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Predictive Value of Tan Score for Recurrent Infarction in Elderly Patients with AIS ZHAO Hongying, ZHANG Huifang, YANG Guotao, GU Qianqian, WANG Wenhao, WANG Haibin IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 631-635.   DOI: 10.7517/issn.1674-0475.211209 Abstract （350）   HTML （3）    PDF （633KB）（48）       Knowledge map    Save This paper discussed the predictive value of CT middle cerebral artery regional collateral scoring system - Tan score for recurrent infarction in elderly patients with acute ischemic stroke (AIS). 140 elderly AIS patients were selected, including 33 patients with recurrent infarction (observation group) and 107 patients without recurrent infarction (control group), the differences of clinical data, laboratory indexes and Tan score between the two groups were observed. The age of the observation group was significantly higher than that of the control group ( P<0.05). Compared with the control group, the proportion of fibrinogen (FIB) and Tan score ≤1 in the observation group were higher ( P<0.05), while the blood flow velocity of middle cerebral artery in the observation group were lower ( P<0.05). Tan score was positively correlated with middle cerebral artery blood flow velocity ( r=0.485, P<0.05). Logistic regression showed age, middle cerebral artery blood flow velocity and Tan score were the influencing factors of recurrent infarction in elderly AIS patients ( P<0.05). The area under ROC curve of recurrent infarction predicted by Tan score was 0.685, P<0.05, and the sensitivity and specificity were 76.00% and 67.50% respectively. CT middle cerebral artery regional collateral scoring system Tan score has certain application value in predicting recurrent infarction Reference | Related Articles | Metrics

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Diagnosis and Analysis of Rotator Cuff Injury in Female Badminton Athletes with MRI PDW-SPAIR Sequence ZHANG Ling, AN Yifan, FAN Yong, QIU Mingqiang IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 680-684.   DOI: 10.7517/issn.1674-0475.211131 Abstract （314）   HTML （5）    PDF （587KB）（55）       Knowledge map    Save This research explored the value of magnetic resonance proton density-weighted spectral attenuated inversion recovery (PDW-SPAIR) sequence in the diagnosis of rotator cuff injury in female badminton players and its comparison with arthroscopic findings. 76 female badminton players treated for shoulder disease were selected and underwent magnetic resonance PDW-SPAIR sequence and arthroscopy. Through inspection and analysis, 68.42% of them were rotator cuff injuries; the sensitivity, specificity and accuracy of magnetic resonance PDW-SPAIR sequence in diagnosing patients with rotator cuff injury were 96.15%, 91.67%, and 94.74%, respectively, and compared with arthroscopic diagnosis, there was no significant difference ( P>0.05). It was high consistency between magnetic resonance PDW-SPAIR sequence diagnosis of rotator cuff injury in patients with injury grading and arthroscopic diagnosis (Kappa value 0.981). The preoperative magnetic resonance PDW-SPAIR sequence rotator cuff fatty infiltration score of patients with rotator cuff injury confirmed by magnetic resonance PDW-SPAIR sequence examination was higher than that during surgery ( P<0.05). This shows the magnetic resonance PDW-SPAIR sequence has high diagnostic performance in the diagnosis of rotator cuff injury in female badminton players, and its diagnosis of rotator cuff injury patients has a high consistency with arthroscopic diagnosis. Reference | Related Articles | Metrics

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Application of Preoperative 3D Printing Model Simulating Operation in Percutaneous Nephrolithotomy based on CT Three-dimensional Reconstruction Imaging ZHAO Shuxiao, LI Feng, QIN Zhibiao, BI Gewen, LEI Hua, LI Qiguang, ZHENG Fang, NING Xin, HUANG Juezhuo, GU Nengyu IMAGING SCIENCE AND PHOTOCHEMISTRY    2023, 41 (1): 17-22.   DOI: 10.7517/issn.1674-0475.221026 Abstract （302）   HTML （19）    PDF （887KB）（86）       Knowledge map    Save This study investigated the effect of preoperative 3D printing model based on CT 3D reconstruction imaging to simulate surgical operation in the treatment o f patients with complex kidney stones by percutaneous nephrolithotomy. 96 patients with complex kidney stones were selected,and they were randomly divided into a 3D group and a routine group with 48 cases in each group. The patients in 3D group were treated with preoperative 3D printed model simulates the operation of percutaneous ephrolithotomy based on CT three-dimensional reconstruction imaging, and the routine group only takes preoperative CT three-dimensional reconstruction for percutaneous nephrolithotomy under surgical positioning. The operation time, operative blood loss, success rate of single puncture, postoperative stone clearance rate, and the changes of peripheral blood white blood cells (WBC), hemoglobin (Hb), serum procalcitonin (PCT), C-reactive protein (CRP), cystatin C (CysC), blood urea nitrogen (BUN) and serum creatinine (Scr) were compared between the two groups, and the operative complications of the two groups were recorded. The operation time and operative blood loss in the 3D group were lower than those in the conventional group, and the success rate of single puncture in the 3D group was higher than that in the conventional group ( P<0.05). The level of CysC at 24 hours after operation was lower than that of the routine group ( P<0.05). The changes of peripheral blood WBC, Hb, serum PCT, and CRP of the two groups of patients were monitored before surgery, 24 hours after surgery, and 72 hours after surgery. There was no significant difference in the change trends of peripheral blood WBC, Hb, serum PCT and CRP between 3D group and routine group ( P>0.05). After surgery the complications were counted in the two groups, the complication rate of the 3D group was 4.17% which lower than that of the conventional group 16.67% ( P<0.05). The preoperative 3D printing model simulation based on CT 3D reconstruction imaging can effectively shorten the operation time, reduce the blood loss, improve the single success rate, and reduce the degree of damage to the patient's renal function. Reference | Related Articles | Metrics

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The Clinical Significance of TIBI Classification and TCD Blood Flow Reversal before and after Thrombolysis in MCA Occlusion Patients CHEN Shangchao, HU Mingyan IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 459-463.   DOI: 10.7517/issn.1674-0475.211116 Abstract （295）   HTML （6）    PDF （688KB）（54）       Knowledge map    Save This study explored the relationship between the transcranial Doppler (TCD) assessment of cerebral ischemia thrombolytic classification (TIBI), TCD blood flow reversal and the prognosis of patients with acute middle cerebral artery (MCA) occlusive stroke. Chosen 144 MCA occlusive stroke patients as the research objects, all patients were treated with intravenous alteplase thrombolysis. According to the prognosis of patients within 90 days of onset, they were divided into a good prognosis group with 98 cases and a poor prognosis group with 46 cases, and compared the cerebral ischemia thrombolysis classification (TIBI) and TCD blood flow reversal before and after thrombolysis between the two groups. Re-examined 24 hours after the operation, the TIBI blood flow classification distribution of the good prognosis group was better than that of the poor prognosis group ( P<0.05). The AUC values of TIBI blood flow improvement and TCD blood flow reversal rate predicted the prognosis of patients with MCA occlusive stroke after thrombolytic therapy were 0.757 and 0.578, respectively. The higher NIHSS scores, diabetes, coronary heart disease, and atrial fibrillation at admission would significantly increase the risk of poor prognosis on admission ( P<0.05). After thrombolysis, TIBI blood flow was improved and TCD blood flow was improved and reversal reduced the risk of poor prognosis in patients ( P<0.05). Through early observation of TIBI blood flow improvement after thrombolytic therapy and TCD blood flow reversal could have a certain clinical value for evaluating the prognosis of patients, and the two can effectively complement each other. Reference | Related Articles | Metrics

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The Changes of Pelvic Floor Ultrasound Parameters and Urodynamic Indexes after Hysterectomy and the Effect of Rehabilitation Treatment ZHOU Qin, LI Qi, ZHANG Yuanyuan IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 596-600.   DOI: 10.7517/issn.1674-0475.211124 Abstract （283）   HTML （3）    PDF （531KB）（38）       Knowledge map    Save This study explored the changes of pelvic floor ultrasound parameters and urodynamic parameters before and after total hysterectomy in patients with cervical cancer and the effect of pelvic floor rehabilitation. 137 cases of cervical cancer patients undergoing total hysterectomy were selected for clinical research. All patients were tested for pelvic floor ultrasound parameters and urodynamic parameters before and 3 months after surgery, among them, 120 patients received pelvic floor rehabilitation after surgery. The results showed: the measured value of the bladder neck reduction, the urethral rotation angle, the posterior angle of the bladder neck in the resting state, the posterior angle of the bladder and the urethra in the maximum Valsalva state, and the vertical distance between the bladder neck and the underside of the pubic symphysis (BSD) all increased to a certain extent compared with those before the operation ( P<0.05). After the operation, the patient’s bladder compliance, maximum urine flow rate, and maximum detrusor pressure were significantly lower than those before the operation ( P<0.05), and the maximum bladder volume was significantly increased ( P<0.05). Total hysterectomy will have obvious adverse effects on the pelvic floor function and bladder voiding function for patients with cervical cancer. This part of patients should be given appropriate rehabilitation after the operation to promote the recovery of function and improve the quality of life. Reference | Related Articles | Metrics

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Evaluation of DCE-MRI Parameters for Postoperative Femoral Head Necrosis in Patients with Femoral Neck Fractures YANG Junzhong, HU Hao, LI Jiabin, LI Liang, HUANG Pan IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (5): 1143-1147.   DOI: 10.7517/issn.1674-0475.220326 Abstract （272）   HTML （2）    PDF （638KB）（37）       Knowledge map    Save This study investigated the value of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in evaluating the blood supply of the femoral head in patients with femoral neck fracture and its relationship with postoperative complications of femoral head necrosis. A retrospective study of 52 patients with femoral neck fractures was selected, and the patients were grouped according to whether they had femoral head necrosis within 12 months after surgery. Among them, 130 cases without femoral head necrosis were classified as non-necrosis group, and 22 cases with femoral head necrosis were classified as necrosis group. All patients underwent DCE-MRI before surgery, 5 days after surgery, and 3 months after surgery. The peak time of the same region of interest (ROI) in the upper outer and inner upper quadrant of the affected side in the necrosis group was higher than that in the non-necrosis group at 5 days and 3 months after operation ( P<0.05). Increased age, preoperative traction, Garden classification type IV, and prolonged peak time of upper outer quadrant or upper inner quadrant 5 days after operation were independent risk factors for postoperative femoral head necrosis in patients with femoral neck fracture ( P<0.05). Postoperative professional rehabilitation was a protective factor for patients with femoral head necrosis ( P<0.05). DCE-MRI has a certain value in evaluating the occurrence of femoral head necrosis after surgery, and it has a guiding significance for early clinical diagnosis and timely intervention measures. Reference | Related Articles | Metrics

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Application of SMART 3D-SMI in the Differential Diagnosis of Benign and Malignant in TI-RADS 4 Thyroid Nodules LI Chaoxi, WEN Dehui, LIU Weiliang, LU Haiyong IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 510-514.   DOI: 10.7517/issn.1674-0475.211204 Abstract （262）   HTML （4）    PDF （756KB）（79）       Knowledge map    Save This study investigated the application value of 3-dimensional ultrasound imaging (smart 3D-SMI) in the differential diagnosis of benign and malignant in TI-RADS 4 thyroid nodules. 120 cases of patients (128 nodules) with TI-RADS type 4 nodules were selected and analyzed the diagnostic efficacy of CDFI, 2D-SMI and 3D-SMI for benign and malignant of TI-RADS type 4 nodules. Pathologically confirmed 84 cases benign and 44 cases malignant. TI-RADS had 87 grades 4a, 30 grades 4b and 11 grades 4c, with an accuracy rate of 67.97%. Compared with CDFI, 2D-SMI and 3D-SMI had higher blood flow grades, and detected more grade 3 blood flow. There was no statistically significant difference between 2D-SMI and 3D-SMI grades ( P＞0.05). There was no significant difference in the blood flow distribution pattern of benign nodules in CDFI, 2D-SMI and 3D-SMI ( P＞0.05). Compared with CDFI, malignant nodules showed more type Ⅲ in 2D-SMI and 3D-SMI modes ( P＜0.05). TI-RADS combined with CDFI, 2D-SMI and 3D-SMI respectively in the differential diagnosis of benign and malignant thyroid nodules, compared of the three methods, TI-RADS +3D-SMI had higher sensitivity, accuracy and negative predictive value ( P<0.05), and had no significant difference in diagnostic specificity and positive predictive value ( P＜0.05). SMART 3D-SMI can accurately assess the microvascular spatial distribution and pattern of thyroid TI-RADS 4 nodules. Reference | Related Articles | Metrics

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Application of MRI Combined with Transrectal Ultrasound Targeted Puncture in the Diagnosis of Prostate Cancer NIU Ben, CAO Hui IMAGING SCIENCE AND PHOTOCHEMISTRY    2023, 41 (1): 6-10.   DOI: 10.7517/issn.1674-0475.221024 Abstract （261）   HTML （25）    PDF （693KB）（115）       Knowledge map    Save This study explored the application of MRI combined with transrectal ultrasound (TRUS) targeted puncture in the diagnosis of prostate cancer (PCA). 234 patients with prostate disease diagnosed by MRI combined with transrectal ultrasound targeted puncture were selected as the targeted group, including 114 patients with PCA (PCA group) and 120 patients with benign prostatic hyperplasia (benign group), and then the imaging features of the two groups were compared. In addition, 106 patients in the same period with prostate disease who received traditional 12-needle transrectal ultrasound puncture were selected as the control group. Compared the number of puncture needles and the length of cancer tissue obtained by the two puncture methods. The results showed that in MRI features, the proportion of patients with low T2WI signal, irregular lesion morphology, blurred lesion boundary and diffusion-weighted imaging with high signal in PCA group was significantly higher than that in benign group ( P<0.05). Comparison of ultrasound imaging features, the proportion of patients with hypoecho, irregular shape of lesions, microcalcified lesions, posterior echo attenuation, and blood flow grade (2-3) in PCA group was significantly higher than that in benign group ( P<0.05). The average number of puncture needles in the targeted group was significantly lower than that in the control group ( P<0.05). The length of cancer tissue obtained by puncture in the targeted group was longer than that in the control group ( P<0.05). MRI combined with transrectal ultrasound targeted puncture has higher clinical value in the diagnosis of prostate cancer. Reference | Related Articles | Metrics

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Research Progress of Ultrasound in Classification, Diagnosis and Treatment of Cesarean Scar Pregnancy LIU Yingying, ZHANG Jieying, WAN Hui, DU Jianwen IMAGING SCIENCE AND PHOTOCHEMISTRY    2023, 41 (1): 1-5.   DOI: 10.7517/issn.1674-0475.221036 Abstract （255）   HTML （29）    PDF （755KB）（124）       Knowledge map    Save With an increased cesarean delivery rate and the advent of the "one couple two children" policy, the increase in the number of women who choose to become pregnant again despite having a previous cesarean section, and the incidence of abnormal placentation is steadily rising. Cesarean scar pregnancy is a special pregnancy in which the placenta position is abnormal and reaches the incision of the lower segment of uterus and invades the muscular layer. Because of the nonspecific clinical features, once CSP patients fail to receive reasonable diagnosis and treatment in the first trimester of pregnancy, serious obstetric complications may occur with the progress of gestational weeks, such as uterine rupture, severe hemorrhage, shock and so on, which pose a serious threat to the life and health of pregnant women. Therefore, pregnant women with a history of cesarean section need to use some auxiliary examinations in time to avoid risks as much as possible. Ultrasonography, as a common examination method in gynecology, shows great application potential in the diagnosis and treatment of CSP. This article reviews the progress of ultrasound in the diagnosis of scar pregnancy. Reference | Related Articles | Metrics

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The Sand Bed Rehabilitation Training Effect and Lateral Collateral Ligament Injury of Ankle Evaluation Through High-frequency Ultrasound Image LIU Yunwu, GUO Qiming, HE Yinghui, SUN Fenghao, LI Shihao IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 665-669.   DOI: 10.7517/issn.1674-0475.211129 Abstract （249）   HTML （2）    PDF （224KB）（57）       Knowledge map    Save This article discussed the clinical value of high-frequency ultrasound in the diagnosis of ankle lateral collateral ligament injury and the rehabilitation training of sand bed. 120 patients with ankle lateral collateral ligament injury treated were selected as the research subjects. Among them, 78 patients were treated with conservative rehabilitation therapy combined with sand bed rehabilitation training (conservative group), and 42 patients were treated with surgery combined with sand bed rehabilitation training (operation group). There was no significant difference in the degree of injury of the anterior talofibular ligament diagnosed by high-frequency ultrasound compared with MRI in the conservative group ( P>0.05). There were 34 cases patients with anterior calcaneofibular ligament injury in the conservative group, and there was no significant difference in diagnosis of anterior calcaneal and fibular ligament injury between high-frequency ultrasonography and MRI ( P>0.05). There was no significant difference in the degree of injury of the anterior talofibular ligament and anterior calcaneofibular ligament in the high-frequency ultrasound diagnosis665of the operation group and intraoperative findings ( P> 0.05); high-frequency ultrasound evaluation of the ankle joint function of the cured group was significantly better than that of the effective group ( P<0.05). There is little difference between high-frequency ultrasound in diagnosing lateral ankle collateral ligament injury and MRI diagnosis and intraoperative findings. High-frequency ultrasound has certain clinical value as a preoperative diagnosis of ankle lateral collateral ligament injury and judgment of ankle function recovery. Reference | Related Articles | Metrics

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Comparison of MSCT Plain Scan and Enhanced Scan in Determining the Properties of Pulmonary Nodules SUN Jingxi, SHI Yibing, WANG Xiuling IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (6): 1428-1432.   DOI: 10.7517/issn.1674-0475.220611 Abstract （245）   HTML （7）    PDF （633KB）（54）       Knowledge map    Save The purpose of this paper was to analyze the difference between the multi-slice spiral computed tomography (MSCT) chest plain and contrast-enhanced scans in judging the nature of pulmonary nodules. The clinical data and MSCT chest plain scan and MSCT enhanced scan images of 125 patients with pulmonary nodules were retrospectively analyzed, and the pulmonary nodule images under MSCT plain scan and MSCT enhanced scan were analyzed. The results showed that the display rate of lobulation sign, pleural stretch sign, vascular bundle sign and vacuole sign under enhanced scan was significantly higher than that of MSCT plain scan ( P<0.05). The enhanced CT value and CT value increment of benign nodular lesions [(56.84±11.36) Hu and (25.67±13.65) Hu, respectively] were lower than those of malignant nodular lesions [(79.52±12.32) Hu and (48.95±12.35) Hu, respectively, P<0.05]. The diagnostic sensitivity, specificity and accuracy of MSCT plain scan were 65.96%, 67.95% and 67.20%, respectively. The diagnostic sensitivity, specificity and accuracy of MSCT enhanced scan were 80.85%, 80.77% and 80.80%, MSCT enhanced scan was closer to pathological results. Both plain MSCT scan and MSCT enhanced scan have good clinical value in judging the nature of pulmonary nodules, but MSCT enhanced scan has more prominent diagnostic value for the nature of pulmonary nodules. Reference | Related Articles | Metrics

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Application of Transvaginal Three-dimensional Ultrasonography in the Diagnosis of Cornual Pregnancy and Tubal Interstitial Pregnancy LIAO Fenghua, LI Rong, CHEN Chunlin, WANG Min, HU Hongbo, LIU Zongjiao IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 443-447.   DOI: 10.7517/issn.1674-0475.211210 Abstract （241）   HTML （10）    PDF （870KB）（44）       Knowledge map    Save This study discussed the value of transvaginal three-dimensional ultrasound in the differential diagnosis of cornual pregnancy and tubal interstitial pregnancy. 55 cases of cornual pregnancy and 60 cases of tubal interstitial pregnancy were selected retrospectively, and compared the differences of ultrasonic image characteristics and quantitative parameters between the two group. The gestational sac bulge, the proportion of intact uterine cavity and the end diastolic velocity (EDV) of trophoblast artery in cornual pregnancy were significantly lower than those in tubal interstitial pregnancy ( P<0.05), while the proportion of peripheral myometrium is intact, endometrial wrapping or adjacent, the thickness of peripheral myometrial wrapping of gestational sac and the resistance index (RI) of trophoblast artery were significantly higher than those in tubal interstitial pregnancy ( P<0.05). The area under ROC curve of myometrial wrapping thickness around gestational sac, trophoblastic artery EDV combined with trophoblastic artery RI in differentiating cornual pregnancy and tubal interstitial pregnancy was 0.865, P<0.05. The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of transvaginal three-dimensional ultrasonography in differential diagnosis of cornual pregnancy and tubal interstitial pregnancy were higher than 80.00%, transvaginal three-dimensional ultrasound has good application value in the differential diagnosis of cornual pregnancy and tubal interstitial pregnancy. Reference | Related Articles | Metrics

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The Application of Phloroglucinol in Labor Analgesia and Its Effect on Ultrasonic Parameters of Uterine Artery CUI Xiaojuan, ZHOU Ling, QI Yuying, LI Pinghua, YUAN Hong IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 579-583.   DOI: 10.7517/issn.1674-0475.211115 Abstract （233）   HTML （2）    PDF （542KB）（28）       Knowledge map    Save This article discusses the effects of intravenous injection of phloroglucinol in the analgesia of primiparous vaginal labor and its influence on the ultrasound parameters of the uterine artery. 180 primiparas were selected, observation group ( n=93) was given intravenous injection of phloroglucinol and control group ( n=87) was given intravenous injection of diazepam. Compared the differences of labor process time, VAS score, uterine artery ultrasound and so on between the two groups. The first and the second stage of labor in the observation group were significantly shorter than those in the control group ( P<0.05). The VAS scores of the different stage of labor in the observation group were significantly lower than those in the control group ( P<0.05). The proportion of vaginal delivery in the observation group was significantly higher than those in the control group ( P<0.05). Before delivery, 30 minutes of injection and full-time cervix there were no significant differences in uterine artery, fetal middle cerebral artery pulsatility index (PI), resistance index (RI) and maximum peak blood flow velocity / end diastolic blood flow velocity (S/D) between the two groups ( P>0.05). In vaginal delivery analgesia, the intravenous injection of phloroglucinol can accelerate the progress of labor, reduce labor pain, and has no significant effect on ultrasonic parameters such as uterine artery. Reference | Related Articles | Metrics

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Study of ERCP-guided sEST+balloon Dilatation for the Treatment of JPDD Complicated with Choledocholithiasis CUI Leilei, LU Meng, KANG Jie, CHI Baoquan, JIANG Lijie, ZHAO Peng IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 525-530.   DOI: 10.7517/issn.1674-0475.211201 Abstract （232）   HTML （1）    PDF （728KB）（24）       Knowledge map    Save This study investigated endoscopic retrograde cholangiopancreatography (ERCP)-guided small endoscopic sphincterotomy (sEST) plus balloon dilatation in the treatment of juxtapapillary duodenal diverticulum (JPDD) complicated with choledocholithiasis. A total of 94 patients with JPDD complicated with choledocholithiasis were selected and divided into elderly group of 47 cases (60-85 years old) and non-elderly group of 47 cases (35-59 years old). Both of the group patients were treated with sEST+balloon dilation under the guidance of ERCP, and counted the gastrointestinal function, complications, liver function before and after surgery [direct bilirubin (DBIL), total bilirubin (TBIL), alanine aminotransferase (ALT)], stress response [adrenocorticotropic hormone (ACTH), corticosteroids (COR), adrenaline (A), norepinephrine (NE)] and inflammatory indicators [C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α)] levels. The results showed that there was no significant difference in the completion of the operation, the recovery of gastrointestinal function, and the incidence of complications between the two groups. The postoperative liver function indexes were significantly decreased ( P<0.05), while there was no significant difference between the two groups ( P>0.05). After one and three days of operation, the levels of serum stress response and inflammatory indexes in the two groups were higher than those before operation, and the elderly group was significantly higher than the non-elderly group after one-day operation ( P<0.05). The results showed that sEST+balloon dilation under the guidance of ERCP was safe and effective in the treatment of JPDD complicated with choledocholithiasis, but the elderly patients could have stronger stress and inflammatory reactions. Reference | Related Articles | Metrics

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Application of Ultrasound-guided Intermuscular Sulcus Brachial Plexus Block Combined with Superficial Cervical Plexus Block in Clavicular Fracture Surgery FU Xiuli, WANG Sen, SUN Zhipeng, LEI Fengqiong, FAN Li IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 504-509.   DOI: 10.7517/issn.1674-0475.211220 Abstract （230）   HTML （3）    PDF （1077KB）（52）       Knowledge map    Save This paper analyzed the difference in anesthesia effect between ultrasound-guided intermuscular sulcus brachial plexus block combined with superficial cervical plexus block and traditional one-needle method of intermuscular sulcus brachial plexus block combined with superficial cervical plexus block in clavicle fracture surgery. 104 children with clavicular fractures who were to undergo surgical treatment were collected, and a prospective randomized trial plan was used to divide the 104 children with clavicular fractures into an ultrasound group and a traditional group, with 52 children in each group. Compared the effects of nerve block, anesthesia effect, mean arterial pressure (MAP), heart rate (HR), dynamic fluctuation of blood oxygen saturation (SpO 2), muscle strength parameters and adverse reactions caused by two anesthesia methods in the two groups. Comparative analysis of the onset time of sensory and motor blocks showed that the ultrasound group was shorter than the traditional group, while the duration of analgesia and motor block were longer than those of the traditional group ( P<0.05). Ultrasound-guided intermuscular sulcus brachial plexus block combined with superficial cervical plexus block had better nerve block effect ( P<0.05). The muscle strength of the elbow flexion joint of the children in the ultrasound group was higher than that in the traditional group at 2 h, 6 h, and 12 h after operation ( P<0.05). The postoperative complication rate in the ultrasound group was lower than that in the traditional group ( P<0.05). Ultrasound-guided intermuscular sulcus brachial plexus block combined with superficial cervical plexus block can perform more accurate operation than traditional one-needle method of intermuscular sulcus brachial plexus block combined with superficial cervical plexus block, with shorter operation time, and better anesthesia effect. As well as the side-effect on muscle strength recovery of children is smaller, and the rate of anesthesia complications is lower. Reference | Related Articles | Metrics

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Application of Contrast-enhanced Ultrasound in the Diagnosis of Crohn's Disease YE Xiaoli, PENG Yongji, ZHU Jiacheng IMAGING SCIENCE AND PHOTOCHEMISTRY    2023, 41 (1): 28-32.   DOI: 10.7517/issn.1674-0475.221018 Abstract （228）   HTML （9）    PDF （863KB）（86）       Knowledge map    Save This study investigated the clinical value of contrast-enhanced ultrasound (CEUS) in the diagnosis of Crohn's disease (CD). 123 patients with Crohn's disease diagnosed by colonoscopy were selected as the research objects, including 89 patients in active stage and 34 patients in remission stage. All patients underwent ultrasound and CEUS examination. The intestinal wall thickness, Limberg classification of intestinal wall blood flow and CEUS quantitative analysis parameters[rise time (RT), peak intensity (PI), time to peak (TTP)] were compared between the two groups. The intestinal wall thickness of 89 patients in active stage was significantly higher than that of patients in remission stage ( P<0.05). The Limberg grade distribution of intestinal wall blood flow in active patients was higher than that in remission patients ( P<0.05). The PI value of active stage patients was significantly higher than that of remission stage patients ( P<0.05), and RT value and TTP value were significantly lower than those of remission stage patients ( P<0.05). There was no significant difference in intestinal wall thickness between patients with severe, moderate and mild activity ( P>0.05). The Limberg grade distribution of intestinal wall blood flow in patients with severe activity was higher than that in patients with mild and moderate activity ( P<0.05). The PI value of patients with severe activity was significantly higher than that of patients with mild and moderate activity ( P<0.05), and the RT and TTP value were significantly lower than those of patients with mild and moderate activity ( P<0.05). The AUC values of PI, RT and TTP in the diagnosis of Crohn's disease in remission and active phase were 0.852, 0.711 and 0.746, respectively. CEUS examination has high clinical application value in the judgment of disease condition and disease activity degree of Crohn's disease patients. Reference | Related Articles | Metrics

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Influence of Knee Arthroplasty on Joint Function Recovery in Patients with Knee Unicompartmental Osteoarthritis LIN Xiaoping, MIAO Decheng, LI Yawei IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 655-658.   DOI: 10.7517/issn.1674-0475.211212 Abstract （226）   HTML （2）    PDF （505KB）（45）       Knowledge map    Save This study explored the application value of knee arthroplasty in the treatment of unicompartmental knee osteoarthritis. 103 patients with knee single compartment osteoarthritis were divided into control group ( n=53) and observation group ( n=50) according the operation mode, the control group was treated with single condylar replacement, and the observation group was treated with knee joint replacement, the operation time and intraoperative bleeding volume of the two groups and so on were observed. The operation time and hospitalization time in the observation group were significantly longer than that in the control group, and the intraoperative bleeding amount was significantly more than that in the control group ( P<0.05). There were no significant differences between the observation group and the control group in terms of the change value of femoral anterior condyle deviation, femoral prosthesis flexion angle, tibial retroinclination angle and tibial angle ( P>0.05). The serum levels of interleukin-6 (IL-6) and C-reactive protein (CRP) in the observation group at 24 hours after operation were significantly higher than those in the control group ( P<0.05). There was no significant difference in knee mobility (ROM) and New York Special Surgery Hospital knee joint (HSS) between the observation group and control group ( P>0.05). There was no significant difference in the incidence of complications between the observation group and the control group ( P>0.05). Knee arthroplasty has a good effect on the treatment of knee unicompartmental osteoarthritis, but it has many disadvantages, such as large trauma, large amount of bleeding and so on. Reference | Related Articles | Metrics

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MRI Diagnosis of Sports Meniscus Injury and Evaluation of Postoperative Rehabilitation Effect LI Yan, ZHAO Hailing, LI Wei, ZHAO Dan IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 675-679.   DOI: 10.7517/issn.1674-0475.211206 Abstract （225）   HTML （7）    PDF （901KB）（112）       Knowledge map    Save This article investigated the value of magnetic resonance imaging (MRI) in diagnosing the degree of sports-induced meniscus injury in young and middle-aged patients and the postoperative rehabilitation effect of patients. A retrospective study was performed on 98 patients with sports-induced meniscus injury treated. All patients received high-frequency ultrasound and MRI examinations before surgery, and all patients received arthroscopic surgical repair. The results showed that the sensitivity and specificity of MRI in diagnosing knee meniscus injury by preoperative MRI were 90.00% and 88.16%, the sensitivity and specificity of knee ligament injury by MRI were 76.79% and 97.02% respectively. The MRI damage grade of knee meniscus at 3 months and 6 months after operation was significantly lower than that before operation, and the difference was statistically significant ( P<0.05). 6 months after the operation, the knee joint function grade was positively correlated with MRI meniscus recovery grade ( r=0.850, P<0.001). MRI has high diagnostic value in the diagnosis of young and middle-aged sports meniscus injury, and could also evaluate the postoperative rehabilitation effect of patients. Reference | Related Articles | Metrics

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Diagnostic Value of Prenatal Ultrasonography on Placenta Previa with Placenta Accreta ZOU Lihua, MIN Aiping, WANG Hui, LAI Yingying, LI Mingxing IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 515-519.   DOI: 10.7517/issn.1674-0475.211213 Abstract （222）   HTML （1）    PDF （730KB）（45）       Knowledge map    Save This study investigated the clinical value of prenatal ultrasonography in the diagnosis of placenta previa with placenta accreta. Seventy-two pregnant women with placenta previa were selected as clinical research subjects, and all of them unwent prenatal ultrasound examination. Among them, 37 pregnant women with placenta previa combined with placenta accreta (inplantation group) and 35 pregnant women with placenta previa only (control group) were compared. Analyzed the differences on sonographic features and ultrasonic scores of the two groups, and the value of the ultrasonic scores in the diagnosis of placenta previa combined with placenta accreta. In implantation group, the proportion of patients with placental tissue thickness ≥3.0 cm, the detection rate of recesses in placental parenchyma, the proportion of patients with intact retroplacental hypoechoic zone, the proportion of patients with the thickness of the thinnest part of the uterine basal layer ≤1.0 mm, and the patients with rough bladder surface, the proportion of patients with regular blood flow signals at the base of the placenta, and the detection rate of cervical and peripheral blood flow signals were all higher than those of the control group ( P＜0.05). The prenatal ultrasound score of the implantation group was significantly higher than that of the control group ( P＜0.05). The AUC value of the prenatal ultrasound score for the diagnosis of placenta previa combined with placenta accreta was 0.944. Prenatal ultrasound in pregnant women with placenta previa and placenta accreta has typical features such as increased placental tissue thickness and occurrence of placental intraparenchymal recesses. Prenatal ultrasound scoring has high sensitivity and specificity for the diagnosis of placenta previa complicated with accreta. Reference | Related Articles | Metrics

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The Role of DCE-MRI in the Evaluation of Blood-brain-barrier Alteration after Balanced Acupuncture in Migraine without Aura and Its Relationship with Analgesic Effect ZHANG Qianqian, LI Yan, REN Hong, XIAO Aiwei, LIU Shanshan, YU Guiyong IMAGING SCIENCE AND PHOTOCHEMISTRY    2023, 41 (1): 11-16.   DOI: 10.7517/issn.1674-0475.221012 Abstract （220）   HTML （15）    PDF （758KB）（77）       Knowledge map    Save This paper investigated the role of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in the assessment of blood-brain-barrier alterations after balanced acupuncture in migraine without aura and its relationship with analgesic effect. 157 patients with migraine without aura were divided into a total effective group ( n=115) and ineffective group ( n=42) according to the effect of balance acupuncture. Compared the DCE-MRI blood-brain barrier parameters[bilateral thalamus, basal ganglia, amygdala, white matter blood-brain barrier penetration (Ktrans), plasma fraction (Vp)] before and after 4 weeks of treatment between the two groups. The results showed that the headache degree score was lower in the total effective group than in the ineffective group, and the amygdala Vp was higher in the pre-treatment and after 4 weeks of treatment than in the ineffective group ( P<0.05). The amygdala Vp was positively correlated with the treatment efficacy ( P<0.001). The headache degree score and pre-treatment amygdala Vp were both independent factors influencing the analgesic effect ( P<0.05), and the two combined prediction of analgesia ineffectiveness had the largest AUC. Thus Vp values of DCE-MRI can be used to reflect the efficacy of balanced acupuncture in migraine without aura, and also can be used to assess blood-brain barrier alterations, and has high diagnostic efficacy for analgesic effects. Reference | Related Articles | Metrics

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Value Analysis of CT Three-dimensional Reconstruction before THA for Prosthesis Implantation Simulation ZHANG Jingtang, ZHANG Binbin, LI Haiya IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 448-452.   DOI: 10.7517/issn.1674-0475.211203 Abstract （219）   HTML （3）    PDF （795KB）（34）       Knowledge map    Save This study investigated the clinical application value of prosthesis implant simulation using CT three-dimensional reconstruction before total hip arthroplasty (THA). Selected 93 patients who were to undergo THA surgery and divided them into reconstruction group with 47 cases (preoperative CT three-dimensional reconstruction to simulate acetabular prosthesis implantation) and conventional group with 46 cases by random number table. Both groups underwent direct anterior approach total hip arthroplasty in the lateral decubitus position. There was no significant difference in the outer diameter of the cup, cup abduction angle, horizontal distance of the cup rotation center and vertical distance of the cup rotation center between predicted by the preoperative CT three-dimensional reconstruction simulation in the reconstruction group and the intraoperative measurement results ( P>0.05). One month after operation, the measured values of SLS and stride length in the reconstruction group were significantly higher than those in the conventional group, and the difference was statistically significant ( P<0.05). The distribution of joint function was better than that of the conventional group and the difference was statistically significant ( P<0.05). Using CT 3D reconstruction to perform prosthesis implantation simulation before THA can effectively improve the surgical effect, improve the accuracy of prosthesis implantation, and has a better effect on improving the patient's hip joint function and postoperative gait function. Reference | Related Articles | Metrics

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The Evaluation of Renal Blood Perfusion after Atherosclerotic Renal Artery Stenosis by rTCEUS ZHANG Yan, XUE Yinghong, JI Donghui IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 464-468.   DOI: 10.7517/issn.1674-0475.211125 Abstract （219）   HTML （3）    PDF （1009KB）（44）       Knowledge map    Save This paper explored the value of real-time contrast-enhanced ultrasonography (rTCEUS) in evaluating renal blood perfusion after percutaneous transluminal renal angioplasty and PTRAS in patients with severe atherosclerotic renal artery stenosis. 31 patients with severe atherosclerotic renal artery stenosis (ARAS 70%) who received PTRAS were selected as the research objects, and all patients underwent color-coded duplex ultrasound (CCDS) and rTCEUS, respectively and compared the time-intensity curve (TIC) parameters of rTCEUS contrast enhancement in patients before and after PTRAS. The morphological changes of TIC before and after PTRAS were recorded, and the correlation between the parameters before and after PTRAS and the estimated glomerular filtration rate (EGFR) was calculated. The peak intensity (PI) and rising slope (S) of the curve after PTRAS were significantly higher than those before PTRAS ( P<0.05), while the peak time (TTP) and mean transit time (MTT) were significantly lower than those before PTRAS ( P<0.05). There had no significant differences in the area under the curve (AUC), AUC-influx (AUC-WI) and AUC-clearance (AUC-WO) between pre-PTRAS and post-PTRAS ( P>0.05). There was no correlation between ΔEGFR and ΔTTP, ΔMTT, ΔS, ΔAUC, ΔAUC-WI and ΔAUC-WO (all P>0.05) except ΔPI with positive correlation ( P<0.05). Parameters obtained by rTCEUS have a great value in evaluating the changes of renal blood flow in patients with severe renal artery stenosis after PTRAS. Reference | Related Articles | Metrics

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Evaluation of Fetal Central Nervous System and Vertebra Development by MRI ZHANG Yong, WANG Xu IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 606-609.   DOI: 10.7517/issn.1674-0475.211207 Abstract （216）   HTML （2）    PDF （509KB）（22）       Knowledge map    Save This study investigated the clinical value of prenatal magnetic resonance (MRI) technology in the diagnosis of fetal central nervous system and vertebral malformations. Selected 336 pregnant women with suspected fetal central nervous system and vertebral malformations for clinical research. All pregnant women underwent MRI scans and color Doppler ultrasound examinations. The results of fetal pathology after delivery or termination of pregnancy were used as the gold standard to judge the value of MRI prenatal screening in the diagnosis of fetal central nervous system and vertebral malformations. There was no significant difference between MRI and prenatal color Doppler ultrasound in the diagnosis of various types of fetal central nervous system developmental malformations ( P＞0.05), but the overall coincidence rate of diagnosis was higher than that of prenatal color Doppler ultrasound ( P＜0.05). The sensitivity of MRI for central nervous system malformations was 87.50%, the specificity was 86.36%, and the area under the curve(AUC)of ROC was 0.869. The sensitivity and specificity of color Doppler ultrasound in the diagnosis of fetal central nervous system malformations were 69.44% and 81.82%, and the AUC was 0.756. The coincidence rate of MRI in diagnosing scoliosis was higher than that of color Doppler ultrasound ( P＜0.05), the sensitivity and specificity of MRI in diagnosing fetal vertebral deformity were 86.36%, the specificity was 97.45%, and the AUC was 0.919. The sensitivity of color Doppler ultrasound was 50.00%, the specificity was 81.53%, and the AUC was 0.658. MRI technology had an obvious advantages over prenatal color Doppler ultrasound in diagnosing fetal central nervous system and vertebral malformation, and it could be worthy of clinical application. Reference | Related Articles | Metrics

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Application of 320-slice CT in the Interventional Therapy for Congenital Heart Disease GAO Haichao, LI Shucheng, KONG Fanqiang, LI Dongyang, WANG Qingsong, WANG Xibing, WANG Zhuxiu IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 615-619.   DOI: 10.7517/issn.1674-0475.211139 Abstract （213）   HTML （1）    PDF （717KB）（36）       Knowledge map    Save This study explored the application value of 320-slice CT in the interventional therapy for congenital heart disease (CHD). A retrospective study was carried out in 66 patients with CHD, including 33 cases of atrial septal defect (ASD) and 33 cases of ventricular septal defect (VSD). All patients underwent transthoracic echocardiography (TTE) and 320-slice CT four-dimensional volume dynamic imaging (4D-CCTA) before and after interventional occlusion surgery. The results showed that the difference between the maximum diameter of ASD, VSD and the waist diameter (POS) of the occluder measured by preoperative TTE and 4D-CCTA was smaller than the difference measured by TTE ( P<0.05). The maximum diameter of ASD and VSD measured by preoperative TTE and 4D-CCTA both had a good correlation with POS and the selected type of occluder ( P<0.05), and the latter had a higher correlation. The postoperative EF, EDVI, ESVI, SVI, and CI of CHD patients measured by 4D-CCTA were lower than those data measured by TTE ( P<0.05). It can be seen that 320-slice CT could accurately measure the size of preoperative ASD and VSD, and total interval length of CHD patients, which could be helpful to guide doctors in selecting the type 615of occluder, and accurately evaluate the left ventricular function of patients after operation. Reference | Related Articles | Metrics

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The Diagnostic Efficacy of Two-dimensional Ultrasound and SWE in Parotid Space-occupying Lesions LIU Qinjun, FAN Yiqun, ZHOU Xiaoling, TAN Jing IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 560-564.   DOI: 10.7517/issn.1674-0475.211141 Abstract （208）   HTML （1）    PDF （681KB）（23）       Knowledge map    Save This study investigated the diagnostic efficacy of two-dimensional ultrasound and shear wave elastography (SWE) in parotid space-occupying lesions. Choosing 80 patients with parotid space-occupying lesions to compared the ultrasonic characteristics and Young’s modulus between malignant and benign tumors. The pathological results confirmed 29 cases of parotid gland malignant tumors and 51 cases of benign. In ultrasonic features, the proportions of lobulated, incomplete capsule and unclear boundary of parotid gland malignant tumors were significantly higher than those of benign tumors ( P<0.05). The sensitivity, specificity, accuracy of ultrasound in the diagnosis of parotid gland malignant tumors were 79.31%, 60.78%, 67.50%, respectively. In benign tumors, the maximum and average young’s modulus of mixed tumors were significantly higher than those of adenolymphoma ( P<0.05). The area under the ROC curve of the maximum and average Young’s modulus to distinguish parotid gland mixed tumor and adenolymphoma were 0.768 and 0.759, P<0.05. Two-dimensional ultrasound has certain application value in differentiating benign and malignant tumors of parotid glands. Although SWE cannot distinguish benign and malignant tumors, it is more effective in distinguish mixed tumors and adenolymphoma among benign tumors. Reference | Related Articles | Metrics

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The Study of Spectral CT Signs and Energy Attenuation Curve in Evaluating the Degree of Lung Adenocarcinoma Invasion TIAN Xuetao, NIE Jun IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 479-484.   DOI: 10.7517/issn.1674-0475.211217 Abstract （207）   HTML （2）    PDF （851KB）（40）       Knowledge map    Save This paper explored the evaluation value of energy spectrum CT signs and energy attenuation curve in the evaluation of the degree of lung adenocarcinoma invasion and the guiding significance for the surgical plan. Selected 110 patients with lung adenocarcinoma, and according the degree of tumor invasion diagnosed by surgical pathology the were differently divided into group A ( n=62) and group B ( n=48), the spectral CT examination was performed in both groups before operation. The results showed that the proportion of mixed GGN, the slope of energy decay curve ( K value), the maximum diameter of nodules, and the water-based value of nodules in group B were higher than those in group A ( P<0.05). K value, maximum diameter of nodules and water-based values of BAP1-positive patients were lower than those of BAP1-negative patients, and K value, maximum diameter of nodules and water-based values of Ki-67-positive patients were higher than those of Ki-67-negative patients ( P＜0.05). K value, maximum diameter of nodules, and water-based values were negatively correlated with the expression of BAP1 in lung adenocarcinoma tissues, and positively correlated with the expression of Ki-67 ( P<0.05). The area under the curve (AUC) for mixed GGN, K value, maximum diameter of nodules, and water-based values combined assessment of lung adenocarcinoma invasion as IAC was 0.856. It can be seen that energy spectral CT signs and energy attenuation curve have certain value in evaluating the degree of lung adenocarcinoma invasion, and have guiding significance for the selection of appropriate surgical plan before surgery. Reference | Related Articles | Metrics

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The Effect of Preoperative Tranexamic Acid on Blood Coagulation Function and Blood Flow Parameters of Lower Limbs in KOA Patients YUN Tianbin, DING Jie IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 550-554.   DOI: 10.7517/issn.1674-0475.211119 Abstract （205）   HTML （1）    PDF （623KB）（155）       Knowledge map    Save This study explored the effects of preoperative administration of tranexamic acid on surgical blood loss, blood coagulation status, and lower limb ultrasound blood flow parameters in KOA patients undergoing medial open wedge-shaped high tibial osteotomy. Ninety-four patients who intend to undergo medial open wedge tibial high osteotomy were selected for related research. Using the random number table generated by statistical software, the patients were divided into the test group and the control group with 47 cases in each. The patients in the test group were given preoperatively for tranexamic acid, while only given the same amount of normal saline in the control group instead, and the rest of the treatment measures remained the same. Compared the operation time, apparent blood loss, hidden blood loss, total blood loss and the length of hospital stay between the two groups, and the hemoglobin (Hb), hematocrit, D-dimer, thromboelastogram (TEG) parameters and the average blood flow velocity of the lower limb veins before and after the operation. The apparent blood loss, hidden blood loss, and total blood loss of the test groups were lower than in the control group ( P<0.05). Seventy-two hours after the operation, the Hb value of the test group was higher than that in the control group ( P<0.05). The incidence of deep vein thrombosis (DVT) in the test group was 4.26% compared 550with 2.13% in the control group, and the difference was not statistically significant ( P>0.05). Preoperative intravenous infusion of tranexamic acid is beneficial to reduce surgical blood loss and postoperative hidden blood loss, but it could not significantly affect the patient’s TEG parameters and lower limb blood flow velocity, and could not significantly increase the incidence of DVT. Reference | Related Articles | Metrics

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The Study of MRI and TEG Parameters in the Diagnosis of Hemorrhagic Transformation after Thrombolysis in ACI ZOU Liwen, WANG Yue, PAN Yuling, ZENG Hongjun IMAGING SCIENCE AND PHOTOCHEMISTRY    2023, 41 (1): 23-27.   DOI: 10.7517/issn.1674-0475.221016 Abstract （205）   HTML （8）    PDF （686KB）（68）       Knowledge map    Save This study investigated the value of magnetic resonance imaging (MRI) and thrombela-stogram (TEG) parameters in the diagnosis of hemorrhagic transformation (HT) after thrombolysis in acute cerebral infarction (ACI). 62 ACI patients with HT who received thrombolytic therapy were selected as HT group, and 80 ACI patients without HT transformation who received thrombolytic therapy at the same time were selected as control group. The MRI parameters and TEG parameters of the two groups were compared, and the final clinical diagnosis results were used as the judgment basis to calculate the value of MRI parameters and TEG in diagnosing HT in ACI patients after thrombolysis. The results showed that the phase signal characteristics of susceptibility weighted imaging (SWI) in HT group were mainly characterized by high signal, the proportion of patients with high signal in HT group was significantly higher than that in control group ( P<0.05), and the proportion of patients with low signal and mixed signal in HT group was lower than that in control group ( P<0.05). The sensitivity of SWI, diffusion weighted imaging (DWI) and T1-weighted imaging (T1WI) in the diagnosis of HT were 88.71%, 62.90% and 69.35%, respectively, and the specificity were 86.25%, 80.00% and 82.50%, respectively. The coagulation composite index (CI) value of HT group was significantly lower than that of control group ( P<0.05). The AUC values of SWI, DWI and T1WI in diagnosing HT in patients with ACI thrombolysis were 0.875, 0.715 and 0.759, respectively. The AUC value of CI value in TEG parameters for diagnosing HT in patients with ACI thrombolysis was 0.720. MRI and TEG parameters have high value in the diagnosis of HT in patients with ACI thrombolysis. Reference | Related Articles | Metrics

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The Value of the DKI Model in Magnetic Resonance Imaging for the Diagnosis of Soft Tissue Sarcoma and Its Guidance for Surgical Treatment ZHOU Yue, QI Enlin, LIU Shurong, JIANG Lijie IMAGING SCIENCE AND PHOTOCHEMISTRY    2023, 41 (1): 43-47.   DOI: 10.7517/issn.1674-0475.221037 Abstract （204）   HTML （9）    PDF （710KB）（63）       Knowledge map    Save This paper investigated the value of diffusion kurtosis imaging (DKI) model in magnetic resonance imaging (MRI) for the diagnosis of soft tissue sarcoma and its significance in guiding surgical treatment. 108 eight patients with soft tissue tumors were selected and divided into benign group (45 cases) and malignant group (63 cases) according to the results of surgical pathological examination. All patients underwent MRI examination assisted by DKI model. The results showed that the mean diffusion kurtosis (MK) of tumour tissue in both groups was higher than that of normal muscle tissue at the same level of the tumour, and the mean apparent diffusion coefficient (MD) was lower than that of normal muscle tissue at the same level of the tumour, with the MK in the malignant group being higher than that in the benign group and the MD lower than that in the benign group ( P<0.05). The AUC of MK and MD combined diagnosis of soft tissue sarcoma was 0.935, which was greater than that of diagnosis alone. MK was positively correlated with tumour diameter, pathological grade and invasion of blood vessels/nerves/bone in soft tissue sarcoma and MD was negatively correlated with tumour diameter, pathological grade and invasion of blood vessels/nerves/bone ( P<0.05). The relative risk of 1-year recurrence or metastasis in soft tissue sarcoma patients with high levels of MK was 6.024 times that of patients with low levels, and the relative risk of 1-year recurrence or metastasis in patients with soft tissue sarcoma with low MD level was 4.825 times that of patients with high level. It indicated that the DKI model assisted MRI in diagnosing soft tissue sarcoma was reliable, and was significantly correlated with the pathological characteristics of soft tissue sarcoma, which had a good guiding significance for surgical treatment. Reference | Related Articles | Metrics

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The Changes and Significance of Spine-pelvic Imaging Indexes in Lumbar Degenerative Diseases LI Xiaojun, JIANG Hongnan, FAN Zhichang, YANG Jie, XU Yang IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 584-589.   DOI: 10.7517/issn.1674-0475.211120 Abstract （203）   HTML （2）    PDF （916KB）（37）       Knowledge map    Save This paper discussed the changes of spine-pelvic imaging parameters before and after surgery with lumbar degenerative disease and their relationship with chronic low back pain after surgery. 160 patients with lumbar degenerative disease were selected as the case group, and 80 healthy cases were selected as the control group. X-rays were used to measure the spine-pelvic imaging parameters of the two groups. The case group were treated with lumbar fusion and internal fixation. The patients were followed up for 6 months, and compared the changes of spine-pelvic imaging parameters before and after the operation, and the relationship between the preoperative spine-pelvic imaging parameters and the patient’s postoperative chronic low back pain was discussed. The measured values of the sagittal vertical axis of the spine (SVA), angle of incidence of the pelvis (PI), and the angle of inclination (PT) of the case group were greater than those of the control group ( P<0.05). The lumbar lordosis angle (LL) of the case group was lower than of the control group ( P<0.05). The measured values of SVA and PT of the low back pain group were greater than those of the non-back pain group, and the LL value of the low back pain group was lower than that of the non-back pain group 584 ( P<0.05). The age, Segments ≥3, degeneration of adjacent segments after surgery, and increased PT value are risk factors for low back pain in patients with lumbar degenerative disease after surgery ( P<0.05). There was abnormal changes of lumbar spine curvature in patients with degenerative diseases of the lumbar spine. At the same time, patients with poor postoperative PT value recovery, older age, surgical fusion segment≥3, postoperative adjacent segment degeneration can cause postoperative lumbar pain. Reference | Related Articles | Metrics

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The Study of LAD and Pd in Predicting Paroxysmal Atrial Fibrillation in Patients with Primary Hypertension HUANG Shan, LI Qianling IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 610-614.   DOI: 10.7517/issn.1674-0475.211138 Abstract （202）   HTML （1）    PDF （690KB）（26）       Knowledge map    Save This study explored the value of combined detection of left atrial diameter (LAD) and P-wave dispersion (Pd) in predicting paroxysmal atrial fibrillation in patients with essential hypertension. 69 patients with essential hypertension with paroxysmal atrial fibrillation (observation group) and 207 patients with essential hypertension (control group) were selected in the study. Both of the two groups were performed by biochemical teests, echocardiography and ECG, and the differences of clinical data, Pd and LAD and so on between the two groups were compared. In observation group the comparison of B-type natriuretic peptide (BNP), C-reactive protein (CRP), maximum duration of P wave (Pmax), Pd, LAD, left ventricular mass index (LVMI) was significantly higher than those of the control group ( P<0.05). Logistic regression analysis showed that Pd and LAD were the influencing factors of essential hypertension with paroxysmal atrial fibrillation ( P<0.05). The ROC curve area of LAD combined with Pd in predicting essential hypertension with paroxysmal atrial fibrillation was 0.919, which was significantly higher than 0.815 and 0.745 predicted by LAD and Pd alone ( P<0.05). LAD and Pd are the influencing factors of paroxysmal atrial fibrillation in patients with essential hypertension, the combination of LAD and Pd could have good application value in predicting paroxysmal atrial fibrillation. Reference | Related Articles | Metrics

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Imaging Analysis of Wrist Sprain in Adults with MSCT and MRI ZHANG Hongguang, QIN Xupei, WANG Kangni IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (6): 1323-1327.   DOI: 10.7517/issn.1674-0475.220902 Abstract （201）   HTML （25）    PDF （937KB）（61）       Knowledge map    Save The wrist sprain is mostly caused by external violence. Generally, imaging examination is performed only after the sprain occurs in patients. However, due to the complex structure of wrist joint, it is still impossible to completely and accurately judge the sprain in clinical practice, and its diagnostic criteria also have some limitations, which makes it difficult to analyze the condition of wrist sprain. Due to the existence of bone overlap, X-ray is not effective in the diagnosis of wrist sprain, which is prone to image distortion, misdiagnosis and missed diagnosis. Multi slice spiral CT (MSCT) and magnetic resonance imaging (MRI) have powerful post-processing functions, which can provide accurate, intuitive and comprehensive imaging information for wrist sprain. However, there are some limitations in using the two methods alone, and joint detection can significantly reduce the occurrence of misdiagnosis and missed diagnosis. This article reviews the application of MRI combined with MSCT in wrist sprain examination, and analyzes the application value of the combined detection method to provide a basis for clinical practice. Reference | Related Articles | Metrics

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The Value of Real-time Shear Wave Elastography in Determining the Type and Surgical Outcome of Athletic Achilles Tendon Rupture QIAO Hua, SHEN Suhong, WANG Hongli, SHEN Zehang IMAGING SCIENCE AND PHOTOCHEMISTRY    2023, 41 (1): 173-176.   DOI: 10.7517/issn.1674-0475.221030 Abstract （201）   HTML （2）    PDF （745KB）（17）       Knowledge map    Save This study aimed to analyze the value of real-time shear wave elastography(SWE) in determining the type and surgical outcome of athletic Achilles tendon rupture. 65 patients with athletic Achilles tendon rupture were selected as the research objects, including 45 patients with incomplete rupture and 20 patients with complete rupture. The mean elastic value (Emean) of Achilles tendon in longitudinal section was measured by real-time SWE. The American Orthopedic Foot and Ankle Society (AOFAS) score was used to evaluate the postoperative efficacy. The results showed that the Emean value of Achilles tendon in longitudinal section of was significantly lower in the complete rupture group than in the incomplete rupture group ( P<0.01). With Emean ≤ 89.434 kPa as the cut-off value, the sensitivity, specificity and area under the curve of Emean in the longitudinal section of Achilles tendon were 95.00%, 73.33% and 0.832, respectively. Compared with the patients with good treatment effect, the Emean of the Achilles tendon in longitudinal section of the patients with poor treatment effect was significantly reduced( P<0.05). With Emean ≤ 184.81 kPa as the cut-off value, the sensitivity, specificity and area under the curve of Emean in the longitudinal section of Achilles tendon were 93.33%, 58.00% and 0.760. This study showed that Emean longitudinal section of Achilles tendon could be used to evaluate the type of Achilles tendon rupture and the recovery of Achilles tendon after surgery. Reference | Related Articles | Metrics

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Application of DTI Fiber Bundle Reconstruction Combined with Intraoperative Ultrasound in Glioma Surgery of Brain Functional Areas LI Xuzhao, CHENG Jingsheng, XU Lixin IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 494-498.   DOI: 10.7517/issn.1674-0475.211214 Abstract （200）   HTML （1）    PDF （933KB）（37）       Knowledge map    Save This paper investigated the value of diffusion tensor imaging (DTI) fiber bundle reconstruction combined with intraoperative ultrasound in the operation of gliomas in brain functional areas. 89 patients with gliomas in brain functional areas were selected, the observation group ( n=46) was given DTI fiber bundle reconstruction combined with intraoperative ultrasound, and the control group was given intraoperative ultrasound localization, and both groups were given glioma resection surgery. The results showed that the total tumor resection rate, postoperative Karnofsky functional state (KPS) score, the proportion of symptom improvement, the score of Anderson brain tu( P<0.05). In the observation group, the high-level proportion and anisotropy score (FA) of pathological types in patients with no change or aggravation were higher than those in improved patients ( P<0.05), and the apparent diffusion coefficient (ADC) was lower than those in improved patients ( P<0.05). The areas under the ROC curve of FA value and ADC value predict the improvement of treatment in the observation group were 0.756 and 0.803, respectively, P<0.05. DTI fiber bundle reconstruction combined with intraoperative ultrasound has good value in the operation of gliomas in brain functional areas, which is worthy of clinical use. Reference | Related Articles | Metrics

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The Value Observation of Acute Cerebral Infarction and Carotid Atherosclerosis by CS-3D MERGE Technique Assessment HUANG Guobiao, ZHENG Ying, FAN Xianyi, CHNE Chunbing IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 540-544.   DOI: 10.7517/issn.1674-0475.211109 Abstract （198）   HTML （1）    PDF （676KB）（29）       Knowledge map    Save This study discussed the value of rapid three-dimensional MRI of vascular wall (CS-3D MERGE) technology assessment for acute cerebral infarction and carotid atherosclerosis. Chosen 68 patients with ischemic cerebral infarction as observation group and 50 patients with transient ischemic attack as control group, both groups were examined by CS-3D MERGE. Analyzed the differences of the degree of middle cerebral artery stenosis, plaque remodeling index, enhancement degree and eccentricity index between the two groups, and CS-3D MERGE was analyzed to determine the degree of carotid artery stenosis and the nature of plaque in observation group. The index of middle cerebral artery plaque reconstruction index and intensification degree in observation group were significantly higher than those in control group ( P<0.05). The area under the ROC curve of reconstruction index and intensification degree in diagnosis of cerebral infarction were 0.839 and 0.671 respectively ( P<0.05). In the observation group the Kappa value of CS-3D MERGE diagnosis of carotid artery stenosis and digital subtraction angiography (DSA) results were 0.825 ( P<0.05), which showed good consistency. The Kappa value of CS-3D MERGE in determining the nature of carotid atherosclerotic plaque and postoperative pathological results was 0.789 ( P<0.05), which showed good consistency. CS-3D MERGE has a good application value in the diagnosis of acute cerebral infarction and carotid atherosclerosis. Reference | Related Articles | Metrics

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Rapid MRI Combined with Maternal Serum Markers in the Diagnosis of Fetal CNS Developmental Malformations in the Second Trimester of Pregnancy SUN Lingling, HU Rong, HU Jingjing IMAGING SCIENCE AND PHOTOCHEMISTRY    2022, 40 (3): 659-664.   DOI: 10.7517/issn.1674-0475.211143 Abstract （196）   HTML （2）    PDF （673KB）（38）       Knowledge map    Save This paper explored the application value of rapid MRI combined with maternal serum marker detection in the diagnosis of fetal central nervous system (CNS) developmental malformations in the second trimester of pregnancy. Selected 112 pregnant women with suspected fetuses CNS developmental malformations in the second trimester of pregnancy as research objects, and all of them underwent MRI examination and maternal serum marker detection. The results showed that the incidence of fetal CNS malformation was 18.75%; 19 cases of fetal CNS malformation were detected by rapid MRI, of which 18 were true positive. The serum levels of alpha-fetoprotein (AFP) and free β-human chorionic gonadotropin (Free-β-hCG) in the second trimester of mothers with fetal CNS malformation were higher than those of non-malformed mothers, while the levels of pregnancy-associated plasma protein-A (PAPP-A) and free estriol (uE3) were lower than those of non-malformed mothers ( P<0.05). The levels of maternal serum AFP, Free-β-hCG, PAPP-A and uE3 were all independent influencing factors of fetal CNS malformation in the second trimester of pregnancy ( P＜0.05). The area under the curve (AUC) for fetal CNS developmental malformations through rapid MRI combined with maternal serum AFP, Free-β-hCG, PAPP-A and uE3 diagnosis was 0.961. Rapid MRI combined with maternal serum marker detection has a high application value in the diagnosis of fetal CNS developmental malformations in the second trimester pregnancy. Reference | Related Articles | Metrics

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Application of Multi-Parameter MRI in the Diagnosis of Prostate Cancer and the Risk Stratification of Disease ZHAO Yan, SUN Yong IMAGING SCIENCE AND PHOTOCHEMISTRY    2023, 41 (1): 177-181.   DOI: 10.7517/issn.1674-0475.221102 Abstract （196）   HTML （5）    PDF （696KB）（21）       Knowledge map    Save This study explored the value of multi-parameter magnetic resonance imaging (mpMRI) in the diagnosis of prostate cancer (PCA) and the stratified evaluation of disease risk. 42 patients with confirmed PCA patients diagnosed by pathological examination (PCA group) and 45 patients with benign prostatic hyperplasia (control group) were selected as subjects. All patients were examined by mpMRI with 3.0T magnetic resonance imaging. The apparent diffusion coefficient (ADC), true diffusion coefficient (D), diffusion distribution index (DDC), maximum enhancement degree (SImax), fastest enhancement rate (Rmax), time to peak (Tmax), average kurtosis (MK), axial kurtosis (Ka), radial kurtosis (Kr) and average diffusion coefficient (MD) were compared between the two groups. Taking the pathological results as the gold standard, the clinical value of mpMRI parameters in the diagnosis of PCA was calculated. The measured values of SImax, Rmax, MK, Ka and Kr in the PCA group were significantly higher than those in the control group ( P<0.05), while the values of ADC, D, DDC, Tmax and MD were significantly lower than those in the control group ( P<0.05). According to the degree of risk, the PCA patients were divided into high risk group ( n=19) and middle and low risk group ( n=23). In high risk group the measured values of SImax, Rmax, MK, Ka and Kr were significantly higher than those in middle and low risk group, while the values of ADC, D, DDC, Tmax and MD in high risk group were significantly lower than those in middle and low risk group ( P<0.05). The area under the ROC curve (AUC) of mpMRI parameter combined diagnosis for PCA was 1, the sensitivity was 100% and the specificity was 100%. There are differences in mpMRI parameters between patients with PCA and patients with benign prostatic hyperplasia, and there are also differences in mpMRI parameters in patients with PCA with different disease risk stratification. The combination of mpMRI parameters in the diagnosis of PCA and benign prostatic hyperplasia has a high clinical value. Reference | Related Articles | Metrics

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Influencing Factors of the Success Rate of Cecal Intubation in MSCT Virtual Colonoscopy SUN Yifei, WANG Qing, HAN Ruina, QIU Shuang IMAGING SCIENCE AND PHOTOCHEMISTRY    2023, 41 (1): 48-52.   DOI: 10.7517/issn.1674-0475.221105 Abstract （195）   HTML （3）    PDF （693KB）（62）       Knowledge map    Save This study mainly analyzed the factors affecting the success rate of cecal intubation during multi-slice spiral CT(MSCT) virtual colonoscopy. 95 patients undergoing MSCT virtual colonoscopy were selected as the study subjects, and 95 patients were surveyed using self-made questionnaires, and 95 questionnaires were issued and 88 were recovered. The success rate of cecal intubation in MSCT virtual colonoscopy was counted, and the failure of blind intubation were included in the control group (14 cases), the successful blind intubation were included in the study group (74 cases). Comparing the anxiety self-rating scale score (SAS) and visual simulation score (VAS) between the two groups. With the dependent variable affecting cecal intubation rate in MSCT virtual colonoscopy, the variables with P<0.05 in univariate analysis was selected for multivariate Logistic regression analysis. The results showed that the SAS score and VAS score of the study group were lower than those of the control group ( P<0.05). The success rate of cecal intubation during colonoscopy was related with age, BMI, quality of bowel preparation, bowel habits. Those who with advanced age, constipation, poor bowel preparation quality, and low cecal intubation during low BMI colonoscopy the rate of cecal intubation during colonoscopy was lower ( P<0.05). The advanced age, constipation, poor bowel preparation quality, high SAS score, low BMI, and high VAS score are the risk factors affecting the success rate of cecal intubation in multilayer spiral CT simulation colonoscopy. Reference | Related Articles | Metrics

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Application of 3D-MSCT in Laparoscopic Radical Resection of Right Colon Cancer ZHANG Weixing, LI Gu'nan, XIAO Tiechen IMAGING SCIENCE AND PHOTOCHEMISTRY    2023, 41 (1): 59-63.   DOI: 10.7517/issn.1674-0475.221001 Abstract （195）   HTML （3）    PDF （545KB）（66）       Knowledge map    Save This study explored the application value of multi-slice spiral CT three-dimensional reconstruction (3D-MSCT) in laparoscopic radical resection of right colon cancer. Collected 100 patients with right colon cancer, among them there were 61 patients with 3D-MSCT before operation (the observation group) and 39 patients (control group) underwent routine CT examination. The preoperative T stage and N stage of the two groups were analyzed. The Kappa values of preoperative T stage and pathological stage in observation group and control group were 0.821 and 0.758, respectively ( P<0.05), and the Kappa values of preoperative N stage and pathological stage were 0.825 and 0.813, respectively, P<0.05. The accuracy of preoperative T stage in observation group and control group were 88.52% and 84.62%, and the accuracy of preoperative N stage was 90.16% and 89.74%, respectively, and there was no significant difference ( P>0.05). The operation time of the observation group was significantly shorter than that of the control group, and the intra-operative blood loss and the proportion of vascular injury were significantly lower than those of the control group ( P<0.05). The levels of serum gastrin (GAS) and motilin (MTL) in the observation group were significantly higher than those in the control group ( P<0.05), while the levels of cortisol (Cor) and adrenal corticotropin (ACTH) were significantly lower than those in the control group ( P<0.05). In laparoscopic radical resection of right colon cancer, multi-slice spiral CT three-dimensional reconstruction is helpful in providing comprehensive information for the operation, avoid accidental vascular injury, and have little impact on patients' body stress and gastrointestinal function. Reference | Related Articles | Metrics

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Application of Musculoskeletal Ultrasound, SMI Combined with SWE in the Observation of the Changes of Relevant Muscle Characteristics in Patients with NLBP HAO Zhenmin, GUO Zhenning, DENG Yuguang, WU Dongqian, ZHANG Shengnan IMAGING SCIENCE AND PHOTOCHEMISTRY    2023, 41 (1): 79-83.   DOI: 10.7517/issn.1674-0475.221007 Abstract （195）   HTML （5）    PDF （560KB）（82）       Knowledge map    Save This paper investigated the changes of related muscle characteristics and their clinical significance in patients with non-specific low back pain (NLBP) by musculoskeletal ultrasound, superb microvascular imaging (SMI) and real-time shear wave elastography (SWE). 200 patients with NLBP were selected as the NLBP group, and 100 healthy volunteers (without signs and manifestations of lumbar pain) were selected as the control group. SMI, SWE technology and musculoskeletal ultrasound were used to determine the injury, elastic modulus and thickness of external oblique muscle, transverse abdominis muscle, iliopsoas muscle, erector spinae muscle and multifidus muscle of the two groups. All NLBP patients received rehabilitation treatment, and the changes of elastic modulus and thickness of muscle groups were observed before and after rehabilitation treatment. The thickness measurement and elastic modulus of external oblique muscle, transverse abdominis muscle, iliopsoas muscle, erector spinae muscle and multifidus muscle in NLBP group were lower than those in control group ( P<0.05). After SMI examination, the positive rate of external oblique muscle, erector spinae muscle and multifidus muscle injury in NLBP group were all higher than those in control group ( P<0.05). The thickness measurement, thickness and elastic modulus of external oblique muscle, transverse abdominis muscle, iliopsoas muscle, erector spinae muscle and multifidus muscle in NLBP group after treatment were significantly higher than those before rehabilitation treatment ( P<0.05). NLBP patients have muscle atrophy and poor muscle elastic strength, musculoskeletal ultrasound, SMI and SWE can effectively observe the changes of muscle injury, atrophy and elastic strength in patients, and quantify the rehabilitation situation. Reference | Related Articles | Metrics