影像科学与光化学 ›› 2022, Vol. 40 ›› Issue (4): 725-729.DOI: 10.7517/issn.1674-0475.220315

• 综述与论文 • 上一篇    下一篇

CT在诊断肾结石合并脓肾及手术前定位中的应用

廖树彬, 杨东参, 苏晓琳   

  1. 广西防城港市第一人民医院泌尿外科, 广西 防城港 538021
  • 收稿日期:2022-03-10 发布日期:2022-07-09
  • 通讯作者: 廖树彬
  • 基金资助:
    广西壮族自治区卫生健康委员会自筹经费科研课题(Z20201383)

Application of CT in the Diagnosis of Nephrolithiasis Complicated with Pyonephrosis and Preoperative Localization

LIAO Shubin, YANG Dongshen, SU Xiaolin   

  1. Department of Urology, Fangchenggang First People's Hospital, Fangchenggang 538021, Guangxi, P. R. China
  • Received:2022-03-10 Published:2022-07-09

摘要: 本研究探讨CT在诊断结石性脓肾及手术前定位中的应用价值。采用临床随机研究模式选取拟实施手术治疗的肾结石合并脓肾患者165例,所有患者术前均接受CT检查,以手术结果作为金标准,其中,确诊肾结石合并脓肾患者78例、肾结石未合并脓肾患者87例,分析CT值在诊断肾结石合并脓肾中的价值。根据患者术前定位结石方式将78例脓肾患者分为CT组(39例,术前CT定位)和超声组(39例,术前超声定位),对比两种术前定位方法对手术结果的影响。结果显示,肾结石合并脓肾组的CT值、外周血白细胞(WBC)、C反应蛋白(CRP)均明显高于肾结石组患者(P<0.05);CT值、WBC、CRP诊断肾结石并发脓肾的灵敏度分别为87.81%、72.57%、77.96%,特异度分别为82.60%、76.04%、75.75%,AUC值分别为0.904、0.759、0.810;CT组患者的平均手术时间、平均碎石时间、血红蛋白(Hb)降低值均低于超声组(P<0.05);CT组结石清除率高于超声组(P<0.05);CT组和超声组患者的住院时间比较,差异无统计学意义(P>0.05)。肾结石合并脓肾的患者术前采用CT检查具有较高的诊断灵敏度,同时可采用CT实施结石定位,定位效果优于超声定位。

关键词: CT, 肾结石, 脓肾, 定位, 经皮肾镜碎石取石术

Abstract: This study investigated the application value of CT in the diagnosis of calculous pyonephrosis and preoperative localization. Selected 165 patients with nephrolithiasis complicated with pyonephrosis who were to undergo surgical treatment through randomized clinical study mode, all patients underwent CT examination before surgery. Using surgical results as the gold standard, among them 78 patients were diagnosed with nephrolithiasis complicated with pyonephrosis, and 87 cases were not with nephrolithiasis, analyzed the value of of CT in the diagnosis of nephrolithiasis complicated with pyonephrosis. According to the way of preoperative positioning of stones, the 78 patients with pyonephrosis were divided into CT group with 39 cases (preoperative CT localization) and ultrasound group with 39 cases (preoperative ultrasonic localization) and then compared the influence of two preoperative positioning methods on the surgical outcome. The results showed that the CT value, peripheral white blood cells (WBC), and C-reactive protein (CRP) of the kidney stone combined with pus kidney group were significantly higher than those of the kidney stone group (P<0.05). The sensitivity of CT value, WBC and CRP in the diagnosis of nephrolithiasis complicated with pyonephrosis were 87.81%, 72.57%, and 77.96%, respectively, and the specificity was 82.60%, 76.04%, and 75.75%, respectively,the AUC values were 0.904, 0.759, and 0.810, respectively. The mean operation time, mean lithotripsy time, and hemoglobin (Hb) decrease in the CT group were lower than those in the ultrasound group (P<0.05), the stone clearance rate in the CT group was higher than that in the ultrasound group (P<0.05). There was no significant difference in hospitalization time between the CT group and the ultrasound group (P>0.05). Preoperative CT examination has higher diagnostic sensitivity in patients with renal calculi and pyonephrosis, and CT can be used for calculus localization, and the localization effect is better than ultrasound localization.

Key words: CT, nephrolithiasis, pus kidney, localization, percutaneous nephrolithotomy