增强CT参数在鉴别肾脏良恶性肿瘤中的初步研究

doi:10.7517/issn.1674-0475.210505

摘要/Abstract

摘要： 本研究探讨在肾脏良恶性肿瘤鉴别中增强CT扫描参数的价值。选取肾脏肿瘤患者66例，均给予增强CT扫描，其中，恶性肿瘤30例，良性肿瘤36例；恶性组平扫期病灶CT值、平扫期相对肾皮质校正CT值、排泄期相对肾皮质校正CT值明显低于良性组（P<0.05），恶性组平扫期灰度值比率明显高于良性组（P<0.05）；平扫期病灶CT值、平扫期灰度值比率、平扫期相对肾皮质校正CT值、排泄期相对肾皮质校正CT值诊断肾脏恶性肿瘤的ROC曲线下面积分别为0.732、0.731、0.772和0.843，P<0.05；将平扫期病灶CT值、平扫期灰度值比率、平扫期相对肾皮质校正CT值、排泄期相对肾皮质校正CT值建立Logistic回归，其诊断恶性肿瘤的ROC曲线下面积为0.940，P<0.05。增强CT参数在鉴别肾脏良恶性肿瘤中有较好的应用价值。

关键词: 增强CT, 肾脏, 肿瘤, 良恶性

Abstract: This study explored the value of enhanced CT scan parameters in differentiating benign and malignant renal tumors. 66 patients with renal tumors were selected, all patients were given enhanced CT scanning, 30 were malignant and 36 were benign. The CT value of lesions, the relative renal cortex corrected CT value and the relative renal cortex corrected CT value in the excretion phase in the malignant group were significantly lower than those in the benign group (P<0.05), and the gray value ratio in the malignant group was significantly higher than that in the benign group (P<0.05). The area under the ROC curve of CT value, gray value ratio, relative renal cortex corrected CT value and relative renal cortex corrected CT value in the diagnosis of renal malignant tumor were 0.732, 0.731, 0.772 and 0.843, respectively, P<0.05. Logistic regression was established for lesion CT value, grayscale value ratio, relative cortical corrected CT value in plain scan period and relative cortical corrected CT value in excretory period, the area under the ROC curve of this model for the diagnosis of renal malignant tumor was 0.940, P<0.05. The parameters of enhanced CT have a good application value in the differential diagnosis of benign and malignant renal tumors.

Key words: enhanced CT, kidney, tumor, benign and malignant

张庆林, 庄梅香, 罗雪萍. 增强CT参数在鉴别肾脏良恶性肿瘤中的初步研究[J]. 影像科学与光化学, 2021, 39(6): 845-848.

ZHANG Qinglin, ZHUANG Meixiang, LUO Xueping. Preliminary Study of Enhanced CT Parameters in Differential Diagnosis of Benign and Malignant Renal Tumors[J]. IMAGING SCIENCE AND PHOTOCHEMISTRY, 2021, 39(6): 845-848.

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