64排螺旋CT动态扫描对肾癌亚型诊断价值

目的:探讨64排螺旋CT动态增强扫描对肾癌亚型诊断价值,提高对肾癌的诊断准确率。方法:22例经手术病理证实的肾癌(其中透明细胞癌11例,乳头状癌4例,嫌色细胞癌7例)进行动态增强CT扫描。对CT图像资料进行分析,对肿瘤直径大小、强化程度与方式等情况进行分析。结果:乳头状癌的平扫期CT值与透明细胞癌和嫌色细胞癌差异均无统计学意义(P >0.05)。透明细胞癌的皮髓期、实质期及排泄期CT值均明显高于嫌色细胞癌和乳头状癌(P<0.01)。嫌色细胞癌和乳头状癌在平扫期、皮髓期、实质期及排泄期CT值差异均无统计学意义(P >0.05)。结论:不同的肾癌亚型强化程度具有一定特征性鉴别诊断价值。

Value of the dynamic scanning with 64-slice spiral CT in the diagnosis of the subtype of renal cell carcinoma

Objective:To explore the value of dynamic scanning with 64 slice spiral CT scan in the diagnosis of the subtype of renal cell carcinoma( RCC) ,and improve its diagnostic accuracy. Methods:Twenty-two patients with RCC diagnosed by pathology( including 11 cases of clear cell RCC,4 cases of papillary RCC and 7 cases of chromophobic cell RCC) were treated with dynamic enhancement scanning of 64 slice spiral CT. The tumor diameter, enhancement degree and mode were analyzed by CT imaging. Results:The differences of the CT value of plain scan between the papillary RCC,clear cell RCC and chromophobic cell RCC were not statistically significant(P>0. 05). The CT value in clear cell RCC during the corticomedullary phase,parenchymal phase and excrete phase were significantly higher than those in papillary RCC and chromophobic cell RCC(P <0. 01). The differences of the CT value between papillary RCC and chromophobic cell RCC during the corticomedullary phase, parenchymal phase and excrete phase were not statistically significant(P>0. 05). Conclusions:The enhance degree of different hypotype RCC has a certain diagnosis and differential diagnosis value in hypotype of RCC.