肾乳头状细胞癌的超声造影特征分析并与增强CT对照研究

Contrast-enhanced ultrasound of renal papillary cell carcinomas compared to contrast-enhanced CT

目的探讨超声造影与增强CT在肾乳头状细胞癌诊断中的应用价值。方法分析12例肾乳头状细胞癌的超声造影及增强CT的增强特征,并比较两者敏感性、假包膜显示率、坏死区显示率。结果肾乳头状细胞癌超声造影模式主要为"慢进"、增强程度为低增强;增强CT主要表现为轻度强化或不强化;两者的敏感性及假包膜显示率无统计学差异,超声造影坏死区显示率高于增强CT。结论超声造影结合增强CT有助于肾乳头状细胞癌的诊断与鉴别诊断。

Objective To evaluate the value of contrast-enhanced ultrasound and contrast-enhanced CT for diagnosing the renal papillary cell carcinomas. Methods The imaging characteristics of contrast-enhanced ultrasound and contrast-en hanced CT in 12 patients with renal papillary cell carcinomas were retrospectively analyzed, and the sensitivity, the pseudocapsule display rate, necrosis penetrance were compored. Results Ultrasound imaging of papillary renal cell carcinoma model was mainly for the ＂slow progress＂, and showed slight enhancement; enhanced CT mainly showed mild enhancement or non-enhanced. There was no significant difference in the sensitivity and the pseudocapsule display rate of the contrast-enhanced ultrasound and contrast-enhanced CT, the necrosis penetrance of contrast-enhanced ultrasound was higher than contrast-enhanced CT. Conclusion Contrast-enhanced ultrasound combined with contrast-enhanced CT is useful for the diagnosis and differential diagnosis of papillary renal cell carcinoma.