中文摘要：

目的：本研究旨在比较超声造影（CEUS）和增强CT（CECT）在肾癌病灶中的诊断价值,探讨超声造影在肾癌的诊断价值。方法：对54例患者临床诊断为肾脏内占位性病灶进行CEUS和CECT检查,通过分析病灶CEUS和CECT的特点,比较两种方法的诊断效能。结果：54个病灶中34个为肾脏恶性肿瘤,20个为肾脏良性病灶,CEUS和CECT诊断敏感性、特异性、准确性、阳性预测值、阴性预测值分别为97.05%、85.0%、92.59%、91.67%、94.44%与91.18%、80.00%、87.04%、88.57%、84.21%。两种方法诊断差异无统计学意义（P〉0.05）。结论：分析比较CEUS和CECT在诊断肾癌过程中,两种方法诊断效能无明显差异,均能为临床诊断提供重要依据,但CEUS对微循环灌注方面及假包膜的观察优于CECT;CEUS定量评价肾肿瘤血管现处于动物实验阶段,临床上特异指标的找寻仍有待于进一步研究。

英文摘要：

Objective：Compared contrast-enhanced ultrasound（CEUS） with contrast-enhanced CT（CECT） in diagnosis of renal lesions,this study was to evaluate the diagnostic value of contrast-enhanced ultrasound in renal lesions.Methods：A total of 54 patients underwent CEUS and CECT respectively.The diagnostic efficiency of two techniques were compared by evaluating features of different phase.Results：Of 54 renal lesions,34 lesions were malignant and 20 were benign.Overall,the diagnostic sensitivity,specificity,diagnostic accuracy,positive predictive value and negative predictive value were 97.05%,85.0%,92.59%,91.67%,94.44% for CEUS and 91.18%,80.00%,87.04%,88.57%,84.21% for CECT respectively.It was no significant statistical difference between two means（P0.05）.Conclusion：There is no statistical difference in the diagnostic efficiency and the accuracy between CEUS and CECT in diagnosis of renal lesions.However,CEUS is better than CECT in diagnosis of abnormal renal structure and the microcirculation perfusion.The quantitative evaluation of renal tumor blood vessels by CEUS is still in animal experiments,the clinical stages of specific indexes remain for further research.