超声造影在小肾癌诊断中的价值探讨

目的：探讨超声造影在小肾癌诊断中的价值，提高小肾癌的诊断和治疗水平。方法：回顾性分析了2005年6月-2007年12月间我院收治的35例小肾癌患者B超、CT、IVP、MRI的影像学特征，并对35例小肾癌患者进行了超声造影检查，将超声造影对小肾癌的诊断与病理检查结果进行对比，与增强CT扫描结果进行对比，以探讨超声造影对小肾癌的诊断价值。结果：B超诊断小肾癌的准确率为82．9％，CT诊断小肾癌的准确率为91．7％，MRI诊断小肾癌的准确率为90．4％。超声造影检查35例小肾癌患者共发现36个病灶（有1例患者为左侧多发）。超声造影诊断小肾癌的灵敏度为97．1％，特异度为100％，阳性预测值为100％，阴性预测值为50％，准确率为97．2％。结论：小肾癌的早期诊断主要依赖B超和CT等影像学检查。B超是筛选小肾癌的首选方法；螺旋增强CT可为小肾癌定性、定位诊断提供重要参考价值。超声造影对小肾癌诊断的灵敏度、特异度、阳性预测值和诊断准确率均较高，对小肾癌的诊断具有较高的价值。

The Value of Diagnosis for Small Renal Carcinoma by Ultrasonic Contrast

Objective：To evaluate the value of diagnosis by ultrasonic contrast in small renal carcinoma, and to improve the diagnosis of small renal carcinoma. Methods： 35 cases of small renal carcinoma from June 2005 to December 2007 in our hospital were reviewed to analyse the various kinds of imaging characteristic of ultrasonic, CT, IVP ,MRI and ultrasonic contrast, and summarize the diagnostic experiences in such disease. Compared the diag hosts consequence between ultrasonic contrast and pathologic diagnosis. Compared the diagnosis consequence between ultrasonic contrast and enhanced CT. Evaluated the diagnosis value of ultrasonic contrast for small renal carcinoma. Results： In all cases the diagnosis accurate rate for small renal carcinoma： ultrasonic 82.9%, CT 91.7%, MRI 90.4%. 35 cases of small renal carcinoma were examined by ultrasonic contrast： sensitivity 97.1%, specificity 100%, positive predictive value 100%, negative predictive value 50%, accurate rate 97.2%. Conclusions：The early diagnosis of small renal carcinoma mainly depends on ultrasonic and CT. Ultrasonic is the first-election for screening small renal carcinoma, multislice spiral CT offers the important reference value for the qualiration and level diagnosis of small renal carcinoma. Ultrasonic contrast possess higher sensitivity, specificity, positive predictive value and accurate rate for the diagnosis of small renal carcinoma. Ultrasonic contrast has a excellent diagnostic value in 35 cases of small renal carcinoma.