摘要
目的 探讨小肾癌 (直径≤ 3.0 cm)的超声声像图表现及其临床诊断价值。方法 回顾 2 8例经手术和病理证实的小肾癌的超声检查结果。与正常肾实质的回声比较 ,观察肿瘤回声水平并分为 5种声像图类型。同时观察肿瘤周缘回声征象。部分病例进行了彩超检查。结果 小肾癌的灰阶超声敏感性为 1 0 0 % ,特异性为2 8.6 % ,病灶最小直径仅为 1 .2 cm ,与其他影像学比较同样具有良好的敏感性 ;内部呈低回声和分隔囊状无回声以及周缘高回声可考虑为超声诊断小肾细胞癌的主要声像图特征。结论 灰阶超声对早期发现小肾细胞癌有较大帮助 ,联合彩超和 CT能更为提高小肾细胞癌的定性诊断准确率。
Objective To investigate the sonographic appearance of small (≤3 0 cm)renal cell carcinoma (RCC) and its clinical value.Methods Twenty eight patients with small RCC confirmed by operation and pathology were examined with ultrasound Compared with echogenicity of normal parenchyma,the levels of tumor echogenicity were divided into five grades Their internal and rim echogenicity were observed using gray scale ultrasonography.Some Patients were detected with color Doppler flow imaging.Results Gray scale ultrasound for small HCC had a sensitivity of 100%;specificity 28 6%.Hypoechoic and multicystic anechoic or hyperechoic rims were specific for detecting small renal cell carcinoma.The sonographic sensitivity of small RCC was as the same as that of other imagings such as CT and angiography.Conclusions Gray scale ultrasonography is helpful to early discover small RCCs.Combining color Doppler flow imaging and enhanced CT,it can improve the diagnostic accuracy rate of small RCCs.
出处
《中国超声诊断杂志》
2004年第3期184-187,共4页
Chinese Journal of Ultrasound Diagnosis
