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《Chinese Journal of Ultrasonography》 2003-01
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Contrast-enhanced color Doppler ultrasonography in diagnosis of liver tumors

WANG Wen-ping,QI Qing,JI Zheng-biao,et al.Department of Diagnostic Ultrasound,Zhongshan Hospital,Fudan University,Shanghai 200032,China  
Objective To evaluate the role of contrast-enhanced color Doppler ultrasonography with Levovist in the diagnosis of liver tumors.Methods One hundred and twenty-five patients with 126 hepatic solid lesions were examined by conventional color Doppler and contrast enhanced ultrasonography.All hepatic lesions were confirmed by pathology.Of these,79 cases with hepatocellular carcinoma,4 cases with metastatic liver carcinoma,13 cases with hemangioma,7 cases with inflammatory pseudotumor of liver,7 cases with focal nodule hyperplasia,and 15 cases with other benign lesions.The Levovist with a concentration of 400 mg/ml was injected into an antecubital vein within approximately 2 minutes.Results All hepatic solid lesions with blood supply were differently enhanced by contrast-ultrasonography (I~IV grades).The color flow signals with grade III and grade IV were detected in one malignant lesion before contrast-enhancement and in 41 malignant lesions ( 49.4%) after contrast-enhancement.The color flow signals were detected by contrast-enhanced sonography in 26 malignant lesions ( 92.8%) with no color Doppler signals and in 33 benign lesions ( 76.7%).The mean resistive index of liver cancer group was much higher than that of benign lesion group before and after contrast-enhancement.The accuracy rate for diagnosing liver tumors was raised from 66.7% (84/126) in pre-enhancement to 94.4% (119/126) in post-enhancement.Conclusions The contrast-enhanced color Doppler ultrasonography is very useful in the differential diagnosis of liver tumors.
【Fund】: 上海市教委科研基金资助 (2 0 0 0QN1 0 )
【CateGory Index】: R735.7
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