超声造影对肝内高回声病变的鉴别诊断价值

Contrast-enhanced ultrasound for differential diagnosis of hyperechoic liver lesions

目的探讨超声造影对肝内高回声病变的诊断价值。方法应用常规超声与超声造影检查66例84个肝内高回声病变。结果对于鉴别良恶性诊断，经ROC曲线分析，常规超声曲线下面积0．867±0．045，超声造影曲线下面积0．997±0．003，超声造影提高了诊断效能（P〈0．0001）。常规超声对病灶类型正确诊断率为64．3％，超声造影正确诊断率为92．9％。结论超声造影提高了对肝内高回声病变的鉴别诊断水平。

Objective To assess the value of contrast-enhanced ultrasound（US） in differential diagnosis of hyperechoic hepatic lesions when compared to conventional US. Methods Eighty-four hyperechoic liver lesions in 66 patients were examined using both conventional and contrast-enhanced US techniques. Results Receiver operating characteristic analysis revealed a significant improvement in the discrimination of malignant versus benign hyperechoic hepatic lesions （area under the receiver operating characteristic curve, 0. 867±0.045 at conventional US, 0.997±0.003 with contrast-enhanced US （P〈0.0001）. For correct diagnoses types of hyperechoic liver lesions, contrast-enhanced US improved from 64.3% to 92.9 %,compared with conventional US （P〈0.001）. Conclusions Contrast-enhanced US showed a significant improvement in characterization and differentiation of hyperechoic hepatic lesions when compared to conventional US.