Clinical Study of Real Time Contrast-enhanced Ultrasound on Differential Diagnosis of Focal Liver Lesions

Objective:To evaluate the availability and significance of real time contrast-enhanced ultrasound on diffe-rential diagnosis of focal liver lesions.Methods:Real time contrast-enhanced ultrasound was used for differential diagnosis of focal liver lesions in 269 cases.Results:92.4% of malignant focal liver lesions showed echo enhancement during the arterial phase.Lesions with hyper-or iso-enhancement during arterial phase then subsided to hypo-or non-enhancement in late phase,the benign focal liver lesions was 13.8%(19/138)whereas the malignant focal liver lesions was 94.7%(124/131).In this study the sensitivity,specificity and accuracy of diagnosis of focal liver lesions with real time contrast-enhanced ultrasound were 89.6%,97.5% and 93.2% respectively.Conclusion:Real time contrast-enhanced ultrasound is sensitive and accurate in demonstrating hemodynamic features of focal liver lesions,and it can be a promising technique on differential diagnosis of focal liver lesions.