肝脏占位性病变超声造影30例

目的 探讨肝脏占位性病变超声造影的声像学特征。方法 对30例肝脏占位性病变患者进行超声造影检查，实时观察声像图变化。结果 肝脏恶性肿瘤（除1例胆管细胞癌）均表现为动脉相增强，于门脉相及延迟相消退；肝血管瘤呈逐渐向心性填充式增强，延迟相缓慢消退，肝脏局部脂肪缺失于三期内无明显异常强化区，肝局灶性结节增生呈内部或中心向周边快速整体增强，于延迟相消退；肝脓肿呈周边增强，内部无增强；肝内坏死组织无增强，呈低回声。结论 肝脏占位性病变由于病理及血流供应的类型不同，造影时声像学有显著的差异，能够明显提高肿瘤的定性诊断率。

Contrast-enhanced Ultrasound for Focal Liver Lesions in 30 Cases

Objective To explore the ultrasonic characteristics of focal liver lesions with contrast-enhanced ultrasound. Methods 30 patients with focal hepatic lesions were examined by contrast-enhanced ultrasound, and the changes of ultrasonogram were observed. Results In patients with HCC （ except one ease of biliary cell carcinoma） , after injection of Sono Vue, the enhanced pattern appeared greatly and quickly in arterial phase, and disappeared in portal venous phase and delayed phase;Hepatic hemangioma showed centripetal filling enhancement, and slowly disappearance in the delayed phase; Liver focal fatty sparing showed no change during three phases;Focal nodular hyperplaslas showed radial centrifugal enhanced and disappearance in delayed phase; Hepatic abscess showed peripheral enhancement;Intrahepatic necrotic tissue showed no enhancement, and was always lower than the liver parenchyma, echo. Conclusions Because focal hepatic lesions have different types of pathology and blood supply, their echography features have significant difference. It can improve the diagnosis rate of focal hepatic lesions.