【摘要】 目的观察肝脏占位性病变超声造影后的特点,评估超声造影检查对肝脏占位性病变诊断的临床价值。方法回顾性分析70例共91个病灶的超声造影表现。结果原发性肝癌(HCC)动脉相早期呈整体增强,呈快进快出高增强;转移性肝癌动脉相早期周边先环状强化或直接整体强化,门脉相及延迟相迅速消退,呈"黑洞"征表现;胆管细胞癌动脉相早期周边开始强化,至门脉相早期强化范围进一步扩大,呈慢进快出高增强。肝血管瘤呈典型的慢进慢出高增强,肝腺瘤呈快进慢出低增强,肝脓肿呈网格状快进快出低增强。局灶性结节性增生表现为"轮辐状"快进慢出高增强,不均质脂肪肝及肝硬化结节呈等增强,其增强方式与周围肝实质一致。结论不同肝脏占位性病变有不同的超声造影特点,超声造影检查有助于肝脏占位性病变的鉴别诊断。更多还原

【Abstract】 Objective Observe the characteristics of local liver lesions with contrast-enhanced ultrasound(CEUS),and evaluate the clinical value of CEUS on the local liver lesions.Methods There are 70 cases with 91 lesions.All cases undergo real-time harmonic CEUS.The enhancement of characteristics and time in deferent lesions are observed.Results The hepatocellular carcinomas enhancement style is homogeneous in early stage,and has quickly in,quickly out type of hyper-enhancing.The liver metastasis enhancement style is peripheral or homogeneous in arterial phase early stage,and retreat quickly in portal-venous and late phase,which has classical"black hole"style.The cholangiocellular carcinomas enhancement style is peripheral in arterial phase early stage,and the enhancing area and intensity increase in early portal-venous phase,which has slow in,quickly out type of hyper-enhancing.In the liver benign tumor,the hepatic hemangiomas classical enhancement style is slow in,quickly out hyper-enhancing,the hepatic adenoma enhancement style is quickly in,slow out hypo-enhancing,the hepatic abscesses showed quickly in,quickly out mesh liked hypo-enhancing,FNH showedcentral has wheel-shaped quickly in,slow out hyper-enhancing.The non-uniform fatty livers,and cirrhotic regenerative nonules are iso-enhancing,their enhancement style is similar to normal liver tissues around them.Conclusion Different liver lesions show different characteristic enhancement patterns in CEUS and enhanced ultrasound which is helpful to diagnose various liver lesions.更多还原