肝小静脉闭塞症的超声征象及其鉴别诊断

目的：探讨肝小静脉闭塞症（hepatic veno-occlusive disease，HVOD）超声征象及其临床价值。方法回顾性分析19例经肝穿刺活检病理组织学检查诊断为HVOD患者的超声征象，观察肝脏灰阶征象、肝血流显像、胆囊、脾及腹腔积液量等。结果19例HVOD患者超声多表现为肝脏体积增大、尾状叶不大，肝区回声强弱不均，不同程度门静脉高压，肝静脉变细、肝动脉阻力指数增高、侧支循环形成，胆囊壁增厚呈双边影，脾大及不同程度的腹腔积液。结论超声征象可为HVOD早期诊断及鉴别诊断以及及时治疗提供重要的临床价值。

Characteristics of hepatic veno-occlusive disease on ultrasonography and its differential diagnosis

ObjectiveTo explore the characteristics of hepatic veno-occlusive disease (HOVD) on ultrasonography and its clinical value.MethodsNineteen patients with HOVD diagnosed by pathobiology were examined by ultrasonography. The imaging characteristics of liver, hepatic vein (HV), portal vein (PV), hepatic artery (HA), inferior vena hepatic vein (HV), portal vein (PV), hepatic artery (HA), inferior vena cava (IVC), gallbladder, spleen and volume of ascite were observed.ResultsThe feature of HOVD examined by ultrasonography included several aspects, such as, hepatomegaly, the uneven echo of hepatic zones, portal vein hypertension on different levels, attenuate of HV, artery resistance index increased, formation of HV collateral circula, thickened of the gallbladder wall, splenomegaly and ascites. ConclusionUltrasonography provide a considerable aid to the diagnosis and differential diagnosis of HOVD.