Stark D D, Hahn P F, Trey C, Clouse M E, Ferrucci J T
AJR Am J Roentgenol. 1986 Jun;146(6):1141-8. doi: 10.2214/ajr.146.6.1141.
Five of six patients with angiographically proved Budd-Chiari syndrome (hepatic venous outflow obstruction) showed multiple specific MRI abnormalities: striking reduction in caliber or complete absence of the hepatic veins, "comma-shaped" intrahepatic collateral vessels, and/or marked constriction of the intrahepatic inferior vena cava. The sixth patient had angiographically proven sinusoidal hepatic venous obstruction and patent central hepatic veins; MRI showed ascites but revealed no specific features of the Budd-Chiari syndrome. Patients with end-stage cirrhosis also showed compressed, distorted hepatic veins; however, these cirrhotic livers were distinguished by their small size, nodular surface, and extrahepatic collateral varices. In patients without cirrhosis or the Budd-Chiari syndrome, normal hepatic, portal, and inferior caval veins were routinely seen when technically adequate MRI examinations were obtained (94 of 100 cases). Four of the six patients with Budd-Chiari syndrome had been treated surgically. In three, MRI identified patent portocaval shunts. In the fourth, angiographically confirmed shunt stenosis was demonstrated by MRI.
六例经血管造影证实患有布加综合征（肝静脉流出道梗阻）的患者中，有五例表现出多种特定的MRI异常：肝静脉管径显著变细或完全缺失、“逗号状”肝内 collateral 血管以及/或肝内下腔静脉明显狭窄。第六例患者经血管造影证实为窦性肝静脉梗阻且肝中央静脉通畅；MRI显示有腹水，但未发现布加综合征的特异性特征。终末期肝硬化患者也表现出肝静脉受压、扭曲；然而，这些肝硬化肝脏的特点是体积小、表面结节状以及肝外 collateral 静脉曲张。在没有肝硬化或布加综合征的患者中，当获得技术上足够的MRI检查时，通常可以看到正常的肝静脉、门静脉和下腔静脉（100例中有94例）。六例布加综合征患者中有四例接受了手术治疗。其中三例中，MRI显示门静脉-腔静脉分流术通畅。第四例中，MRI显示血管造影证实的分流狭窄。
