本研究回顾性比较了钆剂动态增强磁共振成像的洗脱效应(“washout”)和超顺磁性氧化铁(SPIO)增强在小肝细胞癌的MRI表现。42例肝硬化病人共74个富血管小肝细胞癌病灶(5~30mm)进行了2种不同对比剂的增强MRI,评估在门脉期和平衡期钆剂动态增强MRI是否有洗脱效应(“washout”)以及SPIO This study retrospectively compared the MRI findings of gadolinium dynamic enhanced MRI (“washout”) and superparamagnetic iron oxide (SPIO) enhancement in small hepatocellular carcinoma. Forty-four patients with hepatocellular carcinoma (ACS) were enrolled in this study. Twenty-four patients with hepatocellular carcinoma (5-30 mm) had enhanced MR imaging of two different contrast media to assess whether there was an elution effect of dynamic contrast-enhanced Gd-MRI at the portal and in the balance “washout ”) and SPIO