目的探讨MRI联合多层螺旋CT对 肝性脑病的诊断价值。方法 对临床确诊 的15例肝性脑病患者的MRI及多层螺旋CT 影像资料进行回顾性分析。结果 急性肝 性脑病3例，2例MRI T1WI表现为双侧基底 节苍白球区、中脑腹侧高信号，T2WI未显 示异常信号，螺旋CT呈等密度改变，1例 MRI及CT表现为弥漫性脑水肿改变。慢性 肝性脑病12例，T1WI像显示双侧基底节 苍白球区高信号10例、中脑腹侧高信号6 例，垂体前叶高信号4例，T2WI未显示异 常信号，MRI及CT显示脑萎缩改变8例。结 论 MRI联合螺旋CT对肝性脑病诊断具有重 要临床价值。

Objective To evaluate the diagnostic value of MRI and muti-slice CT in hepatic encephalopathy. Methods The MRI ang MSCT findings of 15 patients with hepatic encephalopathy were retrospectively analyzed. Results There were 3 cases of acute hepatic encephalopathy. Bilateral basal ganglia area globus pallids, midbrain and anteriorpituitary lobes were showed symmetrical high signal intensity on T1WI and normal appearances on T2WI and equal density on MSCT in 2 cases of acute hepatic encephalopathy. The other cases demonstrated diffuse brain edema on MRI and MSCT. There were 12 cases of chronic hepatic encephalopathy. 10 cases high signal intensity on T1WI were found in bilateral basal ganglia area globus pallid, 9 cases high signal intensity on T1WI were found in the midbrain and 4 cases high signal intensity on T1WI were found in the anterior pituitary lobes. They were normal appearances on T2WI. There were 8 cases of brain atrophy on MRI and MSCT. Conclusion MRI and MSCT has an important value to the diagnosis of hepatic encephalopathy.