肝性脑病楔前叶的影像学研究进展

肝性脑病(HE)是一种可逆性神经精神异常综合征，发病率较高。目前关于HE诊断的相关研究主要致力于寻找神经系统异常的生物标志物。采用多种功能成像技术可以观察到HE病人楔前叶（PC）存在结构、功能等异常，且PC的异常程度与HE病人临床表现、认知功能测试结果及生化指标密切相关。就静息态功能MRI（rs-fMRI)、扩散张量成像（DTI）、MR波谱成像（MRS）等成像技术对HE病人PC的改变及其特点的研究进行综述。

The advance of precuneus changes in hepatic encephalopathy by medical imaging technique

Hepatic encephalopathy (HE) is a reversible spectrum of neuropsychiatric abnormalities with a high incidence.The related research is mainly engaged in searching for its biomarkers of neurological dysfunction. A variety of MRI techniques can be used to observe the presence of structural and functional abnormalities in the precuneus(PC) of HE patients, and the degree of abnormal PC is closely related to the clinical performance, cognitive function test results and biochemical indicators of HE patients. Here's a review of the changes of PC in HE and their characteristics by resting-state functional magnetic resonance,diffusion tensor imaging and MR spectrophy.