颅脑常见弥散受限类疾病MRI特点  

MRI Features of Common Diffusion-Limited Diseases of the Skull

作　　者：王丹[1] 王茹茹 田卫卫 沈善昌 张强[1] 姜兴岳[1] WANG Dan;Wang Ru-ru;TIAN Wei-wei;SHEN Shan-chang;ZHANG Qiang;JIANG Xing-yue(Department of Radiology,Affiliated Hospital of Binzhou Medical College,Binzhou 256699,Shandong Province,China)

机构地区：[1]滨州医学院附属医院放射科,山东滨州256699

出　　处：《中国CT和MRI杂志》2023年第4期7-9,18,共4页Chinese Journal of CT and MRI

摘　　要：目的 分析颅脑弥散受限类疾病的MRI表现,提高弥散受限疾病定性诊断的准确性。方法 回顾性分析滨州医学院附属医院收治的颅脑常见弥散受限类疾病MRI特点,扫描序列为T1WI、T2WI、T2 Flair、DWI等检查;观察病变发生部位、形态、范围、边界、信号特征等。结果 颅脑弥散受限疾病有一定的特征,低血糖脑病(4例),好发于双侧顶枕叶;NKH-CB(4例),受累区域主要是基底神经节,壳核最多见,其次为尾状核;线粒体脑肌病(4例),无明显的对称性分布的特点;CO中毒迟发性脑病(11例),双侧苍白球、脑室周围白质;疱疹病毒性脑炎(23例),好发于颞叶及边缘系统;酒精中毒性脑病(2例),导水管周围灰质、乳头体及内侧丘脑对称性分布;肝性脑病(1例),双侧基底节区弥散受限。结论 根据颅脑弥散受限疾病的MRI特点,结合患者的临床症状和实验室检查,大大提高颅脑弥散受限疾病的诊断准确性。Objective To analyze the MRI manifestations of diffusion-limited diseases in the brain,and to improve the accuracy of qualitative diagnosis of diffusion-limited diseases.Methods The MRI characteristics of common diffusion-limited diseases of the brain in the Affiliated Hospital of Binzhou Medical College were retrospectively analyzed,and the scanning sequences were T1WI,T2WI,T2 Flair,DWI,etc.;the location,shape,scope,boundary,signal characteristics,etc.of the lesions were observed.Results Cranial diffusion restricted disease had certain characteristics.Hypoglycemic encephalopathy(4 cases)was most common in bilateral parieto-occipital lobes;NKH-CB(4 cases)mainly involved the basal ganglia,and the putamen was the most common.Followed by the caudate nucleus;CO poisoning delayed encephalopathy(11 cases),bilateral globus pallidus,periventricular white matter;herpesvirus encephalitis(23 cases),mainly in the temporal lobe and limbic system;mitochondrial encephalopathy(4 cases),no obvious symmetrical distribution characteristics;alcohol Toxic encephalopathy(2 cases),symmetrical distribution of periaqueductal gray matter,mammillary body and medial thalamus;hepatic encephalopathy(1 case),restricted diffusion in bilateral basal ganglia.Conclusions According to the MRI characteristics of craniocerebral diffusion limited diseases,combined with the clinical symptoms and laboratory examinations of patients,the diagnostic accuracy of craniocerebral diffusion limited diseases can be greatly improved.

关 键 词：颅脑 弥散受限 磁共振成像 诊断 

分 类 号：R445.2[医药卫生—影像医学与核医学]