胼胝体病变分布特点的MRI分析  

MRI analysis of distributing characteristics of corpus callosum lesions

作　　者：李莹[1] 徐坚民[1] 孙黎明[1] 

机构地区：[1]深圳市人民医院(暨南大学第二附属医院)放射科,广东518020

出　　处：《放射学实践》2004年第6期389-391,共3页Radiologic Practice

摘　　要：目的 :总结各类胼胝体病变的MRI影像分布特点。方法 :68例经证实并行MRI检查的各种胼胝体病变按是否仅局限在胼胝体 ,横轴面上胼胝体区病灶是否按中线分布 ,胼胝体病灶的前后位置 ,胼胝体外脑内病灶是否左右对称分别分组 ,分析各种病变分布上有无特点。结果 :① 68例病变中 17例局限于胼胝体 ,5 1例合并胼胝体外脑内病灶。②胼胝体区病灶 5 6例为中线分布 ,12例为偏侧分布。③ 7例脑轴索损伤 ( 7/11) ,6例肾上腺脑白质营养不良 ( 6/6) ,3例脂肪栓塞 ( 3 /3 ) ,4例海洛因脑病 ( 4/4 ) ,1例病毒性脑炎 ( 1/2 )累及胼胝体压部。 6例胶质母细胞瘤 ( 6/10 )累及胼胝体前部。④非局限组中 3 6例 ( 3 6/5 1)脑内病灶为对称和基本对称分布。结论Objective:To summarize the MRI distributing features of corpus callosum lesions.Methods: 68 cases of corpus callosum lesions were grouped according to their localization, their situation with the midline, and the front and back distribution.Results:①68 cases of corpus callosum lesions after MRI examination were proved by clinic and /or pathology. 17 of 68 cases were focal lesions,and 51 cases were combined with other lesions in the brain.②56 cases were localized in the midline,and 12 cases showed hemilateral distribution. ③There were 7 cases of diffuse axonal injury (7/11), 6 cases of adrenoleukodystrophy (ALD),3 cases of fat embolism of brain(FEB),4 cases of encephalopathy after herion vapor inhalation,one of virus encephalitis (1/2) involving the splenium of corpus callosum,and 6 cases of astrocytoma occurring in the foreside of corpus callosum.Conclusion:Different corpus callosum lesions have their distributing features.

关 键 词：胼胝体 MRI 并发症 轴索损伤 

分 类 号：R445.2[医药卫生—影像医学与核医学]