脑白质稀疏症的CT与临床研究

目的：探讨脑白质稀疏症的发病机理及CT表现与临床症状的关系。方法：分析124例脑白质稀疏症的CT及临床表现。结果：脑白质稀疏症的CT可表现为双侧侧脑室枕角周围对称性低密度和/或双侧侧脑室额角周围低密度、双侧侧脑室周围斑片状对称性低密度或脑白质弥漫性低密度。本病可合并基底节、丘脑腔隙性梗塞及出血。结论：脑白质稀疏症多发于双侧侧脑室枕角周围，也可以发生在双侧侧脑室额角周围，在严重病例可累及双侧侧脑室周围部分或全部脑白质区。本病病理表现为双侧侧脑室周围脑白质脱髓鞘，脑白质的供血特点、年龄的增长、高血压为脱髓鞘的主要原因。

CT and clinical research of leukoaraosis

Objective:To evaluate pathogenesis of Leukoaraosis,relation between CT presentation and clinical symptom in leukoaraosis.Methods:To analyse CT presentation and clinical symptom in the Leukoaraosis of 124 cases.Results:The CT presentation of Leukoaraosis may be symmetrical low density of surrounding occipital horn of bilateral ventricle and/or surrounding frontal horn of bilateral ventricle,symmetrical low density surrounding frontal ventricle or diffused low density of white matter.This disease could be combined with lacunar infarction of basic ganglion,thalamus and hemorrhage.Conclusion:Leukoaraosis often occur in surrounding occipital horn and frontal horn of bilateral ventricle;In serious case,could involved part or all white matter of peri-ventricles.The pathology of the disease is related to demyelination of brain white matter,The blood supplying of the white matter,increase of age,hypertension is the main pathologic process of the demyelination.