脑囊虫病18例MRI的诊断分析

目的:探讨MRI诊断脑囊虫病分期的价值。方法:对18例脑囊虫患者MRI影像进行回顾性分析。结果:脑囊虫病分为三期:囊虫存活期10例,此期特征是头节、囊壁和囊液并存,T1WI表现为圆形低信号内小点样中等信号影,T2WI囊腔为高信号;囊虫变性期5例,头节消失,囊腔胀大,大小不均,囊周围出现水肿带,T1WI为不均匀低信号,T2WI呈为高信号;囊虫死亡期3例,虫体死亡后发生钙化或纤维化,T2WI呈小圆形边界清楚的低信号,T1WI呈等信号或低信号。结论:MRI对于不同时期的脑囊虫病诊断价值较高,反映脑囊虫病的病理学过程,对鉴别诊断及指导临床治疗有重要意义。

Analysis of MRI in 18 cases with brain cysticercosis

Objective:To analyze MRI diagnostic value in different period brain cysticercosis. Methods:The MRI appearance feature of 18 example brain cysticercosis in correspond brain cysticercosis diagnostic criteria were retrospectively analyzed. Results:According to MRI feature to take brain cysticercosis to divide three stage:bladder worm survival time(10 cases),scolex and capsule wall and hydatid fluid concomitance is characteristic,dot moderately signal inside round low signal in T1WI,capsular space shows high signal in T2WI;bladder worm denaturation time(5 cases),scolex vanishing and capsular space swollen and bladder surrounding appear oedema zone is characteristic,capsular space shows uneven low signal in T1WI;capsular space shows high signal in T2WI;bladder worm death time(3 cases),polypide death proceed calcify and fibering,equal signal or low signal in T1WI,small round low signal with sharply defined in T2WI; Conclusions:The MRI is an ideal method of diagnosis of every stage brain cysticercosis.MRI is able to reflect pathology process of brain cysticercosis,differential diagnosis and guide clinical therapy.