MR序列对脑实质型脑囊虫病不同时期病灶的显示  

Conventional MR sequences in detecting lesions of cerebral neurocysticercosis in different periods

作　　者：邱麟[1] 沈思[1] 胡锦波 张承志 刘斯润[1] 

机构地区：[1]暨南大学附属第一医院医学影像中心,广东广州510630 [2]云南省第四人民医院放射科,云南大理671000

出　　处：《中国医学影像技术》2012年第9期1637-1641,共5页Chinese Journal of Medical Imaging Technology

基　　金：国家自然科学基金(81060225)

摘　　要：目的探讨MR序列(T1W、T2W、T2FLAIR、DWI、EPI T2、增强T1W)对不同时期脑囊虫病灶检出的敏感性。方法回顾40例脑囊虫病患者的MR资料,分析各序列检出病灶的数目,并进行统计学处理。结果 T1W序列检出病灶62个(活虫期35个,变性坏死期25个,钙化期2个);T2W序列检出病灶78个(活虫期33个,变性坏死期36个,钙化期9个);FLAIR序列检出病灶115个(活虫期32个,变性坏死期75个,钙化期8个);DWI检出病灶33个(活虫期12个,变性坏死期16个,钙化期5个);EPI T2序列检出病灶69个(活虫期31个,变性坏死期29个,钙化期9个);增强T1W序列检出病灶225个(活虫期23个,变性坏死期200个,钙化期2个)。结论 MR序列中,增强T1W和FLAIR序列对脑囊虫病活虫期和变性坏死期病灶检出优于其他序列;T1W结合EPI T2序列对发现灰白质内的囊虫钙化灶较FLAIR和T1W序列更具优势。Objective To observe the sensitivity of several MR sequences （T1W, T2W, T2 FLAIR, DWI, EPI T2, CET1W sequence） in detecting lesions of cerebral neurocysticercosis in different periods. Methods MRI data of 40 patients with neurocysticercosis were reviewed. The number of lesions detected by the sequences was analyzed and statistically compared. Results Sixty-two lesions were detected by TlW （35 alive cysticercus lesions, 25 degeno-death stage lesions and 2 calcification stage lesions）, 78 were detected by T2W （33 alive cysticercus lesions, 36 degeno-death stage lesions and 9 calcification stage lesions）, 115 lesions were detected by FLAIR （32 alive cysticercus lesions, 75 degeno-death stage lesions and 8 calcification stage lesions）, 33 were detected by DWI （12 alive cysticercuslesions, 16 degeno-death stage lesions and 5 calcification stage lesions）, 69 lesions were detected by EPI T2 （31 alive cysticercus lesions, 29 degeno-death stage lesions and 9 calcification stage lesions）, while 225 lesions were detected by CETlW sequence （23 alive cysticercus lesions, 200 degeno-death stage lesions and 2 calcification stage lesions）. Conclusion CETlW and FLAIR sequence are both more sensitive than other sequences in detecting alive cysticercus lesions and degeno-death stage lesions. Compared with FLAIR or T1W sequence, combination of T2W and EPI T2 are better in detecting cysticercosis calcification within gray matter.

关 键 词：磁共振成像 脑囊虫病 

分 类 号：R445.2[医药卫生—影像医学与核医学] R74[医药卫生—诊断学]