摘要
目的探讨液体衰减反转恢复(FLAIR)序列在脑室系统中的应用价值。方法对60例患者均进行FLAIR序列和FSE-TWI检查,比较两种序列2对病灶的显示能力。结果60例中,属脑室系统正常变异者14例,交通性脑积水5例,梗阻性脑积水10例,室管膜瘤2例,侧脑室内脑膜瘤1例,亚急性脑室内出血2例,脑白质脱髓鞘疾病20例,侧脑室旁腔隙性脑梗塞3例,小脑髓母细胞瘤2例,血管母细胞瘤1例。以上疾病的病灶,在FLAIR序列上均能显示,并可清晰显示边界;但在TWI上虽可显示有些病2灶,但边界不清。结论FLAIR序列能够抑制脑脊液的信号,提高脑室内、脑室旁病灶的对比度,对脑室内及脑室旁病变的显示较FSE-TWI优2越。
Objective To evaluate the value of fluid-attenuated inversion recovery(FLAIR) sequences in ventricular system. Methods MRI scans with FSE-T2 sequence and FLAIR sequence were respectively performed in 60 patients, and their abilities of detecting lesions were compared. Results FLAIR inhibited the signals of the cerebrospinal fluid and presented a clearer comparison of the periventracular and intraventricular lesions. Conclusion FLAIR sequence was superior to FSE-T2 weighted sequences in identifying periventracular and intraventricular lesions.
出处
《中国CT和MRI杂志》
2005年第1期11-13,共3页
Chinese Journal of CT and MRI
