摘要
对76例脑部疾病患者进行快速液体衰减反转恢复序列穴fluidattenuatedinversionrecovery熏FLAIR雪序列及常规快速自旋回波穴fastspinecho,FSE雪序列扫描,比较两种序列对病灶的显示情况。结果发现,在76例脑部疾病中,FLAIR共显示病灶172个,而T2加权像(T2WI)只显示123个。FASTFLAIR显示病灶较T2WI清楚明确。在FASTFLAIR上病灶与正常脑组织的对比度更高。FLAIR技术对颅脑病变的显示优于FSE序列T2加权像,特别是对脑表面或脑室周围病灶的显示,FLAIR有很高的临床使用价值,可作为颅脑MR检查常规序列的重要补充。
patients were studied with fast FLAIR sequence and T2-weighted fast spin-echo sequence prospectively- and a comparison between T2-weighted imaging(T2WI) and fast FLAIR imaging was made. Results revealed that FLAIR sequence detected 172 focus of disease- whereas T2-weighted fast spin- echo sequence detected 123 focus of disease. The former was more sensitive than the later. The extent and border of the lesions on FLAIR images were showed better than on T2WI. The constrast of lesion-to-normal and lesion-to-CSF(cerebrospinal fluid)were higher in FLAIR. The lesions of the brain were better demonstrated by FLAIR sequence than T2WI- espically in the case while the lesions were around the cerebral surface or ventricle. FLAIR has high clinical value in diagnosing brain disease- and it is an important complementary technique for rountine SE sequence.
出处
《中国医学物理学杂志》
CSCD
2003年第4期224-226,共3页
Chinese Journal of Medical Physics
