早期脑梗死的MRI和MRA诊断  

MRI and MRA diagnosis of early cerebral infarction

作　　者：程敬亮[1] 杨运俊[1] 任翠萍[1] 张焱[1] 赵艺蕾[1] 李树新[1] 

机构地区：[1]郑州大学第一附属医院放射科,河南郑州450052

出　　处：《河南大学学报（医学版）》2005年第1期1-3,共3页Journal of Henan University:Medical Science

基　　金：河南省杰出青年科学基金资助项目041200060;河南省医学科技创新人才工程资助项目2003015;河南省重点科技攻关计划资助项目0224630105

摘　　要：目的:评价磁共振成像(MRI)和磁共振血管成像(MRA)对早期脑梗死的诊断价值。方法:对经临床证实的120例早期脑梗死的MRI和MRA资料进行回顾性分析。全部患者均有脑MRISE序列和3D-TOFMRA。发病后2h～6hMRI检查者26例,7h～72hMRI检查者94例。结果:120例早期脑梗死中,SE序列发现病变109例,呈长T1和长T2信号,其中大面积梗死41例,腔隙性梗死68例。MRA发现血管异常106例,表现为动脉闭塞、狭窄和硬化。结论:MRI和MRA联合使用能提高早期脑梗死的检出率。SE序列扫描可漏检部分早期脑梗死。Objective: To investigate diagnostic value of MRI and MRA for early cerebral infarction. Methods: MRI and 3D-TOF MRA of 120 patients with early cerebral infarction verified by clinic manifestation were retrospectively analyzed. 26 patients performed MRI and MRA in 2h^6h, 94 patients in 7h^72h after clinical findings occurred. All patients had brain MRI SE sequence and 3D-TOF MRA. Results: 109 of 120 cases with early cerebral infarction were found on MRI SE sequence, which demonstrated long T 1 and long T 2 signal intensity. Among them, large-area and lunular infarctions were 4 and 68 cases respectively. 106 of 120 cases were revealed arterial abnormalities, including arterial occlusion, stenosis as well as sclerosis. Conclusion: MRI SE sequence combined with MRA can enhance the rate of detecting early cerebral infarction. SE sequence alone may omit some early cerebral infarction.

关 键 词：脑梗死 磁共振成像 磁共振血管成像 诊断 

分 类 号：R743.33[医药卫生—神经病学与精神病学]