目的观察GE1.5T磁共振颅脑MRA 成像用于临床诊断脑血管疾病的效果，评 价其临床应用价值及远近期预后。方法 选取2012年4月-2014年4月我院脑血管内 科收治的480例脑血管疾病患者，按诊断 方法不同定义为观察组(240例，GE1.5T磁 共振颅脑MRA成像诊断)，对照组(240例， 常规MRI诊断)，对比两组患者临床诊断结 果，分析远近期预后。结果 观察组与对 照组患者疾病类型总检出率分别为100%、 80.4%，两两数据分析(χ2 =52.10，P ＜0.05)；240例患者在MRA成像表现中， 均能清楚显示常见血管疾病及血管形态 的异常改变；确诊后随访1个月~1年，观 察组引起失语症占5.4%，偏瘫占10.4%， 偏瘫失语症占3.8%；对照组引起失语症 占10.9%，偏瘫占17.1%，偏瘫失语症占 9.3%；比较两组间数据，差异有统计学意 义(χ2 =4.41、4.12、5.69，P＜0.05)。 结论 GE1.5T磁共振颅脑MRA成像具有无 创、有效、准确、快速、操作简便等优 点，临床诊断脑血管疾病检出率高、显像 清楚，为临床科学制定治疗方案及改善预 后提供准确判断依据。

Objective To observe the efficacy of GE1.5 T Magnetic Resonance Brain MRA Imaging applied for clinical diagnosis of cerebrovascular disease and to evaluate clinical application value and short-term and long-term prognosis. Methods Four hundred and eighty patients with cerebrovascular disease admitted by the Department of Cardiovascular Internal Medicine of the Hospital were selected, and they were defined into the observation group (240 patients, GE1.5T Magnetic Resonance Brain MRA Imaging diagnosis) and the control group (240 cases, conventional MRI diagnosis) according to different diagnostic methods, results of clinical diagnosis of two groups of patients were compared, and short-term and long-term prognosis was analyzed. Results The total positive rate of disease types of patients in the observation group and the control group hit 100% and 80.4% respectively, the two-by-two data analysis satisfied (χ2 =52.10, P＜0.05). Abnormal changes in common vascular diseases and forms of blood vessels were obviously shown in MRA imaging manifestations of 240 patients. The follow-up action was made in during the period from one month to one year after diagnosis, the proportions of aphasia, hemiplegia and hemiplegia plus aphasia of patients in the observation group occupied 5.4%, 10.4% and 3.8% respectively, and those indexes of patients in the control group were 10.9%, 17.1% and 9.3% respectively. The intergroup data was compared, and the differences were statistically significant (χ2 =4.41, 4.12 and 5.69, P＜0.05). Conclusion GE1.5T MRI brain MRA is provided with advantages including noninvasive, effective, rapid, accurate and simple operations, the positive rate of cerebrovascular disease in clinical diagnosis was high, and the development was clear, providing accurate judgment basis for therapy program and prognosis improvement in clinical science.