摘要
目的探讨磁敏感加权成像(SWI)序列对轻型脑外伤患者的诊断价值。方法 45例轻型脑外伤患者,伤后分别行头部CT、常规磁共振成像(MRI)及SWI检查,并对MRI常规序列和SWI检查出的脑微出血例数,及有无昏迷患者SWI检查脑微出血的阳性率进行对比分析。结果 SWI对脑外伤微出血灶检查的阳性率明显高于CT及MRI常规序列扫描,差异有统计学意义(P<0.05);SWI对伤后出现短暂性昏迷病史的患者SWI的检出阳性率为93.3%(28/30),伤后无短暂性昏迷病史的患者SWI的检出阳性率为66.7%(10/15);昏迷患者SWI阳性病灶的检出率要显著高于非昏迷患者,差异有统计学意义(χ2=3.8891,P<0.05)。结论 SWI比CT及常规MRI对轻型脑外伤患者脑内微出血灶的检出有更高的准确率,对指导临床治疗及判断预后有重大意义。
Objective To investigate diagnostic value of susceptibility weighted imaging （SWI） sequence in mild cerebral trauma patients. Methods A total of 45 patients with mild cerebral trauma patients received head CT, conventional magnetic resonance imaging （MRI） and SWI examination. Comparison was made on cerebral microbleeds cases between MRI conventional sequence and SWI examination, and positive rate of cerebral microbleeds detected by SWI between coma group and non-coma group. Results SWI had higher positive rate of cerebral trauma microbleeds than CT and MRI conventional sequence, and the difference had statistical significance （P〈0.05）. Positive detection rate by SWI for patients with transient coma was 93.3% （28/30）, and that for patients without transient coma was 66.7% （10/15）. Coma patients had obviously higher SWI positive detection rate than non-coma patients, and the difference had statistical significance （X2=3.8891, P〈0.05）. Conclusion SWI shows higher accuracy than CT and conventional MRI in detection of mild cerebral trauma patients with cerebral microbleeds, and it contains important significance in guiding clinical treatment and iudging prognosis.
出处
《中国实用医药》
2016年第32期93-95,共3页
China Practical Medicine
关键词
轻型脑外伤
磁敏感加权成像
微出血
Mild cerebral trauma
Susceptibility weighted imaging
Microbleeds
