磁共振DWI技术在超急性期脑梗死诊断中的价值  

DIFFUSION-WEIGHTED IMAGING: ITS VALUE IN THE DIAGNOSIS OF HYPERACUTE CEREBRAL INFARCTION

作　　者：张密堂[1] 刘慧敏[1] 刘震[1] 葛婷[1] 

机构地区：[1]青岛大学医学院第二附院磁共振室,山东青岛266042

出　　处：《齐鲁医学杂志》2008年第1期64-65,共2页Medical Journal of Qilu

摘　　要：目的研究磁共振弥散加权成像(DWI)技术在超急性期脑梗死诊断中的价值。方法对32例超急性期脑梗死病人DWI扫描结果进行分析。结果32例超急性期脑梗死病人DWI全部显示为高信号,在表观弥散系数(ADC)图像上显示为低信号,检出率100%;3例曾有脑梗死病史,MRI常规序列只发现陈旧性梗死灶,而DWI检查发现有新梗死灶;DWI的全方向比单方向对显示超急性期脑梗死的梗死灶更清楚。结论磁共振DWI是诊断超急性期脑梗死较好的方法。Objective To study the value of diffusion-weighted imaging （DWI） in the diagnosis of hyperacute cerebral infarction （HCI）. Methods Data of DWI in 32 patients with HCI was analyzed. Results All the patients showed high DWI and low ADC signals, the detection rate being 100M. In three patients with past history of infarction, MRI showed merely old loci, while DWI revealed new lesions in addition to the old ones. The whole direction diffusion showed clearer infarct lesions than that of single direction diffusion did. Conclusion DWI provides a better way in the diagnosis of hyperacute cerebral infarction.

关 键 词：磁共振成像 弥散 脑梗塞 诊断 

分 类 号：R445.3[医药卫生—影像医学与核医学]