磁共振DWI在诊断急性脑梗塞中的初步应用  

Application of diffusion-weighted imaging in the diagnosis of acute cerebral infarction

作　　者：盛鸿颖[1] 王景林[1] 王冰[2] 付旷[1] 卜丽红[1] 

机构地区：[1]哈尔滨医科大学第二临床医学院磁共振室,黑龙江哈尔滨150086 [2]哈尔滨医科大学第二临床手外科,黑龙江哈尔滨150086

出　　处：《哈尔滨医科大学学报》2005年第6期521-524,共4页Journal of Harbin Medical University

基　　金：黑龙江省2005年度科学技术(指导)项目计划(10553041)

摘　　要：目的初步探讨弥散加权像(DWI)技术在诊断急性脑梗塞中的应用价值.方法收集22例急性脑梗塞患者中超急性期(小于6h)3例,急性期(6～24h)19例,均行常规T1WI、T2WI及DWI扫描,并比较病变显示的对比度、边界以及范围,计算病灶的ADC值与rADC值.结果①DWI对于显示病灶的对比度、边界以及范围均优于常规T1WI和T2WI;②所有22病例病灶的ADC值与rADC值均下降.结论磁共振DWI技术对急性脑梗塞病变敏感度高,有很高的诊断价值.Objective To evaluate the diagnostic value of DWI in acute cerebral infarction. Methods Twenty-two patients with cerebral infarction （hyperacute infarction in 3 cases and acute infarction in 19 cases） were examined with T1 WI, T2WI and DWI sequences. The contrast of lesions, boundary and extent on all images were compared. ADC and rADC of the lesions were calculated. Results ①The contrast of lesions, boundary and extent on DWI were superior to convertional T1WI and T2WI. ②The value of ADC and rADC of the lesions decreased in all cases. Conclusion DWI is of the most sensitive, and it has great value in the diagnosis of acute cerebral infarction.

关 键 词：弥散加权像 急性脑梗塞 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学]