磁共振弥散加权成像在老年急性脑梗死诊断中的应用价值研究  

Study on application value of magnetic resonance diffusion weighted imaging in the diagnosis of acute cerebral infarction in the elderly

作　　者：郑淞文[1] 张潇 隋远超[1] 邴晶[1] ZHENG Song-wen;ZHANG Xiao;SUI Yuan-chao(Department of Radiology,Dalian Central Hospital,Dalian 116033,China)

机构地区：[1]大连市中心医院放射科,116033

出　　处：《中国现代药物应用》2018年第6期11-12,共2页Chinese Journal of Modern Drug Application

摘　　要：目的探讨磁共振弥散加权成像(DWI)在老年急性脑梗死患者诊断中的应用价值。方法 100例老年急性梗死患者利用磁共振DWI技术对患者进行诊断。观察临床诊断结果。结果急性脑梗死的相对弥散加权系数(ADC)为50.80%,高于亚急性脑梗死的的24.02%及慢性脑梗死的20.17%,低于超急性脑梗死的60.15%(P<0.05)。采用DWI显现出急性脑梗死病灶阳性84个,阴性1个,阳性率为98.82%;采用T_2加权成像(T_2WI)显现出急性病灶脑梗死阳性72个,阴性13个,阳性率为84.71%,DWI对急性脑梗死检测的灵敏度高于T_2WI(P<0.05)。结论磁共振DWI对急性脑梗死的灵敏度高,应用价值高,值得推广。Objective To discuss the application value of magnetic resonance diffusion weighted imaging(DWI)in the diagnosis of acute cerebral infarction in the elderly.Methods A total of 100 elderly patients with acute cerebral infarction were diagnosed by magnetic resonance DWI technique,and their clinical diagnostic results was observed.Results The apparent diffusion coefficient(ADC)of acute cerebral infarction is 50.80%,which is higher than 24.02%in subacute cerebral infarction and 20.17%in chronic cerebral infarction,and lower than 60.15%in hyperacute cerebral infarction(P<0.05).DWI showed 84 positive lesions of acute cerebral infarction,including 1 negative case,with positive rate as 98.82%.T2 weighted imaging(T2WI)showed 72 positive cases and 13 negative cases,with positive rate as 84.71%.The sensitivity of DWI in diagnosis of acute cerebral infarction was higher than that of T2WI(P<0.05).Conclusion Magnetic resonance DWI shows high application value,and high sensitivity for acute cerebral infarction,and it is worthy of promotion.

关 键 词：急性脑梗死 弥散加权成像 应用 

分 类 号：R445.2[医药卫生—影像医学与核医学] R743.3[医药卫生—诊断学]