急性缺血性脑卒中的CT、常规MRI和DWI影像诊断研究  

Diagnostic Imaging Study of Acute Ischemic Stroke by CT,Conventional MRI and DWI

作　　者：张林 Zhang Lin(Department of Imaging,Dongying Hospital of Integrated Traditional Chinese and Western Medicine,Dongying,Shandong 257000)

机构地区：[1]东营市中西医结合医院影像科,山东东营257000

出　　处：《现代医用影像学》2024年第5期806-810,共5页Modern Medical Imageology

摘　　要：目的:分析电子计算机断层扫描(CT)、常规磁共振成像(MRI)以及磁共振弥散加权成像(DWI)对急性缺血性脑卒中(AIS)的影像学诊断价值。方法:选取2015年1月至2023年10月本院收治的疑似AIS患者202例为研究对象,均先后开展CT、常规MRI及DWI检查,将临床综合诊断结果作为金标准,观察单独或联合影像检查的诊断结果,比较单独或联合检查对AIS不同部位的诊断准确度,并绘制受试者工作特征(ROC)曲线,确定曲线下面积(AUC)、灵敏度及特异度,分析单独或联合检查的诊断效能。结果:常规MRI的诊断准确度高于CT(P<0.05),DWI的诊断准确度高于常规MRI(P<0.05),联合检查的诊断准确度高于DWI(P<0.05)。CT、常规MRI、DWI及联合检查的AUC值分别为0.895(95%CI:0.793~1.000)、0.922(95%CI:0.894~1.000)、0.944(95%CI:0.914~1.000)、0.997(95%CI:0.935~1.000),其中联合检查的AUC、灵敏度及特异度>DWI检查>常规MRI检查>CT检查。结论:CT、常规MRI及DWI对AIS均有一定诊断价值,且联合检查能提高对疾病的诊断效能。Objective:To analyze the diagnostic value of imaging of acute ischemic stroke(AIS)with electron computed tomography(CT),conventional magnetic resonance imaging(MRI)and magnetic resonance diffusion-weighted imaging(DWI).Methods:202 patients with suspected AIS admitted to our hospital from January 2015 to October 2023 were selected as the study subjects,all of whom were successively subjected to CT,conventional MRI and DWI,and the results of digital silhouette angiography(DSA)were used as the gold standard to observe the diagnostic results of individual or combined examinations,to compare the diagnostic accuracies of individual or combined examinations on lesions in different parts of AIS,and to draw the subjects To determine the area under the curve(AUC),sensitivity and specificity,and to analyze the diagnostic efficacy of individual or combined examinations.Results:The diagnostic accuracy of conventional MRI was higher than that of CT(P<0.05),DWI was higher than that of conventional MRI(P<0.05),and the diagnostic accuracy of combined examination was higher than that of DWI(P<0.05),and the AUC values of CT,conventional MRI,DWI and combined examination were 0.895(95%CI:0.793~1.000),0.922(95%CI:0.793~1.000),0.922(95%CI:0.922),and 0.922(95%CI:0.922)respectively.(95%CI:0.894~1.000),0.944(95%CI:0.914~1.000),and 0.997(95%CI:0.935~1.000)respectively,with the AUC,sensitivity and specificity of the combined examination>DWI examination>conventional MRI examination>CT examination.Conclusion:CT,conventional MRI and DWI all have certain diagnostic value for AIS,and the combined examination can improve the diagnostic efficacy of the disease.

关 键 词：急性缺血性脑卒中 电子计算机断层扫描 磁共振成像 磁共振弥散加权成像 

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] R816.1[医药卫生—临床医学]