CAJ | 학술논문

目的：探讨磁敏感加权成像(SWI)检测急性缺血性脑卒中(AIS)颅内动脉血栓的应用价值。方法分析133例经临床和影像学证实的 AIS 患者影像(TOF-MRA、SWI)。根据患者发病时间将患者分为2组(A 组发病时间<24 h,B 组发病时间24~72 h),由2位医师盲法阅片,统计 SWI 图上显示的磁敏感血管征(SVS)和 TOF-MRA 中显示的血流信号中断/狭窄的数目和部位。结果A 组患者血栓的检出率高于 B 组(P<0.001)；SWI、TOF-MRA 2种方法对颅内动脉血栓的总体检出率无明显差异(P >0.05)；SWI对 A 组患者 M3段血栓的检出率高于 TOF-MRA,二者比较差异有统计学意义(P <0.05)。结论SWI 对 AIS 患者颅内动脉血栓的检出具有较高的诊断价值,尤其是对于早期 AIS 患者微小血管内血栓的检出。
목적：탐토자민감가권성상(SWI)검측급성결혈성뇌졸중(AIS)로내동맥혈전적응용개치。방법분석133례경림상화영상학증실적 AIS 환자영상(TOF-MRA、SWI)。근거환자발병시간장환자분위2조(A 조발병시간<24 h,B 조발병시간24~72 h),유2위의사맹법열편,통계 SWI 도상현시적자민감혈관정(SVS)화 TOF-MRA 중현시적혈류신호중단/협착적수목화부위。결과A 조환자혈전적검출솔고우 B 조(P<0.001)；SWI、TOF-MRA 2충방법대로내동맥혈전적총체검출솔무명현차이(P >0.05)；SWI대 A 조환자 M3단혈전적검출솔고우 TOF-MRA,이자비교차이유통계학의의(P <0.05)。결론SWI 대 AIS 환자로내동맥혈전적검출구유교고적진단개치,우기시대우조기 AIS 환자미소혈관내혈전적검출。
Objective To evaluate the diagnostic value of intra-arterial thrombi under went susceptibility weighted imaging(SWI) in patients with acute ischemic stroke(AIS).Methods The MRI images of 133 patients with AIS was analyzed,included time of flight MR angiography(TOF-MRA )and SWI.The patients were divided into two groups according to the time between onset of symptoms and MR imaging (group A,interval time<24 h;group B,interval time 24-72 h).Two neuroradiologists who were blin-ded to the patients clinical information,documented the number and location of susceptibility vessel sign (SVS)in SWI and embolic occlusion or stenosis on TOF-MRA in AIS patients.Results The thrombus detection rate in group A was higher than that in group B.There was no significant difference in the overall detection rate of thrombi between SWI and TOF-MRA in all AIS patients,but the thrombi detection rate in M3 segement of middle cerebral artery(MCA)with SWI was higher than that with TOF-MRA in group A(P <0.05).Conclusion SWI performs a high diagnostic value for thrombus detection in AIS patients,especially for the thrombus detection of M3 segement in early period of AIS.