The diagnostic value in intra-arterial thrombi of susceptibility weighted imaging in patients with acute ischemic stroke
10.3969/j.issn.1002-1671.2015.09.002
- VernacularTitle:SWI 对急性缺血性脑卒中颅内动脉血栓的诊断价值
- Author:
Li ZHU
;
Tianle WANG
;
Shenchu GONG
;
Yihua LU
;
Haitao CHEN
;
Hongbiao JIANG
- Publication Type:Journal Article
- Keywords:
susceptibility weighted imaging;
acute ischemic stroke;
intra-arterial thrombi
- From:
Journal of Practical Radiology
2015;(9):1415-1419
- CountryChina
- Language:Chinese
-
Abstract:
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.
