Applied value of susceptibility-weighted imaging in acute ischemic stroke
10.7687/j.issn1003-8868.2017.05.086
- VernacularTitle:磁敏感加权成像在急性缺血性脑梗死检查中的应用价值
- Author:
Chaoen TIE
;
Huiqin CUI
;
Tao LI
;
Xue LUO
- Keywords:
susceptibility weighted imaging;
cerebral microbleeds;
susceptibility vessel sign;
ischemic penumbra;
acute ischemic stroke
- From:
Chinese Medical Equipment Journal
2017;38(5):86-88,98
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the applied values of susceptibility weighted imaging (SWI) in acute ischemic stroke.Methods Totally 40 patients with acute ischemic stroke were included within 72 hours after symptom onset.They adopted multimodal magnetic resonance imaging examination,including regular magnetic resonance imaging sequence (T1WI,T2WI),time of flight MR angiography (TOF-MRA),diffusion weighted imaging (DWI) and susceptibility weighted imaging (SWI).Furthermore,12 of the 40 patients received dynamic susceptibility contrast enhanced perfusion weighted imaging (DSCPWI) examination.Results Of the 40 patients,12 ones had positive results for multiple lesions of cerebral microbleeds (CMBs) by SWI,and the detection rate was 30％.There were 24 patients showed susceptibility vessel sign (SVS) in SWI,and the susceptibility rate was 60％.In the 12 patients received DSC-PWI examination simultaneously,there were 7 cases had the anomaly range by SWI larger than that by DWI while similar to that by DSC-PWI.Conclusion SWI can show SVS and CMBs clearly,estimate ischemic penumbra,know intracranial conditions completely and supply reliable basis for individualized treatment.
