Objective: To study application value of magnetic susceptibility-weighted imaging(SWI) in the evaluation of cerebral stroke. Methods: It’s a retrospective analysis of 25 patients with unilateral middle cerebral artery stenosis or occlusion in a few hours to 24 hours after symptom onset. All of 25 cases underwent routine MR examination, including T2WI, T1WI, FLAIR, DWI, SWI, PWI. The scores of DWI, SWI and PWI was compared by alberta stroke program early CT score. Results: Asymmetric prominent vessels and prolonged mean transit time(MTT) map were found in 88%(22/25) of patients. SWI-ASPECTS and MTT-ASPECTS were associated with the best(r=0.796, P=0.000＜0.001). Conclusions: SWI has the similar ability to prolonged MTT, which can provide information about brain perfusion. But SWI needs further prospective studies in the guidance of thrombolytic therapy.
Key words
Cerebrovascular accident /
Magnetic resonance imaging
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