Clinical application value of susceptibility vessel sign in patients with acute ischemic stroke

ObjectiveTo investigate the significance of magnetic sensitive weighted imaging(SVS)in the diagnosis and treatment of acute cerebral infarction.

MethodsThe routine detection of MRI, DWI, SWI and MRA in 25 patients with acute cerebral infarction were implemented.The location of intracranial responsible blood vessel thrombosis was analyzed using SWI, the nerve defect degree score on admission and disability score after 90 days of onset were performed in all cases, and the significance of magnetically sensitive thrombus sign in judging the prognosis of patients was analyzed.

ResultsAmong 25 patients with acute cerebral infarction, the SVS along lesion vessel in 17 cases(68%)were found in SWI, and the vascular occlusion rate in SVS-positive patients was higher than that in SVS-negative patients(P < 0.05).During the following-up for 90 days of 25 patients with cerebral infarction, the clinical prognosis in 10 cases with positive SVS, 8 cases with negative SVS and 1 case were poor, and the poor clinical prognosis rate of positive SVS patients in SWI was higher compared with negative SVS patients(P < 0.05).

ConclusionsDuring the acute phase of cerebral infarction, the SVS sign in SWI can indicate the intracranial responsible intra-arterial thrombosis, and poor clinical prognosis.