Susceptibility Vessel Sign (SVS) for Assessment of IntrAarterial Thrombus and Thrombus Burden in PA

Introduction: SWI can help in the diagnosis of thrombus within the vessel in acute ischemic stroke (AIS) known as susceptibility vessel sign (SVS) and detection of SVS within the vessel can predict treatment modality and outcome. In this study, the purpose is to correlate the SVS on SWI with different parameters.

Method(s): It was a retrospective cross-sectional study, where consecutive stroke patients with vessel occlusion on magnetic resonance angiography (MRA) were included for the study for one year. The relation of SVS on SWI with risk factors and territory involved and length of thrombus was correlated with the NIH stroke scale (NIHSS).

Result(s): A total of 105 patients were enrolled for this study. Of these, 62% (66 out of 105) of patients showed SVS on SWI with MRA positive occlusion. A positive correlation was observed between SVS on SWI with the risk factor (p = 0.003), territory of occlusion, and size of thrombus.

Conclusion(s): SWI can be useful in identifying the location of the thrombus, and NIHSS; and can determine the thrombus length in acute stroke and associated risk factor.

Publication History

Article published online:
09 February 2023