VWISVoluntary Work Information Service
References in periodicals archive ?
VWI will provide information of wall characteristics.
VWI can display vessel wall and lumen simultaneously, and has been used for discrimination of artery hypoplasia and atherosclerotic stenosis.[sup][24],[57] On the VWI, hypoplastic vertebral or basilar artery can show narrowing lumen with normal or thick wall.
VWI could noninvasively differentiate between various intracranial vasculopathies by identifying wall thickening pattern or enhancement pattern [Table 1].[sup][47],[61],[62],[63]{Table 1}
Using HRMR VWI, culprit lesions could be detected, and mechanism of stroke could be better established.
VWI will help find a vulnerable plaque with the features of IPH,[sup][43],[44],[45] obvious plaque enhancement,[sup][47],[48],[49],[50],[51],[52],[53],[54],[55],[56],[57] and positive remodeling.[sup][18],[30],[31],[32],[33],[34] Even for the stable plaque (e.g., plaque with a large fibrous cap and small lipid core, or plaque with negative remodeling),[sup][31],[32] severe stenosis will result in hypoperfusion and impaired clearance of emboli (washout), contributing to artery-to-artery thromboembolism,[sup][83] especially in the border zones without adequate collateral flow.
For the ischemic stroke with other determined cause, VWI is useful for definitive diagnosis of the stroke cause.