Rai, Santosh PV and Sanyal, Pulastya and pai, shivananda and *, Basavaprabhu Achappa and Madi, Deepak and *, Pavan M R (2019) Synergistic role of susceptibility-weighted imaging with diffusionweighted imaging and magnetic resonance angiography in the evaluation of acute arterial stroke. Journal of International Medical Research, 47 (5). ISSN 03000605

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Abstract

Objective: This study was performed to investigate whether diffusion-weighted imaging (DWI) and susceptibility-weighted imaging (SWI) are more effective than conventional imaging modalities for evaluation of stroke and selection of candidates for thrombolytic therapy. Methods: Eighty patients who presented within 12 hours of onset of symptoms of brain ischemia underwent 1.5T magnetic resonance imaging. DWI and SWI were compared with conventional sequences (T1, T2, and fluid-attenuated inversion recovery [FLAIR]) and time-of-flight magnetic resonance angiography (TOF-MRA) to assess factors that affect stroke management and prognosis. Results: The volume of brain tissue showing hyperintensity was significantly greater than that showing diffusion restriction in patients with a >6-hour symptom onset. The hypointensity sign

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