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Abstract #4817

Rapid Quantitative Susceptibility Mapping of Intracranial Hemorrhage using Echo Planar Imaging

Ashmita De1, Hongfu Sun1, Ahmed Elkady1, Derek Emery2, Kenneth Butcher3, and Alan H Wilman1

1Biomedical Engineering, University of Alberta, Edmonton, AB, Canada, 2Radiology & Diagnostic Imaging, University of Alberta, Edmonton, AB, Canada, 3Division of Neurology, University of Alberta, Edmonton, AB, Canada

Intracranial hemorrhage(ICH) accounts for about 20% of strokes. Quantitative Susceptibility Mapping (QSM) may be valuable for tracking iron changes in ICH. Here we apply Echo Planar Imaging (EPI) for rapid QSM at 3.0 T in hemorrhage patients. The acquisition time is only 9 sec without parallel imaging and 27 sec if parallel imaging is considered to maintain high resolution, appropriate echo time and minimize blurring effects. High correlation was observed for ICH area and mean susceptibility between standard QSM and EPI-QSM in hemorrhage. Hence EPI-QSM method has potential for clinical ICH studies when time is a limiting factor.

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