Abstract #2756

Multiple dynamics gradient-echo EPI acquisitions for quantitative susceptibility mapping

Vanessa Wiggermann^1,2,3, Enedino Hernández-Torres^2,3, Christian Kames^1,3, and Alexander Rauscher^1,2,3,4

¹Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada, ²UBC MRI Research Centre, University of British Columbia, Vancouver, BC, Canada, ³Pediatrics, University of British Columbia, Vancouver, BC, Canada, ⁴BC Children's Research Centre, University of British Columbia, Vancouver, BC, Canada

In this work we demonstrate the feasibility to utilize EPI read-out schemes in combination with multiple dynamics to acquire multi-echo like data sets with the freedom of variable echo times, allowing to acquire fast, high-resolution quantitative susceptibility maps (QSM) images. Assessing the quality of the QSM scans in a region-of-interest based analysis as well as via structural and feature similarities we observed high qualitative and quantitative agreement between QSM images from multi-dynamic EPI acquisitions and multi-echo gradient echo scans.

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