Abstract #1556

Accelerated Quantitative Susceptibility Mapping at 7T Using 3D Planes-on-a-Paddlewheel (POP) EPI

Daniel Stäb^1,2, Steffen Bollmann¹, Christian Langkammer³, Kristian Bredies⁴, and Markus Barth¹

¹The Centre for Advanced Imaging, The University of Queensland, Brisbane, Australia, ²Department of Diagnostic and Interventional Radiology, University of Würzburg, Würzburg, Germany, ³Department of Neurology, Medical University of Graz, Graz, Austria, ⁴Institute for Mathematics and Scientific Computing, University of Graz, Graz, Austria

Ultra-high field whole brain susceptibility mapping at an isotropic resolution of 1 mm was performed within 16 seconds using a 3D planes-on-a-paddlewheel (POP) EPI sequence. The non-Cartesian readout scheme is created by rotating a standard EPI readout train around its own phase encoding axis and provides higher flexibility for echo time minimization than conventional 3D EPI. Morphologic images and susceptibility maps obtained were comparable to those acquired with a conventional 4 minute 3D GRE scan.

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