Abstract #2749

Fast, isotropic, whole head perfusion imaging using a Spin Echo Rotating In-Out Spiral with velocity selective arterial spin labeling

David Joseph Frey¹, Jeffrey A. Fessler², Douglas C. Noll¹, and Luis Hernandez-Garcia¹

¹Radiology, University of Michigan, Ann Arbor, MI, United States, ²Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI, United States

Synopsis

Keywords: Arterial spin labelling, New Trajectories & Spatial Encoding MethodsWe investigate the performance of a new and efficient k-space sampling scheme that presents several advantages for velocity selective ASL imaging by rotating 2D spirals about the kx and ky axis. This paper compares the new readout to a traditional Stack-of-spirals readout by evaluating SNR for perfusion weighted images and the accuracy of z-scores for ASL FMRI experiments.

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