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Abstract #2609

Estimating K Transmit B1+ Maps from K+1 Scans for Parallel Transmit MRI

Amanda Kay Funai1, Jeffrey A. Fessler1, Douglas C. Noll2

1EECS, University of Michigan, Ann Arbor, MI, USA; 2BME, University of Michigan, Ann Arbor, MI, USA

We propose a method to obtain a map of the complex B1 field strength of K coils using only K+1 measurements. We transmit using coil combinations (leave-one-out) to achieve larger flip angles in the FOV. The proposed method incorporates slice selection effects to create an iterative regularized method with superior results to existing methods.