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Abstract #2619

TROMBONE: T1-Relaxation-Oblivious Mapping of B1

Roman Fleysher1, Lazar Fleysher1, Matilde Inglese1, Daniel Sodickson1

1Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, USA

We present a method of transmit sensitivity estimation in which distribution of B1 values is extracted from two interleaved 3D spoiled-gradient-recalled-echo (SPGR) images acquired with 3D EPI readouts. The precision is a factor of 6 higher than that of the previously reported Actual Flip angle Imaging method in the same time and spatial resolution.