Twenty-Four Channel Receive-Only Array for Brain Imaging at 7T
Ledden P, van Gelderen P, Duyn J, Wang S, Mareyam A
Nova Medical, Inc.
The availability of increasing numbers of receivers on 7T MRI scanners leads to the question of how to optimally make use of these additional channels. For this work, we describe a 24 channel receive-only array using radially gapped columns of overlapping elements parallel to B0 for brain imaging at 7T. This element geometry provided dramatically improved sensitivity improvements over a quadrature channel volume coil and more modest yet significant sensitivity improvements eight channel radially gapped coil of similar size. Axial plane G factors were low and this coil geometry allows for SENSE acquisition in other planes