A 3D Loop-Loopole Receive Array for Spine Imaging at 3.0 T.
Karthik Lakshmanan1,2, Ryan Brown1,2, and Graham C Wiggins1,2
1Center for Biomedical Imaging, Department of Radiology, NYU School of Medicine, Newyork, NY, United States, 2Center for Advanced Imaging Innovation and Research (CAI2R), NYU School of Medicine, Newyork, NY, United States
High channel count RF receive coil arrays
have become commonplace due to the advent of parallel imaging techniques and
due to technical advances in receive chain technology. Using these general
purpose coil arrays SNR can be maximized over wide depths by covering the
imaging region with an array of planar loops. This is usually achieved by
reducing the coil dimensions while still maintaining sufficiently high
unloaded-to-loaded Q ratio. In this work we aim to improve upon the SNR of a
high element count array by adding concentric orthogonal "Loopole"
elements. The asymmetric behavior of the loopoles combined with its orthogonal
location provided SNR improvements both at shallow and deep regions in an
imaging plane.
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