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Abstract #4238

Improved Transmit Efficiency and Clinical Coverage using a Cervical Spine Array with a Volumetric Transmitter at 7T

Alexander Smerglia1, Labros Petropoulos1, Jami Tatulinski1, Tsinghua Zheng1, Xiaoyu Yang1, Jagjit Sidhu2, Ken Sakaie2, and Mark Lowe2
1Quality Electrodynamics (QED), Mayfield, OH, United States, 2Imaging Institute, Cleveland Clinic, Cleveland, OH, United States

Synopsis

Keywords: High-Field MRI, Brain, Spine, Imaging, CerebellumSeveral challenges are present when imaging the cervical spine in high-field MRI, such as achieving B1 coverage over the desired anatomy while maximizing efficiency of the transmitter. A cervical spine array coil with a volume transmit birdcage was built and tested on a system for improved transmit coverage and efficiency over previous prototypes. The coil consists of a partially shielded 22-rung birdcage transmitter and a 24 element receive RF array. A new mechanical design with larger eye windows improves the clinical experience. Improved transmit efficiency and complete B1 field coverage in the cervical spine region were confirmed through volunteer imaging.

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