Meeting Banner
Abstract #3177

Asymmetric Transceiver Phased Array for Functional Imaging and Spectroscopy of the Visual Cortex at 9.4 T

Nikolai I Avdievich 1 , Ioannis A Giapitzakis 1 , and Anke Henning 1,2

1 Max Planck Institute for Biological Cybernetics, Tbingen, Germany, 2 Institute for Biomedical Engineering, UZH and ETH Zurich, Zurich, Switzerland

Ultra-high field (>7T) RF coil design is challenging due to decreased transmit efficiency and strongly distorted B1 field profile. For functional SI of the visual cortex open RF coils are highly suitable since they provide an easy access and increased transmit efficiency by focusing RF field. In this work we demonstrated that a 9.4T 5-channel array with asymmetric arrangement of 4 transmit and 4 receive elements improves the transmit profile without compromising the reception. We also evaluated changes in the transmit efficiency, penetration depth and SAR due to variation in the array size and the phase shift between the elements.

This abstract and the presentation materials are available to members only; a login is required.

Join Here