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Abstract #4926

Construction of a 2-Channel Transmit/Receive Neck Array for Carotid Artery Vessel Wall Imaging at 7 Tesla

Konstantinos Papoutsis 1,2 , Linqing Li 1 , Jamie Near 3 , Stephen J Payne 2 , David Edwards 2 , and Peter Jezzard 1

1 FMRIB Centre, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom, 2 Department of Engineering Science, University of Oxford, Oxford, United Kingdom, 3 Centre d'Imagerie Crbrale, McGill University, Montreal, Quebec, Canada

A 2-channel transmit/receive neck coil has been constructed for carotid artery vessel wall imaging at 7 Tesla. The coil comprises 2 elements operating in parallel transmit and receive via a custom T/R switch. The coil has been evaluated for RF safety via estimation of worst case SAR with electromagnetic simulations and temperature measurements in meat phantoms. A black blood FLASH sequence with DANTE preparation pulses has been implemented for evaluation of the benefits of the ultra high field with promising results. The resolution achieved in a male subject was 0.6mm isotropic with 4 min acquisition time.

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