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
FMRIB Centre, Nuffield Department of
Clinical Neurosciences, University of Oxford, Oxford,
of Engineering Science, University of Oxford, Oxford,
d'Imagerie Crbrale, McGill University, Montreal,
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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