Abstract #0409
A Fast and Practical Imaging Scheme for a Rotating RF Coil at 9.4T by Using Ultra-short TE Sequence in Radial Trajectory
Mingyan Li 1 , Thimo Hugger 2 , Ewald Weber 1 , Jin Jin 1 , Feng Liu 1 , Peter Ullmann 2 , Simon Stark 2 , Yasvir Tesiram 3 , Yang Yang 1 , Sven Junge 2 , and Stuart Crozier 1
1
The School of Information Technology and
Electrical Engineering, The University of Queensland,
Brisbane, QLD, Australia,
2
Bruker
BioSpin MRI GmbH, Ettlingen, Baden-Wrttemberg, Germany,
3
Centre
for Advanced Imaging, The University of Queensland,
Brisbane, QLD, Australia
This work presents a novel, practical imaging scheme for
the rotating coil by using radial trajectories. A single
channel pneumatically-driven rotating coil is built for
9.4 T preclinical system. We show in theory that with
proper combination of rotation speed and sequence TR,
the averaging effect of radial trajectories can be
employed to minimise the effects of the
rotation-dependent sensitivity on image formation.
Preliminary experiments show that when radial
ultra-short TE (UTE) sequence is combined with the
rotating scheme, the single element rotating coil is
capable of reconstructing images free of artefacts and
intensity variation without using sensitivity
calibration.
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