Jabrane Karkouri1, Saba Shirvani1, Tiger Zhang1, Dennis Klomp2, Martijn Lunenburg3, Ladislav Valkovic4, and Christopher T. Rodgers1
1Wolfson Brain Imaging Center, University of Cambridge, Cambridge, United Kingdom, 2Department of Radiology, University Medical Center Utrecht, Utrecht, Netherlands, 3Tesla Dynamic Coils, Zaltbommel, Netherlands, 4Oxford Centre for Clinical Magnetic Resonance Research, University of Oxford, Oxford, United Kingdom
1Wolfson Brain Imaging Center, University of Cambridge, Cambridge, United Kingdom, 2Department of Radiology, University Medical Center Utrecht, Utrecht, Netherlands, 3Tesla Dynamic Coils, Zaltbommel, Netherlands, 4Oxford Centre for Clinical Magnetic Resonance Research, University of Oxford, Oxford, United Kingdom
We evaluated the performance of
two RF coil configurations for ultra-high field 31P-MRS
applications in the body via simulations, through
phantom and in vivo scans. Both verifications indicate that there is improvement in terms of B1+
efficiency for the dipole + loop vs quadrature loops.
Figure 3: B1+ field simulation results
of the dipole coil over a homogeneous phantom and a heart numerical model.
Figure 5: Left: cardiac mid-short axis localiser and CSI
grid. Right: mid-septal 31P cardiac spectrum (apodised by 30 Hz) from
the voxel highlighted in the CSI grid.