Negligible loss in double tuning when stacking 1H to 31P dipoles in an 8-channel dipole array with 24 receivers at 7T
Jabrane Karkouri*1, Ria Forner*2, Martijn Lunenburg3, Ettore Flavio Meliadò3, Catalina Arteaga3, Alexander Raaijmakers4,5, Christopher T. Rodgers†1, and Dennis Klomp†4
1University of Cambridge, Cambridge, United Kingdom, 2Radiology, UMC Utrecht, Utrecht, Netherlands, 3Tesla Dynamic Coils, Zaltbommel, Netherlands, 4UMC Utrecht, Utrecht, Netherlands, 5Biomedical engineering, Eindhoven University of Technology, Utrecht, Netherlands
We present a novel dual dipole coil concept for 7T 31P metabolic imaging in the body.
We constructed an array of 8x stacked 1H/ 31P dipoles, evaluating their performance by bench measurements, EM modelling, phantom experiments and in vivo scans in human liver. Parameters such as coupling, transmission efficiency and SAR are compared to those of a whole-body 31P birdcage coil.
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