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Abstract #1523

Improving RF efficiency in the brain and the neck at 7T using a novel pTx coil

Mohamed Tachrount1, Bleddyn Woodward1, Emre Kopanoglu1, Michel Italiaander2, Denis Klomp2,3, Ian Driver1, and Richard Wise1

1CUBRIC, School of psychology, Cardiff University, Cardiff, United Kingdom, 2MR Coils, Zaltbommel, Netherlands, 3Department of Radiology, University Medical Center Utrecht, Utrecht, Netherlands

MRI at UHF is promising for a variety of clinical applications however it is challenging because of B0 and B1 inhomogeneities and SAR limitations. To improve the RF efficiency in the brain and the neck, a novel 8Tx/32Rx RF coil has been built by MR coils. Its performance in terms of B1+ intensity and homogeneity at the brainstem/cerebellum and the neck was assessed and compared with the standard Nova Medical 8Tx/32Rx coil. The novel coil allows for a higher B1+ at the brainstem/cerebellum and the neck where B1+ mapping and shimming need further optimisation for ASL application.

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