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Abstract #2094

Comparison of Nova 1Tx vs 8Tx head coils for routine 7T neuroimaging

Belinda Ding1, Catarina Rua1,2, and Christopher T Rodgers1
1Wolfson Brain Imaging Centre, University of Cambridge, Cambridge, United Kingdom, 2Invicro LLC, A Konica Minolta Company, London, United Kingdom


Most 7T MRI sites have two head coils available for neuroimaging: a single-transmit coil and one capable of parallel transmission (pTx, or 8Tx). The 8Tx coil has a circularly polarised (CP) mode, allowing it to play RF waveforms identical to its 1Tx counterpart. This study compares the performance of a 1Tx coil against an 8Tx coil from the same manufacturer for routine neuroimaging. The 8Tx coil gave better B1+ profiles in posterior brain regions which translates into improvements in other imaging sequences. It also enables the inclusion of pTx-enabled sequences. However, more detailed studies are needed before pooling data.

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