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Abstract #1738

Concentric PET shields and wide-bore 1.5 T MR birdcage for optimal MR and PET signal

Deb Rivera1,2, Erik R Huijing3, Cezar Alborahal2,4, Flavio Meliado3,5, Bart Steensma3, Thomas Dey6, Volkmar Schulz7, Björn Weißler7, E Versteeg3, Hugo de Jong3, Martino Borgo8, Michel Italiaander2, and Dennis Klomp2,3

1Academic Medical Center, Amsterdam (AMC), Amsterdam, Netherlands, 2MR Coils BV, Zaltbommel, Netherlands, 3University Medical Center Utrecht (UMCU), Utrecht, Netherlands, 4MR Focus BV, Zaltbommel, Netherlands, 5MR Code BV, Zaltbommel, Netherlands, 6Rheinisch-Westfaelische Technische Hochschule Aachen, Aachen, Netherlands, 7Rheinisch-Westfaelische Technische Hochschule Aachen, Aachen, Germany, 8Furtura, Heerhugowaard, Netherlands

Prioritizing signal fidelity for PET and MR, we simulated, built, and tested a wide-bore 1.5T body coil with a concentric ring of novel PET shields. With such an approach, the inherent reduced transmit efficiency can be compensated for by applying more power. Through B1+ measurements in phantoms and in the head, we validate that dual RF power amplifiers meet the power requirements.

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