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Abstract #1704

Fixed-phase prostate imaging with a 8-channel transmit/receive dipole antenna array on a conventional 3T system

Aidin Ali Haghnejad1, Mark Gosselink1, Ingmar Voogt1, Dennis Klomp1, Peter Luijten1, and Alexander Raaijmakers1,2

1Radiology, UMC Utrecht, Netherlands, Utrecht, Netherlands, 2Eindhoven University of Technology, Biomedical Image Analysis, Eindhoven, Netherlands

Local multi-transmit arrays at 3T provide reduced power requirements and reduced local SAR. However, it requires 3T scanners with multi-transmit functionality which are rare. This work presents add-on hardware that enables the use of local transmit/receive arrays. An exploration on prostate imaging with fixed phase settings using a 8-channel dipole array has been performed on four subjects. B1+ levels range from 5 to 8.5 uT for 8 x 215-300 W input power. T2w images have been acquired successfully for each subject. The modest inter-subject variation in B1+ demonstrates the feasibility of this approach.

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