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Abstract #0166

Highly Accelerated 7T Prostate Imaging using Parallel Imaging

Alexander J. E. Raaijmakers1, Ozlem Ipek1, Wouter Koning2, Hugo Kroeze2, Cecilia Possanzini3, Paul R. Harvey3, Dennis Klomp2, Peter R. Luijten2, Jan J. W. Lagendijk1, Cornelis A. T. van den Berg1

1Radiotherapy, UMC Utrecht, Utrecht, Netherlands; 2Radiology, UMC Utrecht, Utrecht, Netherlands; 3Philips Medical Systems, Best, Netherlands

Prostate imaging at 7 Tesla suffers from high SAR levels and B1 signal attenuation. An array of 8 single-side adapted dipole antennas shows good signal coverage and is able to reduce the SAR levels by a factor of 4. In this work the parallel imaging performance of this array is characterized. The reference image is obtained by travelling wave imaging. GRE images are obtained using SENSE and reduction factors varying from 1 to 8. No folding artefacts are observed up to a reduction factor of 6 and g-factor values in the prostate stay within reasonable bounds for all reduction factors.