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Abstract #4927

Transmit/receive array for prostate imaging with fully flexible dipole antennas

Alexander J.E. Raaijmakers 1 , Tim van Daalen 1 , Ingmar Voogt 1 , Michel Italiaander 2 , Peter R. Luijten 1 , Cornelis A.T. van den Berg 3 , and Dennis W.J. Klomp 1

1 Radiology, UMC Utrecht, Utrecht, Utrecht, Netherlands, 2 MR Coils B.V., Drunen, Netherlands, 3 Radiotherapy, UMC Utrecht, Utrecht, Utrecht, Netherlands

Surface transmit arrays provide great advantages for ultra-high field imaging in terms of efficiency. More recently, dipole antennas have improved their performance considerably. However, their rigid structure does not always allow them to adapt to the body curvature. This work presents a dipole antenna prostate array that consists of foam and flexible PCB. The structure always adapts well to the shape of the subject. Matching was shown to be acceptable for three different subjects while coupling between elements is minimal. Imaging performance was characterized by a T2w TSE prostate image.

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