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Abstract #1141

Multifrequency MR elastography of the human prostate by multiple surface-based compressed-air drivers: reproducibility and first patient results

Florian Dittmann1, Jing Guo1, Heiko Tzschätzsch1, Sebastian Hirsch2, Rolf Reiter1, Patrick Asbach1, Andreas Maxeiner3, Jürgen Braun2, and Ingolf Sack1

1Institute of Radiology, Charité, Berlin, Germany, 2Department of Medical Informatics, Charité, Berlin, Germany, 3Department of Urology, Charité, Berlin, Germany

A new setup for prostate MR Elastography is proposed that uses surface-based wave excitation by compressed-air drivers. The post-processing with tomoelastography combining wave fields at drive frequencies of 60, 70, and 80 Hz leads to highly resolved elasticity maps. A study in healthy volunteers demonstrates the good reproducibility of the method. Furthermore, the first patient results show excellent agreement with contrast-enhanced reference images, which motivates future patient studies.

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