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Abstract #4250

Inner Volume Imaging of the Kidney in vivo Using Parallel Transmit

Martin Haas1, Denis Kokorin1, Stefanie Buchenau1, Ara K. Yeramian1, Hans-Peter Fautz2, Tobias Wichmann3, Jrgen Hennig1, Michael Bock1, Maxim Zaitsev1

1Medical Physics, Department of Radiology, University Medical Center Freiburg, Freiburg, Germany; 2Siemens Healthcare, Erlangen, Germany; 3RAPID Biomedical GmbH, Rimpar, Germany

Inner volume imaging with multi-dimensionally selective RF pulses has become feasible with introduction of parallel transmit acceleration techniques. Small organs like the kidney can profit from IVI, where the significant reduction of phase encoding steps decreases the acquisition time, which is limited by the patients ability to hold their breath. In this work, selective excitation of the right kidney of a volunteer is demonstrated, using eight-channel accelerated parallel transmit selective excitation. The kidney is imaged using segmented EPI in one breathhold and T2* maps are acquired with the aim to assess oxygenation changes in cortex and medulla under water loading.