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Abstract #0524

ARFI-Prepared MR-Guided Transcostal HIFU in Sheep Liver In Vivo using a High Resolution Hybrid ARFI/MRT GRE-EPI Sequence

Vincent Auboiroux1, Magalie Viallon1, Jean-Nol Hyacinthe1, Joerg Roland2, Lorena Petrusca1, Thomas Goget1, Patrick Gross2, Christoph D. Becker1, Rares Salomir1

1Radiology Dept, Geneva University Hospital, Geneva, Switzerland; 2Siemens Healthcare, Erlangen, Germany

High resolution Acoustic Radiation Force Imaging (voxel size: 1x1x5mm) was achieved in sheep liver in vivo using a respiratory triggered hybrid sequence (displacement and temperature sensitive). Accurate detection of HIFU focal point in situ by ARFI was used for the preparation of transcostal ablative HIFU treatment.