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

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.