Abstract #4287

Localization of US Focal Spot in in vivo Tissue Using 3D Acoustic Radiation Force Impulse Imaging

Joshua de Bever¹,², Nick Todd², Mahamadou Diakite,²³, Dennis Parker²

¹School of Computing, University of Utah, Salt Lake City, UT, United States; ²Utah Center for Advanced Imaging Research, Salt Lake City, UT, United States; ³Physics Department, University of Utah, Salt Lake City, UT, United States

This work evaluates the effectiveness of a 3D MRI pulse sequence for performing Acoustic Radiation Force Impulse imaging (ARFI) when applied in vivo. Building on 2D MR-ARFI techniques, this sequence provides enhanced volumetric coverage and would be especially beneficial for easily and safely localizing the ultrasound focal spot in all three dimensions before an MR guided high intensity focused ultrasound treatment.