Abstract #4044

Shear wave elastography using multi-point acoustic radiation force imaging

Lorne W. Hofstetter¹, Henrik Odéen¹, Bradley D. Bolster, Jr.², Douglas A. Christensen^3,4, Allison Payne¹, and Dennis L. Parker¹

¹Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, United States, ²Siemens Medical Solutions USA, Inc., Salt Lake City, UT, United States, ³Department of Bioengineering, University of Utah, Salt Lake City, UT, United States, ⁴Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT, United States

Characterizing the mechanical properties of tissue during focused ultrasound ablative therapies could provide useful information for pretreatment planning and treatment endpoint assessment. In this work we present a 3D MR acquisition capable of measuring propagating shear waves from a spatially distributed collection of focused ultrasound generated acoustic radiation force impulses. This new multi-point shear wave elastography technique is demonstrated and compared to conventional MR elastography.

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