Abstract #3686
Experimental Validation of a 3D MR-Acoustic Radiation Force Imaging Simulation Algorithm
Allison Payne 1 , Joshua de Bever 2 , Alexis Farrer 3 , Dennis Parker 4 , and Douglas Christensen 3
1
Radiology, University of Utah, Salt Lake
City, UT, United States,
2
Computer
Science, University of Utah, Utah, United States,
3
Bioengineering,
University of Utah, Utah, United States,
4
Radiology,
University of Utah, Utah, United States
The theory and validation of an MR-ARFI simulation
technique is presented. The theory predicts the
displacement due to the given force pattern along the
axis of ultrasound beam propagation. Validation of the
simulation technique is performed using a 3D spin echo
segmented-EPI sequence with unbalanced-bipolar motion
encoding gradients in homogeneous phantoms of varying
stiffness. The simulations qualitatively match the
experimental results for all tested phantoms. This
computationally efficient simulation technique can be
used to quantify the effects of ARFI for both MRgFUS
treatment planning and assessment.
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