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Abstract #0106

Three-dimensional magnetic resonance acoustic radiation force imaging in the breast

Allison Payne1, Lorne Hofstetter2, Henrik Odéen1, Erik Dumont3, Dennis L Parker1, and Jean Palussiere4
1Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, United States, 2Biomedical Engineering, University of Utah, Salt Lake City, UT, United States, 3Image Guided Therapy, Pessac, France, 4Institut Bergonie, Bordeaux, France

3D MR acoustic radiation force imaging (MR-ARFI) is a useful treatment planning and monitoring tool for magnetic resonance guided focused ultrasound (MRgFUS) treatments in the breast. MR-ARFI displacement is easily visualized in fat, fibroglandular and tumor tissues, allowing for accurate localization of the ultrasound beam and quantitative tissue assessment. The potential formation of standing shear waves in the breast requires careful optimization of the pulse sequence to ensure clear visualization of the radiation force displacement point. This effect is shown in both human breast and phantom data.

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