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Abstract #2922

Rapid Magnetic Resonance Imaging of Displacement Wave Propagation Introduced by a Transient High Intensity Focused Ultrasound Using a Gradient Echo Sequence

Jiming Zhang1, Pei-Herng Hor1, Raja Muthupillai2

1Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, TX, United States; 2Diagnostic and Interventional Radiology, St. Luke's Episcopal Hospital, Houston, TX, United States

We describe a full field-of-view rapid gradient echo based technique suitable for magnetic resonance acoustic radiation force imaging with a 7 s temporal resolution, and the validation of the method in a gel phantom. The propagation of the displacement wave emanating from the ultrasound focus within the phantom material was clearly captured by the method described. The potential to measure the displacement wave speed in phantom experiments may pave way toward estimating phantom mechanical properties.