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Abstract #2921

Validation of 3D Pulse Sequence for Large Volume Acoustic Radiation Force Impulse Imaging

Joshua de Bever1, Nick Todd2, Allison Payne2, Mahamadou Diakite2, John Hollerbach1, Dennis Parker2

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

A 3-D pulse sequence for providing large coverage volumetric Acoustic Radiation Force Impulse (ARFI) imaging is presented. This sequence allows for safe and easy localization of an ultrasound focal spot in three dimensions and would be especially beneficial for verifying targeting accuracy before an MR guided HIFU treatment.

Keywords

accuracy accurately acoustic acquisition amplitude analyzed array authors automatically bandwidth beam bipolar blue built burst bursts captured captures cause causing chair chance circuitry city computing convert coronal correlated corresponds coverage cycle designed detection developed device dimensions displacement distance drop duty easily easy efficacy encoding endowed especially expected experiment extends fired firing focal focus focused force foundation frequency generator geometric gradient gradients grants guided heating identifying impulse include inhomogeneities iris laboratories lake leveraging lobe localization location locations lost maps meas measured mechanical might motion moves offset optical optimization optimizations output oversampling parker pattern peak phantom phys plotted positioned post prediction pressure previous properties providing pulse pulses qualitatively radiation rapid reduced reduction relevant resolution rising safely salt schematic school segmented several significantly simple slice slices spin spot steered steering successfully synchronizes targeting temperature temperatures therapy tilting tissue tracked transducer treatment trigger trio ultrasound utility validate validation verify verifying volume volumetric watts zero zone