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US 12,521,014 B2Granted
Reverberant shear wave field estimation of body properties
AssigneeUniversity of Rochester
InventorKevin Parker
Life of this patent
Estimating the term…
Abstract
A reverberant shear wave field in an object such as a patient's body or organ causes deformations in one or more selected directions measured with an imaging modality such as ultrasound or MR equipment or other imaging equipment, to estimate displacements in one or more selected directions over time increments and then viscoelastic properties such as stiffness or other parameters of the ROI.
Claims15
A method of using a reverberant shear wave field in a body to estimate viscoelastic properties of hidden regions of interest in the body, comprising:
- actuating a vibration source that produces plural shear waves at selected frequencies that interact with each other and with structures in the body to produce a reverberant shear wave field in the body;
- imaging a region of interest in the body in the presence of said reverberant shear wave field with an imaging device and producing an estimate of measured motion of the region of interest in a selected first direction;
- receiving in an image processor as inputs the selected frequencies of the shear waves and said estimate of measured motion, and to process the inputs with computer algorithms to provide an estimate of one or more viscoelastic properties of said region of interest in the body;
- displaying said estimate of one or more viscoelastic properties of the region of interest on a computer display;
- and
- controlling said steps of producing shear waves, imaging, computer processing, and computer display with a controller operatively coupled to said vibration source, said imaging device, said computer display, and said image processor.
3 more elements
Dependencies are inferred from the claim text.