Using reflected shear waves for monitoring lesion growth in thermal ablations
US11337673B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Jun 5, 2017 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Mar 19, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H30/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for boundary identification includes a memory (42) to store shear wave displacements through a medium as a displacement field including a spatial component and a temporal component. A directional filter (206, 208) filters the displacement field to provide a directional displacement field. A signal processing device (26) is coupled to the memory to execute a boundary estimator (214) to estimate a tissue boundary in a displayed image based upon a history of the directional displacement field accumulated over time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.