Method and device for measuring a mean value of visco-elasticity of a region of interest
US8545407B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 16, 2007 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Feb 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/0012
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method for measuring a mean visco-elasticity value for a soft material. The method uses a single probe carrying at least one transducer and includes the steps of: (a) inducing, in a constraint zone, at least one burst of mechanical vibrations in order to generate internal shear waves in the tissue propagating from the constraint zone into the tissue, (b1) measuring, with the transducer, the transient tissue displacements in at least one first measurement zone in the tissue, and wherein the first measurement zone is located away from the constraint zone, and (c) estimating a mean visco-elasticity of the region of the tissue situated between the constraint zone and the first measurement zone from the measured transient tissue displacements of the tissue in the first measurement zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.