Patent · US Active

Direct strain estimator for measuring elastic properties of tissue

US8100831B2 · kind B2 · utility

8Cited by

5References

27Claims

0Family size

Assignee

General Electric Company · US

Inventors

Karsten Hiltawsky · Stockelsdorf, DE
Christopher Robert Hazard · Niskayuna, US
Feng Lin · Niskayuna, US

Key dates

Filing date	Nov 22, 2006
Grant date	Jan 24, 2012
Priority date	—
Expiry date	Oct 19, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B8/485
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

Ultrasound data of a biological tissue is acquired in a relaxed state and a tensed state. A strain is estimated directly from the relaxed state ultrasound data and the tensed state ultrasound data by way of an imaginary part of a complex correlation function. In estimating the strain, the tensed state ultrasound data is re-stretched, and the imaginary part of the complex correlation function is calculated from this re-stretched ultrasound data and the relaxed state ultrasound data. A slope factor is also calculated, and the strain is estimated from this slope factor and the imaginary part of the complex correlation function.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.