Method of and apparatus for the detection and characterization o

Details Method of and apparatus for the detection and characterization o Method of and apparatus for the detection and characterization o

1995-03-27

1996-12-03

Jaworski, Francis

Surgery

Truss

Pad

A61B 800

Patent

active

055797717

ABSTRACT:
An echograph of the type involving signal processing in the time domain with correlation-interpolation of the echographic signals is adapted to measure radial displacement velocities of the walls of an artery. A frame is scanned with a period T of a few ms at a rate of one excitation per line, and the correlations-interpolations are performed between collinear excitation lines shifted by the period T (52), enabling velocity values V(x,z,t) to be obtained for storage in a first memory (55) and amplitude values A(x,z,t) for storage in a second memory (57). These values are subsequently processed (60) in order to deduce dilatation and compression curves therefrom.

REFERENCES:
patent: 4803990 (1989-02-01), Bonnefous et al.
patent: 5107840 (1992-04-01), Bonnefous
patent: 5411028 (1995-05-01), Bonnefous

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