Tissue signature tracking tranceiver

Details Tissue signature tracking tranceiver Tissue signature tracking tranceiver

1984-06-04

1986-04-29

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

73602, 128660, G01N 2904

Patent

active

045848807

ABSTRACT:
An ultrasound tranceiver providing enhanced imaging by selective filtering of the received signal to provide a variable frequency, constant bandwidth filtering of the received echo signals. The resulting signals are then detected to produce a signal, which when displayed, has a reduced number of false multiple images and enhanced signal quality from the deeper tissue discontinuities. Additionally, the received signal is detected in quadrature by reference to a simulated carrier pilot tone having a nonconstant frequency relationship to the transmitted signal. The resulting signal is post-processed to provide information which is used to display structural features, and in addition, the velocity profile of blood flow. The structure and velocity image information is superimposed to provide a composite signal wherein the static and dynamic characteristic of a patient is completely reported to the observer.

REFERENCES:
patent: 4016750 (1977-04-01), Green
patent: 4158308 (1979-06-01), Sharpe et al.
patent: 4170144 (1979-10-01), Scott
patent: 4470306 (1984-09-01), Opara
Program and Abstracts, Ninth International Symposium on Ultrasonic Imaging and Tissue Characterization, Jun. 3-6, 1984, Wash., D.C., Academic Press, Inc.

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