Ultrasonic diagnostic equipment

Details Ultrasonic diagnostic equipment Ultrasonic diagnostic equipment

1997-01-21

1998-11-24

Jaworski, Francis

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

600450, A61B 800

Patent

active

058400281

ABSTRACT:
This invention relates to an ultrasonic diagnostic equipment usable to measure small vibrations in myocardial tissues superimposed on a large amplitude vibration of heartbeat. And it comprises a large amplitude motion analyzing means for deciding the an instantaneous position of the object by using the amplitude and phase of the detected signal and tracking a large amplitude of motion of the object, and a small vibration analyzing means for detecting a small vibration superimposed on the large amplitude motion by analyzing, succeeding positions of the large amplitude motion obtained from the large amplitude motion analyzing means. By using this invention, a local elasticity of width of 1-2 mm in myocardium and arterial wall can be evaluated noninvasively.

REFERENCES:
patent: 4233989 (1980-11-01), Larach et al.
patent: 4936308 (1990-06-01), Fukukita et al.
patent: 4984567 (1991-01-01), Kageyama et al.

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