Ultrasonic diagnostic system

Details Ultrasonic diagnostic system Ultrasonic diagnostic system

1995-03-16

1995-11-28

Manuel, George

Surgery

Truss

Pad

73602, 7386125, A61B 800

Patent

active

054698502

ABSTRACT:
An ultrasonic diagnostic system incorporates therein a technique of extracting an outline of the tissue within the subject. The ultrasonic diagnostic system is functionally capable of objectively extracting the outline of the tissue without a manual work, or with only a simple manual work. A gradient on each point of a tomographic image is evaluated, a scalar quantity representative of the magnitude of the gradient is evaluated, a maximal point of the scalar quantity is evaluated, and the outline of the tissue is extracted on the basis of the maximal point thus evaluated. When the outline is extracted, an arithmetic effective domain is determined beforehand so that the outline is extracted only within the determined arithmetic effective domain. Further, a movement of the subject, which extends through a plurality of frames, is detected to vary the outline on the basis of the movement detected.

REFERENCES:
patent: 4662222 (1987-05-01), Johnson
patent: 5357964 (1994-10-01), Spivey et al.
patent: 5415171 (1995-05-01), Goh et al.

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