Ultrasonic diagnostic apparatus

Details Ultrasonic diagnostic apparatus Ultrasonic diagnostic apparatus

1980-10-24

1982-12-07

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

128660, G01N 2900

Patent

active

043620582

ABSTRACT:
An ultrasonic probe for propagating an ultrasonic surface wave which is constrained along the probe with the evanescent pressure field penetrating the subject in a direction orthogonal to the axis of the probe. The ultrasonic probe may then be placed about a plurality of orientations, passing the evanescent pressure field through the subject along the plurality of orientations and detecting the loss of energy in each successive pressure field propagation. A data processing system for processing and correlating each successive detected energy loss in each propagation direction can produce a resultant computed tomographic image of a defined plane through the subject.

REFERENCES:
patent: 3609675 (1971-09-01), Abelle
patent: 3675128 (1972-07-01), Abele
patent: 3858437 (1975-01-01), Jarzynski et al.
patent: 4011747 (1977-03-01), Shaw

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