Method and apparatus for reflective ultrasonic imaging utilizing

Details Method and apparatus for reflective ultrasonic imaging utilizing Method and apparatus for reflective ultrasonic imaging utilizing

1977-06-23

1978-10-24

Queisser, Richard C.

Measuring and testing

Vibration

By mechanical waves

73622, 73626, 128 2V, G01N 2904

Patent

active

041214684

ABSTRACT:
An ultrasonic imaging system for medical and industrial applications produces quantitative acoustic impedance distributions from reflection data. The method and scanner apparatus with analog computation circuitry herein described acquires echo pulses reflected from impedance discontinuities in the specimen and computes impedance projections. The ensemble of projections, as in other computerized tomography systems, is used for reconstruction of the images which in this case are impedance distributions in a thin slice of the specimen.

REFERENCES:
patent: 3673394 (1972-06-01), Hartmann
patent: 3830223 (1974-08-01), Beretsky et al.
patent: 3934458 (1976-01-01), Beretsky et al.
patent: 4074564 (1978-02-01), Anderson
J. F. Greenleaf et al., Algebraic Reconstruction of Spatial Distributions of Acoustic Velocities in Tissue from Their Time of Flight Profiles, Acoustic Holography, vol. 6, 1975, Plenum Press, pp. 71-90.

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