Ultrasonic medical diagnostic apparatus and method

Details Ultrasonic medical diagnostic apparatus and method Ultrasonic medical diagnostic apparatus and method

1979-02-01

1981-01-06

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

73626, G01N 2904

Patent

active

042429110

ABSTRACT:
The non-invasive testing of soft body tissue is accomplished with the use of a beam of ultrasonic energy which may be focused at varying depths in a patient. The energy content of the ultrasound beam is varied as a function of depth of focus to thereby employ the minimum energy required for proper resolution at the chosen examination depth. Signals commensurate with echoes received by a transducer having an array of coaxial annular electrodes thereon are combined in a manner which results in a good signal-to-noise ratio and minimum attenuation thereby improving the quality of the information derived from the examination procedure.

REFERENCES:
patent: 4058003 (1977-11-01), Macovski
patent: 4137777 (1979-02-01), Haverl et al.
patent: 4138895 (1979-02-01), Mezrich

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