Means for increasing sensitivity in non-linear ultrasound imagin

Details Means for increasing sensitivity in non-linear ultrasound imagin Means for increasing sensitivity in non-linear ultrasound imagin

1996-02-06

1996-11-26

Manuel, George

Surgery

Truss

Pad

A61B 800

Patent

active

055775055

ABSTRACT:
An image with increased sensitivity to non-linear responses, particularly second harmonic responses, can be achieved by measuring the ultrasound response under multiple excitation levels. The responses gathered from the multiple excitation levels are gain corrected in an amount corresponding to the difference in excitation levels, then subtracted. Because of this subtraction, most of the linear response will be removed, and what remains corresponds to the non-linear response.

REFERENCES:
patent: 5410516 (1995-04-01), Uhlendorf et al.
patent: 5456257 (1995-10-01), Johnson et al.
patent: 5482046 (1996-01-01), Deitrich
"Ultrasonic Detection Of Resonant Cavitation Bubbles In A Flow Tube By Their Second-Harmonic Emissions", D. L. Miller; Ultrasonics, Sep. 1981; pp. 217-224.

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