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Method for enhancement of ultrasonic image data

  • US 4,858,124 A
  • Filed: 08/11/1987
  • Issued: 08/15/1989
  • Est. Priority Date: 08/15/1984
  • Status: Expired due to Term
First Claim
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1. A method for processing reflected acoustic signals from a body of material and for generating a display of at least a portion of said body, representative of characteristics of said material comprising:

  • transmitting acoustic signals into a region of interest in said body in an ordered spatial progression;

    receiving reflected acoustic signals from said body;

    analyzing the frequency content of selected time portions of said received signal to derive spectral data representative of spectral power as a function of frequency for spatial samples of said body within said body region of interest;

    said spatial samples corresponding to said time portions of said received signal;

    normalizing said spectral data to values of said spectral data for an object with known reflection characteristics;

    deriving spectral characteristic values from said normalized spectral data independently for each of said spatial samples, said spectral characteristic values being selected from the group comprising frequency specific normalized spectral amplitude, spectral slope and spectral amplitude uncertainty; and

    generating a display of said body region of interest with a display characteristic for each of said spatial samples selected in accordance with said derived spectral characteristic values.

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