Method and device for spectral analysis of an echographic signal
AssigneesActis Active Sensors S.r.l., Esaote S.p.A.
InventorsLeonardo Masotti, Elena Biagi, Simona Granchi, Luca Breschi
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Abstract
A description is given of a method of spectral analysis of a radio frequency ultrasonic signal reflected by a structure subjected to echographic examination, comprising the steps of: a) transmitting an ultrasonic excitation signal into a portion of said structure under examination; b) receiving a radio frequency response signal from said structure; c) applying a time-frequency transform to said radio frequency response signal, dividing the radio frequency response signal into a plurality of frequency bands; d) calculating a local spectral parameter from the values of the time-frequency transform.
Claims14
Method of spectral analysis of a radio frequency ultrasonic signal reflected by a structure subjected to echographic examination, comprising the steps of:
- a) transmitting an ultrasonic excitation signal into a portion of said structure subjected to examination;
- b) receiving a radio frequency response signal from said structure;
- c) applying a time-frequency transform to said radio frequency response signal, thus dividing the radio frequency response signal into a plurality of frequency bands;
- d) calculating a local spectral parameter from the values of the time-frequency transform.
Dependencies are inferred from the claim text.