Patent ID: 11911175
Assignee: ECHOLIGHT S.P.A.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 8:
9. The apparatus (100) according to claim 1, wherein said computer (24) is also configured to compute said memorized
at least one healthy reference spectrum (52) associated with at least one healthy patient,
at least one intermediate reference spectrum associated with an intermediately-healthy patient,
at least one pathological reference spectrum associated with a pathological patient;
by the following steps for an healthy patient, an intermediately-healthy patient or a pathological patient:
selecting, on a sonographic frame a patient's bone region to be used as a model bone region for the calculation of a healthy reference spectrum, or for the calculation of an intermediate reference spectrum or for the calculation of a pathological reference spectrum;
generating a bundle of ultrasound signals along a plurality of propagation lines that meet said model bone region;
on each ultrasound signal reflected by said model bone region, selecting a portion corresponding to a reflection coming from a trabecular region of said model bone region;
calculating, for each signal of said bundle of ultrasound signals a single spectrum, by FFT (Fast Fourier Transform), for said portion corresponding to a reflection coming from a trabecular region;
normalizing each of said single spectra with respect to its own maximum value in such a way that its maximum value becomes 0 dB;
calculating an average spectrum of all said single spectra.