METHOD, APPARATUS AND DEVICE FOR CALCULATION OF SIGNAL ATTENUATION AND MACHINE-READABLE DATA CARRIER Russian patent published in 2023 - IPC A61B8/00 

FIELD: data processing.

SUBSTANCE: group of inventions related to calculating signal attenuation and to a computer-readable data carrier. A device is proposed, including a machine-readable carrier, for implementing the method, in which the following is carried out: reception of an ultrasonic signal penetrating into the tissue; performance of a signal recovery operation on the ultrasonic signal to obtain a calculated ultrasonic signal; determination whether the type of ultrasonic signal to be calculated is a time domain signal or a frequency domain signal, and calculation of attenuation information of the calculated ultrasonic signal by setting a calculation mode corresponding to this type based on the type of ultrasonic signal to be calculated, including: if the calculated ultrasonic signal is a time domain signal, then (a1) obtaining the target data in the calculated ultrasonic signal; (a2) calculating the signal energy of the data in one or more time windows in the target data; (a3) performing an approximation operation on the signal energy in one or more time windows to obtain information about the attenuation of the calculated ultrasonic signal; and if the calculated ultrasonic signal is a frequency domain signal, then (b1) obtaining the target data in the calculated ultrasonic signal; (c2) calculating the signal energy of the data corresponding to one or more time windows in the target data using a windowed Fourier transform; (c3) performing an approximation operation on the signal energy to obtain information about the attenuation of the calculated ultrasonic signal, and the signal reconstruction operation on the ultrasonic signal to obtain the calculated ultrasonic signal includes: determining the system gain and the focusing parameter of the probe corresponding to the ultrasonic signal; performing a signal recovery operation on the ultrasonic signal based on the system gain and the probe focusing parameter to obtain the calculated ultrasonic signal. The present document discloses a method, apparatus and device for calculating signal attenuation and a computer-readable storage medium. The proposed method includes: receiving (101) an ultrasonic signal by an ultrasonic imaging system; performing (102) a signal recovery operation on the ultrasonic signal to obtain a calculated ultrasonic signal; determining a type of ultrasonic signal to be calculated; and calculating (103) attenuation information of the ultrasonic signal to be calculated by setting a calculation mode corresponding to this type based on the type of ultrasonic signal to be calculated. This simplifies the attenuation calculation process, allowing the use of industrial-grade probes, ease of operation, and increased applicability. The accuracy and efficiency of the attenuation calculation can be improved by performing a signal reconstruction operation on the received ultrasonic signal and then performing its attenuation calculation.

EFFECT: group of inventions ensures efficient calculation of signal attenuation.

8 cl, 7 dwg