US 12,295,792 B2
Method, apparatus and device for calculating signal attenuation, and computer-readable storage medium
Qiong He, Jiangsu (CN); Jinhua Shao, Jiangsu (CN); Jin Sun, Jiangsu (CN); and Houli Duan, Jiangsu (CN)
Assigned to Wuxi Hisky Medical Technologies Co., Ltd., Jiangsu (CN)
Appl. No. 17/631,098
Filed by WUXI HISKY MEDICAL TECHNOLOGIES CO., LTD., Jiangsu (CN)
PCT Filed Jul. 28, 2020, PCT No. PCT/CN2020/105008
§ 371(c)(1), (2) Date Jan. 28, 2022,
PCT Pub. No. WO2021/018102, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 201910706619.7 (CN), filed on Aug. 1, 2019.
Prior Publication US 2022/0249063 A1, Aug. 11, 2022
Int. Cl. A61B 8/00 (2006.01); G01N 29/11 (2006.01); G01N 29/38 (2006.01); G01N 29/44 (2006.01)
CPC A61B 8/5207 (2013.01) [A61B 8/5223 (2013.01); G01N 29/11 (2013.01); G01N 29/38 (2013.01); G01N 29/4418 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for calculating signal attenuation, comprising:
receiving an ultrasound signal propagating in a tissue by an ultrasound imaging system;
performing a signal recovery operation on the ultrasound signal propagating in a tissue to obtain a recovered ultrasound signal; and
determining a type of the recovered ultrasound signal, wherein the type of the recovered ultrasound signal is either a time-domain signal or a frequency-domain signal, and calculating attenuation information of the recovered ultrasound signal by adopting a calculation mode corresponding to the type according to the type of the recovered ultrasound signal so as to achieve signal attenuation calculation by use of a commercial probe,
wherein performing the signal recovery operation on the ultrasound signal propagating in the tissue to obtain a recovered ultrasound signal comprises:
determining a system gain parameter and a probe focusing parameter corresponding to the ultrasound signal propagating in a tissue; and
performing the signal recovery operation on the ultrasound signal propagating in the tissue according to the system gain parameter and the probe focusing parameter to obtain the recovered ultrasound signal,
wherein determining the type of the recovered ultrasound signal and calculating attenuation information of the recovered ultrasound signal by adopting a calculation mode corresponding to the type according to the type of the recovered ultrasound signal comprises:
obtaining data of interest in the recovered ultrasound signal if the recovered ultrasound signal is the time-domain signal;
calculating signal energy of data in one or more time windows in the data of interest; and
performing a fitting operation on the signal energy in the one or more time windows to obtain the attenuation information of the recovered ultrasound signal, and wherein determining the type of the recovered ultrasound signal and calculating attenuation information of the recovered ultrasound signal by adopting a calculation mode corresponding to the type according to the type of the recovered ultrasound signal further comprises:
obtaining data of interest in the recovered ultrasound signal if the recovered ultrasound signal is the frequency-domain signal;
calculating signal energy of data corresponding to one or more time windows in the data of interest through short-time Fourier transform; and
performing a fitting operation on the signal energy to obtain the attenuation information of the recovered ultrasound signal.