US 11,744,552 B2
Ultrasound diagnostic apparatus, medical image processing apparatus, and medical image processing method
Hiroki Takahashi, Nasushiobara (JP); and Takeshi Sato, Nasushiobara (JP)
Assigned to CANON MEDICAL SYSTEMS CORPORATION, Otawara (JP)
Filed by CANON MEDICAL SYSTEMS CORPORATION, Otawara (JP)
Filed on Jan. 9, 2019, as Appl. No. 16/243,256.
Claims priority of application No. 2018-002178 (JP), filed on Jan. 10, 2018.
Prior Publication US 2019/0209133 A1, Jul. 11, 2019
Int. Cl. A61B 8/00 (2006.01); G01S 15/89 (2006.01); A61B 8/08 (2006.01)
CPC A61B 8/4488 (2013.01) [A61B 8/5207 (2013.01); A61B 8/5269 (2013.01); A61B 8/54 (2013.01); G01S 15/89 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An ultrasound diagnostic apparatus, comprising:
processing circuitry configured to
execute transmit aperture synthesis to conduct coherent summation on multiple received signals that are at different transmit apertures and in an identical scan line,
evaluate a degree of consistency between phases of the received signals to calculate an evaluation value at each observation point such that the evaluation value increases as the degree of consistency between the phases increases, wherein the evaluation value is calculated for each of different frequency components included in the received signal of the multiple received signals, and
correct a received signal of the multiple received signals having undergone the transmit aperture synthesis based on the calculated evaluation value.