US 12,390,198 B2
Ultrasound diagnostic apparatus and control method of ultrasound diagnostic apparatus
Noriji Kato, Tokyo (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Jun. 9, 2023, as Appl. No. 18/332,534.
Claims priority of application No. 2022-107801 (JP), filed on Jul. 4, 2022.
Prior Publication US 2024/0000434 A1, Jan. 4, 2024
Int. Cl. A61B 8/00 (2006.01); A61B 8/08 (2006.01)
CPC A61B 8/523 (2013.01) [A61B 8/085 (2013.01); A61B 8/4254 (2013.01); A61B 8/5223 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An ultrasound diagnostic apparatus that generates a cross-sectional image orthogonal to an observation plane based on a video which is acquired during scanning by an ultrasound probe and in which a lesion part is imaged, the ultrasound diagnostic apparatus comprising:
a processor configured to
set a cross section extraction line passing through the lesion part on one frame image among a plurality of frame images constituting the video,
generate a pseudo orthogonal cross-sectional image orthogonal to the observation plane by arranging, in time series, pixel values on the cross section extraction line in the plurality of frame images, and
generate a normalized pseudo orthogonal cross-sectional image by non-rigidly deforming the pseudo orthogonal cross-sectional image in a horizontal direction,
wherein the processor is further configured to
estimate a displacement amount between a position of a pixel in the pseudo orthogonal cross-sectional image in a case where a scanning speed of the ultrasound probe is made constant and a position of a pixel in the actual pseudo orthogonal cross-sectional image, in each of time points at which the plurality of frame images are captured, and
non-rigidly deform the pseudo orthogonal cross-sectional image based on the displacement amount.