US 12,433,565 B2
Ultrasound diagnostic apparatus and control method of ultrasound diagnostic apparatus
Yukiya Miyachi, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Jul. 31, 2020, as Appl. No. 16/945,617.
Application 16/945,617 is a continuation of application No. PCT/JP2019/003972, filed on Feb. 5, 2019.
Claims priority of application No. 2018-062249 (JP), filed on Mar. 28, 2018.
Prior Publication US 2020/0359989 A1, Nov. 19, 2020
Int. Cl. A61B 8/06 (2006.01); A61B 8/00 (2006.01); A61B 8/08 (2006.01)
CPC A61B 8/06 (2013.01) [A61B 8/0891 (2013.01); A61B 8/488 (2013.01); A61B 8/5246 (2013.01); A61B 8/54 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An ultrasound diagnostic apparatus comprising:
a display; and
a processor configured to
acquire a B mode image in which at least a blood vessel region is imaged;
display the B mode image on the display;
set a Doppler gate within the blood vessel region on the B-mode image;
acquire a blood vessel gradient; and
detect an anterior vascular wall and a posterior vascular wall by performing image analysis on the B-mode image, on an outer side of the Doppler gate in a direction perpendicular to the blood vessel gradient,
wherein the Doppler gate has an upper gate point and a lower gate point which face each other along a scan line passing through a center point of the Doppler gate, and
the processor is further configured to
set an upper projection point by projecting the upper gate point on a blood flow perpendicular line that passes through the center point of the Doppler gate and extends perpendicular to the blood vessel gradient angle;
detect the anterior vascular wall in a range from the upper projection point to a first point positioned in a shallow portion direction apart from the upper projection point by a first predetermined distance along the blood flow perpendicular line;
set a lower projection point by projecting the lower gate point on the blood flow perpendicular line; and
detect the posterior vascular wall in a range from the lower projection point to a second point positioned in a deep portion direction apart from the lower projection point by a second predetermined distance along the blood flow perpendicular line.