US 12,446,852 B2
Ultrasound diagnostic apparatus, medical image analytic apparatus, and non-transitory computer readable storage medium storing medical image analysis program
Yasuhiko Abe, Otawara (JP); and Koichiro Kurita, Nasushiobara (JP)
Assigned to CANON MEDICAL SYSTEMS CORPORATION, Otawara (JP)
Filed by CANON MEDICAL SYSTEMS CORPORATION, Otawara (JP)
Filed on Mar. 18, 2022, as Appl. No. 17/655,438.
Claims priority of application No. 2021-051077 (JP), filed on Mar. 25, 2021.
Prior Publication US 2022/0304651 A1, Sep. 29, 2022
Int. Cl. A61B 8/08 (2006.01); A61B 8/00 (2006.01)
CPC A61B 8/0883 (2013.01) [A61B 8/485 (2013.01); A61B 8/5223 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An ultrasound diagnostic apparatus, comprising:
an ultrasound probe configured to transmit an ultrasonic wave to a subject and receive the ultrasonic wave reflected;
processing circuitry configured to obtain information indicative of a plurality of cardiac function indexes for at least two or more of a left ventricle, a right ventricle, a left atrium, and a right atrium from an apical 4-chamber moving image of the subject for one or more heartbeats acquired based on a signal from the ultrasound probe; and
a display that displays the information indicative of the plurality of cardiac function indexes,
wherein the processing circuitry is further configured to:
automatically detect, from the apical 4-chamber moving image, a boundary group representing boundary positions of the cardiac chambers in at least one or more cardiac cycle phases,
track the boundary group in the apical 4-chamber moving image in a remaining cardiac cycle phase different from a cardiac cycle phase in which the boundary group has been automatically detected; and
obtain the boundary positions of the cardiac chambers in an interval of at least the one or more heartbeats by tracking the boundary group.