US 12,268,539 B2
Radiation imaging apparatus, radiation imaging system, control apparatus, control method, and non-transitory computer-readable storage medium
Hiroto Ueno, Kanagawa (JP); and Ryosuke Miura, Chiba (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on May 16, 2022, as Appl. No. 17/663,540.
Claims priority of application No. 2021-087189 (JP), filed on May 24, 2021.
Prior Publication US 2022/0370026 A1, Nov. 24, 2022
Int. Cl. A61B 6/00 (2024.01); A61B 6/42 (2024.01)
CPC A61B 6/4447 (2013.01) [A61B 6/5205 (2013.01); A61B 6/4233 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radiation imaging apparatus, comprising:
an imaging region in which a plurality of pixels configured to generate signals to acquire a radiation image corresponding to incident radiation are arranged;
a controller configured to set a detection region as a region to be used to detect the radiation in addition to acquisition of the radiation image in the imaging region; and
a rotation detector, wherein
when the imaging region is arranged to face a subject, the rotation detector is configured to detect a rotation angle of a reference portion of the imaging region about an axis in a normal direction of the imaging region with respect to a reference direction of the subject,
the controller is configured to decide, in accordance with a part to be imaged of the subject and the rotation angle, a side located in the same direction as the reference direction of the subject among a plurality of sides defining an outer edge of the imaging region,
the controller is configured to set by adjusting a position of the detection region so that a distance from the side to the detection region is equal to a predetermined distance for imaging of the part to be imaged, and
the controller is configured to control imaging based on a dose of the radiation entering the adjusted detection region.