US 12,478,337 B2
Computed tomography apparatus
Sho Shimizukawa, Kanagawa (JP); Takashi Tajima, Kanagawa (JP); Tatsuya Taneichi, Kanagawa (JP); Naoyuki Nishino, Kanagawa (JP); and Hisatsugu Horiuchi, Kanagawa (JP)
Assigned to FUJIFILM CORPORATION, Tokyo (JP)
Filed by FUJIFILM CORPORATION, Tokyo (JP)
Filed on Jul. 20, 2023, as Appl. No. 18/356,163.
Claims priority of application No. 2022-132602 (JP), filed on Aug. 23, 2022.
Prior Publication US 2024/0065653 A1, Feb. 29, 2024
Int. Cl. A61B 6/00 (2024.01); A61B 6/03 (2006.01); A61B 6/04 (2006.01); A61B 6/40 (2024.01)
CPC A61B 6/4014 (2013.01) [A61B 6/032 (2013.01); A61B 6/0478 (2013.01); A61B 6/54 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A computed tomography apparatus comprising:
a plurality of imaging units each of which includes a radiation source that emits radiation having a quadrangular pyramid shape to a subject and a radiation detector in which a plurality of pixels detecting the radiation transmitted through the subject are two-dimensionally arranged;
a rotation mechanism that rotates the plurality of imaging units around a body axis of the subject while maintaining a disposition interval; and
a processor that controls operations of the plurality of imaging units and the rotation mechanism,
wherein an angular interval that is determined by a frame rate of the radiation detector and a rotation speed of the imaging unit and that defines an acquisition time of a projection image based on the radiation is the same for the plurality of imaging units,
the plurality of imaging units have different phases in a rotation direction, and
positions where the plurality of imaging units acquire the projection images are separated by a set angle that is less than the angular interval.