公开(公告)号：US20240065652A1

公开(公告)日：2024-02-29

申请号：US18356161

申请日：2023-07-20

Applicant: FUJIFILM CORPORATION

Inventor： Sho SHIMIZUKAWA ,  Takashi TAJIMA ,  Tatsuya TANEICHI ,  Naoyuki NISHINO ,  Hisatsugu HORIUCHI

IPC: A61B6/00 ,  A61B6/03

CPC classification number: A61B6/4014 ,  A61B6/032 ,  A61B6/5247 ,  A61B6/54 ,  A61B6/0478

Abstract: A CT apparatus includes a plurality of imaging units, a rotation mechanism, a radiation source elevating mechanism, a detector elevating mechanism, and a CPU. The imaging unit 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. The rotation mechanism rotates the plurality of imaging units around a body axis of the subject. The radiation source elevating mechanism and the detector elevating mechanism change an interval between the plurality of imaging units in a rotation axis direction. An imaging control unit of the CPU controls operations of the plurality of imaging units, the rotation mechanism, the radiation source elevating mechanism, and the detector elevating mechanism.

公开(公告)号：US20240065646A1

公开(公告)日：2024-02-29

申请号：US18448980

申请日：2023-08-14

Applicant: FUJIFILM CORPORATION

Inventor： Sho SHIMIZUKAWA ,  Tatsuya TANEICHI ,  Takashi TAJIMA ,  Naoyuki NISHINO ,  Hisatsugu HORIUCHI

IPC: A61B6/03 ,  A61B6/00

CPC classification number: A61B6/035 ,  A61B6/4014 ,  A61B6/4085

Abstract: A radiation source includes a radiation tube having a cathode which is a cold cathode. An imaging control unit directs the radiation source to intermittently and alternately emit the first radiation having a first energy distribution and the second radiation having a second energy distribution different from the first energy distribution whenever a rotation mechanism rotates the radiation source and a radiation detector by a preset angle. The imaging control unit directs the radiation detector to output a first projection image based on the first radiation and a second projection image based on the second radiation which are obtained by the intermittent emission of the first radiation and the second radiation. An image processing unit generates a tomographic image on the basis of the first projection image and the second projection image.

公开(公告)号：US20230168393A1

公开(公告)日：2023-06-01

申请号：US18055838

申请日：2022-11-16

Applicant: FUJIFILM CORPORATION

Inventor： Sho SHIMIZUKAWA ,  Koji YAMAMOTO

IPC: G01T1/175 ,  G01T1/20

CPC classification number: G01T1/175 ,  G01T1/20184

Abstract: An electronic cassette has a detection panel (light detection substrate) in which pixels for accumulating electric charges corresponding to radiation are arranged. The electronic cassette includes two gate control circuits that control an operation of a gate drive circuit, a power supply circuit that supplies power to the gate control circuits, a first wiring line, and a second wiring line. The first wiring line connects the power supply circuit and each of two gate control circuits to each other, and supplies each of two gate control circuits with the power supplied from the power supply circuit. The second wiring line connects two gate control circuits to each other. The power supplied from the power supply circuit to one of two gate control circuits is diverted to the other, through the second wiring line.

公开(公告)号：US20230018119A1

公开(公告)日：2023-01-19

申请号：US17806734

申请日：2022-06-14

Applicant: FUJIFILM CORPORATION

Inventor： Hisatsugu HORIUCHI ,  Sho SHIMIZUKAWA ,  Masakazu FUKUYO ,  Naoyuki NISHINO ,  Takashi TAJIMA

IPC: A61B6/02 ,  A61B6/00

Abstract: A radiation detector has a sensor panel unit which includes two sensor panels and in which end portions of the two sensor panels are arranged to overlap each other in a thickness direction. An image processing unit acquires two projection images from the two sensor panels. A combination unit of the image processing unit performs a process related to image quality on the projection image in a case in which a tomographic image which is a diagnosis image to be used for a doctor's diagnosis is generated and does not perform the process related to image quality on the projection image in a case in which a scout image which is a confirmation image for confirming a reflected state of the subject is generated.

公开(公告)号：US20220141398A1

公开(公告)日：2022-05-05

申请号：US17505641

申请日：2021-10-20

Applicant: FUJIFILM CORPORATION

Inventor： Koichi KITANO ,  Sho SHIMIZUKAWA ,  Kentaro NOMA

IPC: H04N5/32 ,  H04W76/15 ,  H04N7/18 ,  G06F3/14 ,  G06F3/02

Abstract: A radiation detector can perform wireless communication and includes a CPU that is provided in a housing accommodating a radiation detection unit. The CPU receives an instruction to change a connection destination of the wireless communication which is input by operating an operation button that is provided in the housing to input the instruction to change the connection destination and specifies a connection destination corresponding to the change instruction from a plurality of preset connection destinations in a case in which the change instruction is received. The CPU determines whether or not a connection to the plurality of connection destinations by the wireless communication is possible. The CPU performs control to display information indicating that the connection is not possible on a display unit provided in the housing in a case in which it is determined that the connection to the specified connection destination by the wireless communication is not possible.