公开(公告)号：US20180199906A1

公开(公告)日：2018-07-19

申请号：US15923192

申请日：2018-03-16

Applicant: FUJIFILM Corporation

Inventor： Takeyasu KOBAYASHI ,  Naokazu KAMIYA

IPC: A61B6/00 ,  A61B6/10 ,  A61B6/02

Abstract: A control unit of a radiation imaging apparatus performs control of moving a radiation source, and emitting radiation from the radiation source at a plurality of positions at which incidence angles of the radiation to a breast of a subject are different from each other. The control unit performs control of causing a radiation detector to detect the radiation emitted from the radiation source at the plurality of positions. The control unit performs control of moving the radiation source at a movement speed corresponding to a position of the radiation source for a subject face proximate position.

公开(公告)号：US20170243379A1

公开(公告)日：2017-08-24

申请号：US15415867

申请日：2017-01-26

Applicant: FUJIFILM CORPORATION

Inventor： Takahisa ARAI ,  Naokazu KAMIYA ,  Takeyasu KOBAYASHI

IPC: G06T11/00 ,  A61B6/02 ,  G06T7/00 ,  A61B6/00

CPC classification number: G06T11/006 ,  A61B6/025 ,  A61B6/502 ,  A61B6/5217 ,  G06T7/0012 ,  G06T7/0016 ,  G06T11/005 ,  G06T2207/10081 ,  G06T2207/30068 ,  G06T2207/30096 ,  G06T2210/41

Abstract: A tomographic image generation device includes a projection image acquisition section configured to acquire plural projection images obtained by radiating radiation onto a breast in sequence from plural radiation angles and by performing imaging at each of the plural radiation angles; a mammary gland density acquisition section configured to acquire a mammary gland density of the breast; a derivation section configured to derive a slice thickness that decreases as the mammary gland density acquired by the mammary gland density acquisition section increases; and a generation section configured to generate a tomographic image at the slice thickness derived by the derivation section based on the plural projection images acquired by the projection image acquisition section.

公开(公告)号：US20170086773A1

公开(公告)日：2017-03-30

申请号：US15275486

申请日：2016-09-26

Applicant: FUJIFILM CORPORATION

Inventor： Naokazu KAMIYA

IPC: A61B6/00 ,  A61B6/02 ,  A61B6/04

CPC classification number: A61B6/54 ,  A61B6/025 ,  A61B6/0414 ,  A61B6/0457 ,  A61B6/465 ,  A61B6/502 ,  A61B6/5205 ,  A61B6/542

Abstract: A control device includes: a radiation source controller that is configured to control a radiation source such that, by moving the radiation source, an incident angle of radiation with respect to a detection face of a radiation detector is plural angles including a first angle where an incident direction of radiation with respect to the detection face is a direction of a normal line to the detection face, and plural second angles different from the first angle; and an imaging controller that is configured to effect control of performing radiographic imaging plural times at a position of the radiation source where the incident angle is the first angle, and performing radiographic imaging a number of times that is less than the plural times at each position of the radiation source where the incident angle is one of the second angles.