公开(公告)号：EP3450967A1

公开(公告)日：2019-03-06

申请号：EP18191150.4

申请日：2018-08-28

申请人： Shimadzu Corporation

发明人： SANO, Satoshi ,  SHIRAI, Taro ,  DOKI, Takahiro ,  HORIBA, Akira ,  MORIMOTO, Naoki ,  KIMURA, Kenji ,  MIZUSHIMA, Hiroshi

IPC分类号： G01N23/041 ,  A61B6/00 ,  A61B6/03

摘要： The X-ray imaging apparatus (100) is provided with a plurality of gratings including an X-ray source (1) and a first grating (2), a detector (4), a grating rotation mechanism (7) for rotating a plurality of gratings respectively, and an image processor (5) for generating at least a dark field image (13). The image processor is configured to generate a dark field image captured by arranging the grating at a plurality of angles in a plane (XY plane) orthogonal to the optical axis direction (Z-direction).

公开(公告)号：EP3462166A3

公开(公告)日：2019-04-17

申请号：EP18194139.4

申请日：2018-09-13

申请人： Shimadzu Corporation

发明人： DOKI, Takahiro ,  KIMURA, Kenji ,  SHIRAI, Taro ,  SANO, Satoshi ,  HORIBA, Akira ,  MORIMOTO, Naoki ,  MIZUSHIMA, Hiroshi

IPC分类号： G01N23/04 ,  A61B6/00 ,  G01N23/041

摘要： A radiation phase contrast imaging apparatus (100) is provided with an image signal generation system (3) including an X-ray source (1) and an image signal detector (2), a plurality of gratings including a first grating (4) and a second grating (5), a holder (6) for holding a plurality of gratings in a suspended manner, and a position switching mechanism (8) for switching the relative position of the plurality of gratings with respect to the image signal generation system between the retracted position and the detection position. Either one of the plurality of gratings and the image signal generation system is held by a single holder.

公开(公告)号：EP3417782A1

公开(公告)日：2018-12-26

申请号：EP18175122.3

申请日：2018-05-30

申请人： Shimadzu Corporation

发明人： SANO, Satoshi ,  SHIRAI, Taro ,  DOKI, Takahiro ,  HORIBA, Akira ,  MORIMOTO, Naoki

IPC分类号： A61B6/00

CPC分类号： A61B6/5235 ,  A61B6/484 ,  A61B6/5264

摘要： The X-ray imaging apparatus (100) is equipped with an image processing unit (5) for performing a position adjustment of a first dark field image (11) and a second dark field image (13) based on a positional difference amount between a first absorption image (10) of an object (T) and a second absorption image (12) of the object.

公开(公告)号：EP3462166A2

公开(公告)日：2019-04-03

申请号：EP18194139.4

申请日：2018-09-13

申请人： Shimadzu Corporation

发明人： DOKI, Takahiro ,  KIMURA, Kenji ,  SHIRAI, Taro ,  SANO, Satoshi ,  HORIBA, Akira ,  MORIMOTO, Naoki ,  MIZUSHIMA, Hiroshi

IPC分类号： G01N23/04 ,  A61B6/00

摘要： A radiation phase contrast imaging apparatus (100) is provided with an image signal generation system (3) including an X-ray source (1) and an image signal detector (2), a plurality of gratings including a first grating (4) and a second grating (5), a holder (6) for holding a plurality of gratings in a suspended manner, and a position switching mechanism (8) for switching the relative position of the plurality of gratings with respect to the image signal generation system between the retracted position and the detection position. Either one of the plurality of gratings and the image signal generation system is held by a single holder.

公开(公告)号：EP3391821A3

公开(公告)日：2018-11-28

申请号：EP18000380.8

申请日：2018-04-18

申请人： Shimadzu Corporation

发明人： MORIMOTO, Naoki ,  SHIRAI, Taro ,  DOKI, Takahiro ,  SANO, Satoshi ,  HORIBA, Akira

IPC分类号： A61B6/00 ,  G01N23/20

CPC分类号： G01N23/041 ,  A61B6/4035 ,  A61B6/4291 ,  A61B6/484 ,  A61B6/5211 ,  A61B6/5264 ,  A61B6/547 ,  A61B6/584 ,  G01N23/20075 ,  G01N2223/1016 ,  G01N2223/401

摘要： An X-ray phase contrast imaging system (100) includes an X-ray source (1), a detector (5), a plurality of gratings including a first grating (3) and a second grating (4), and a grating positional displacement acquisition unit (6) configured to obtain a positional displacement of the grating based on a Fourier transform image (14) obtained by Fourier transforming an interference fringe image (13) detected by the detector.

公开(公告)号：EP3417783A1

公开(公告)日：2018-12-26

申请号：EP18177512.3

申请日：2018-06-13

申请人： Shimadzu Corporation

发明人： HORIBA, Akira ,  SHIRAI, Taro ,  DOKI, Takahiro ,  SANO, Satoshi ,  MORIMOTO, Naoki

IPC分类号： A61B6/00 ,  G01N23/041

摘要： This X-ray phase-contrast imaging apparatus (100) is equipped with a plurality of gratings and grating holders (7) for holding the plurality of gratings. The plurality of gratings is arranged such that the extending direction of grating components of the plurality of gratings is oriented in a direction in which the positional displacement due to the grating holder becomes maximum in a plane orthogonal to an optical axis of the X-ray.

公开(公告)号：EP3391821A2

公开(公告)日：2018-10-24

申请号：EP18000380.8

申请日：2018-04-18

申请人： Shimadzu Corporation

发明人： MORIMOTO, Naoki ,  SHIRAI, Taro ,  DOKI, Takahiro ,  SANO, Satoshi ,  HORIBA, Akira

IPC分类号： A61B6/00 ,  G01N23/20

CPC分类号： G01N23/041 ,  A61B6/4035 ,  A61B6/4291 ,  A61B6/484 ,  A61B6/5211 ,  A61B6/5264 ,  A61B6/547 ,  A61B6/584 ,  G01N23/20075 ,  G01N2223/1016 ,  G01N2223/401

摘要： An X-ray phase contrast imaging system (100) includes an X-ray source (1), a detector (5), a plurality of gratings including a first grating (3) and a second grating (4), and a grating positional displacement acquisition unit (6) configured to obtain a positional displacement of the grating based on a Fourier transform image (14) obtained by Fourier transforming an interference fringe image (13) detected by the detector.

公开(公告)号：EP3417783B1

公开(公告)日：2020-04-15

申请号：EP18177512.3

申请日：2018-06-13

申请人： Shimadzu Corporation

发明人： HORIBA, Akira ,  SHIRAI, Taro ,  DOKI, Takahiro ,  SANO, Satoshi ,  MORIMOTO, Naoki

IPC分类号： A61B6/00 ,  G01N23/041

公开(公告)号：EP3449836A1

公开(公告)日：2019-03-06

申请号：EP18191900.2

申请日：2018-08-31

申请人： Shimadzu Corporation

发明人： SANO, Satoshi ,  SHIRAI, Taro ,  DOKI, Takahiro ,  HORIBA, Akira ,  MORIMOTO, Naoki

IPC分类号： A61B6/12 ,  A61B6/00 ,  B29C70/00 ,  G01N23/20 ,  G01N23/201 ,  A61B6/03 ,  G01N23/046 ,  G01N23/041

摘要： The X-ray imaging apparatus (100) is provided with an X-ray source (1), a plurality of gratings including a first grating (2) and a second grating (3), a detector (4), a rotation mechanism (7) for relatively rotating a subject including a fiber bundle (10) and an imaging system (23), and an image processor (5) for generating a dark field image (13). The image processor is configured to obtain a three-dimensional dark field image (21) of the subject including at least the fiber bundle from a plurality of dark field images captured at a plurality of rotation angles.