公开(公告)号：US10856825B2

公开(公告)日：2020-12-08

申请号：US15922977

申请日：2018-03-16

Applicant: Shimadzu Corporation

Inventor： Michel Dargis ,  Wataru Takahashi ,  Keiichi Goto

IPC: A61B6/00 ,  G06T7/11

Abstract: [Purpose] To provide a radiographic imaging apparatus capable of quickly acquiring three-dimensional image data of a target-of-interest when performing an operative procedure such as interventional treatment[Solving Means] A region-of-interest extraction unit 39 extracts a predetermined region as a region-of-interest from each of a series of two-dimensional images. The reconstruction unit 41 reconstructs a three-dimensional image of a region including a stent based on each of the images of the portion corresponding to the region-of-interest. That is, since the reconstruction unit 41 reconstructs each of a series of two-dimensional images P using an image of the region-of-interest corresponding to a part of the whole, the time required to reconstruct the three-dimensional image of the region including the stent can be shortened. As a result, since three-dimensional image data can be quickly obtained for the region requiring the reconstruction, the time required for diagnosis can be greatly shortened, which can reduce the burden on a surgeon and a subject.

公开(公告)号：US10980498B2

公开(公告)日：2021-04-20

申请号：US16066568

申请日：2015-12-28

Applicant: SHIMADZU CORPORATION

Inventor： Shota Sato ,  Wataru Takahashi ,  Michel Dargis ,  Takihito Sakai ,  Keiichi Goto ,  Sebastien Matte

IPC: A61B6/00 ,  A61B6/12 ,  G06K9/46

Abstract: A radiography apparatus sequentially determines, on the basis of the positions of markers as time-sequential feature points (of a plurality of frames), positions at which the markers in the frames are displayed. This makes it possible to display a moving object while the position, direction and size thereof are properly set. Another advantage is that when a plurality of markers are extracted, information relating to the direction and size of the object is retained and the proximal and distal directions of the object and the length of a device (e.g., stent) can be intuitively determined from an image. Since positioning is performed using the plurality of positions of markers and the plurality of display positions, the position and direction of a corrected image to be finally displayed can also be set properly.

公开(公告)号：US10959692B2

公开(公告)日：2021-03-30

申请号：US16060596

申请日：2015-12-09

Applicant: SHIMADZU CORPORATION

Inventor： Koki Yoshida ,  Keiichi Goto ,  Dai Hirose

IPC: A61B6/00 ,  A61B6/03 ,  A61B6/04

Abstract: An X-ray imaging apparatus includes an X-ray tube (1), an FPD (2), a holding unit (4) that holds the X-ray tube and the FPD, which face each other, a table (3) on which a subject is placed, and a control unit (5) that controls the movement of the holding unit so as to control an X-ray irradiation direction of the X-ray tube and an X-ray detection direction of the FPD in an interlocking response with a relative position of the table to the X-ray tube and the FPD or based on an operation during X-ray imaging, when the X-ray imaging apparatus performs the X-ray imaging while relatively moving the table with respect to the X-ray tube and the FPD.

公开(公告)号：US10813609B2

公开(公告)日：2020-10-27

申请号：US16063486

申请日：2015-12-18

Applicant: Shimadzu Corporation

Inventor： Keiichi Goto ,  Takanori Yoshida

IPC: A61B6/00 ,  A61B6/04

Abstract: This X-ray imaging apparatus (100) includes an X-ray irradiation detection unit (1) including an X-ray tube (11) and an FPD (2), a table (2) on which a subject (10) is placed, and a control unit (3) that synthesizes a first X-ray image obtained by sequentially performing X-ray imaging using a contrast medium while moving the table relative to the X-ray irradiation detection unit and a second X-ray image obtained by radiographing, without using the contrast medium, the subject at one position selected based on the first X-ray image.