公开(公告)号：US10746671B2

公开(公告)日：2020-08-18

申请号：US15556086

申请日：2015-03-06

申请人： GE Sensing & Inspection Technolgies GmbH

发明人： Alexander Suppes ,  Nils Rothe

IPC分类号： A61B6/03 ,  A61B6/00 ,  G01N23/046 ,  G21K1/02

摘要： A method for imaging an object is presented. The method includes acquiring a first projection image of the object using a source and a detector, positioning a scatter rejecting aperture plate between the object and the detector, and acquiring a second projection image of the object with the scatter rejecting aperture plate disposed between the object and the detector. A scatter image of the object is generated based on the first projection image and the second projection image, and stored for subsequent imaging. A volumetric CT system for imaging an object is also presented. The system is configured to acquire a plurality of projection images of the object from a plurality of plurality of projection angles.

公开(公告)号：US10739281B2

公开(公告)日：2020-08-11

申请号：US15318962

申请日：2015-06-01

申请人： CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  ECOLE NORMALE SUPERIEURE DE CACHAN

发明人： François Hild ,  Hugo Leclerc ,  Stéphane Roux

IPC分类号： G01N23/046 ,  G01B15/06 ,  G01N3/08

摘要： A tomography scanner includes at least one first emission source (GX1), one first matrix detector (D1), and a computer (C) arranged to produce an initial tomography of an object (E) based on radiographs arising from the first matrix detector, taken from various angles. The tomography scanner further includes a second emission source (GX2) and a second matrix detector (D2) arranged so that, when the object is subjected to a loading that is known at a given instant in time, the computer determines the changes in the object subjected to said loading based only on the information from the first radiograph of the object under loading arising from the first matrix detector, from the second radiograph of the object under loading arising from the second matrix detector and the initial tomograph, the first radiograph and the second radiograph being taken simultaneously at the same given instant in time.

公开(公告)号：US10736590B2

公开(公告)日：2020-08-11

申请号：US15509042

申请日：2015-09-16

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Dirk Schafer ,  Michael Grass ,  Thomas Koehler ,  Roland Proksa

IPC分类号： A61B6/03 ,  A61B6/00 ,  G01N23/046

摘要： A method includes receiving radiation with a hybrid data detection system of an imaging system. The hybrid data detection system includes a hybrid data detector array with a set of spectral detectors and a set of integrating detectors that are arranged along a transverse axis of an examination region. The method further includes generating a set of truncated spectral projections with the first set of spectral detectors. The method further includes estimating a set of spectral projections for the integrating detectors. The method further includes combining the set of truncated spectral projections and the estimated set of spectral projections. The method further includes estimating a set of spectral projections based on the combined set to produce a complete set of spectral projections. The method further includes processing the complete set of spectral projections to generate volumetric image data.

公开(公告)号：US20200242817A1

公开(公告)日：2020-07-30

申请号：US16852609

申请日：2020-04-20

申请人： SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

发明人： Wenjing CAO ,  Stanislav ZABIC

IPC分类号： G06T11/00 ,  A61B6/03 ,  G01N23/046 ,  A61B6/00 ,  G06T5/00 ,  G06T5/20

摘要： The present disclosure provides a system and method for CT image reconstruction. The method may include combining an analytic image reconstruction technique with an iterative reconstruction algorithm of CT images. The image reconstruction may be performed on or near a region of interest.

公开(公告)号：US10724971B2

公开(公告)日：2020-07-28

申请号：US15772968

申请日：2015-11-05

申请人： Shimadzu Corporation

发明人： Daisuke Harada ,  Shuhei Onishi ,  Ryo Takahashi ,  Yasuyuki Keyaki

IPC分类号： G01N23/04 ,  A61B6/03 ,  G06T11/60 ,  G06T11/00 ,  G01N23/046 ,  A61B5/00 ,  A61B6/00

摘要： A plurality of CT imaging conditions are created beforehand as presets, each preset is created beforehand as an icon, and each preset is associated with an icon and registered. Each icon is disposed in a CT imaging condition setting screen according to a spatial resolution and density resolution that serve as two-dimensional indexes relating to image quality. The selection of a given icon by a user results in the selection of the CT imaging conditions corresponding to the selected icon. The indexes relate to image quality and are two-dimensional, and this facilitates operation and makes it possible to intuitively select optimal CT imaging conditions with a small number of steps.

公开(公告)号：US10722192B2

公开(公告)日：2020-07-28

申请号：US16258262

申请日：2019-01-25

申请人： Carl Zeiss Industrielle Messtechnik GmbH

发明人： Marco Erler ,  Daniel Weiss ,  Wolfgang Kimmig ,  Martin Krenkel

IPC分类号： A61B6/00 ,  A61B6/03 ,  G01N23/046 ,  H05G1/02 ,  A61B6/06 ,  G21K1/04

摘要： A variable stop apparatus for arrangement between an X-ray source and an object to be measured in a CT-scanner and a CT-scanner including the variable stop apparatus are provided. The variable stop apparatus includes a stop carrier that is pivotable about a pivot axis. The stop carrier has at least two stops. The at least two stops are in each case configured to be brought into a predetermined angular position by pivoting the stop carrier. The at least two stops are arranged at different longitudinal positions with respect to a longitudinal direction that is defined by the pivot axis.

公开(公告)号：US10718724B2

公开(公告)日：2020-07-21

申请号：US16182467

申请日：2018-11-06

申请人： Jon M Frenn

发明人： Jon M Frenn

IPC分类号： G06K9/00 ,  G01N23/046 ,  G06T11/00

摘要： A method of qualifying physical components using computed tomography (CT) includes obtaining qualified CT data from a CT scanner for at least one qualified physical component. Qualification data is generated based on the qualified CT data, where the qualification data defines a qualification envelope. Candidate CT data is obtained from the CT scanner for a candidate physical component. Comparison data is then generated based on the candidate CT data and the qualification data, where the comparison data indicates whether the candidate CT data is within the qualification envelope defined by the qualification data. An acceptance signal is generated if the comparison data meets acceptance criteria.

公开(公告)号：US10713822B2

公开(公告)日：2020-07-14

申请号：US16147378

申请日：2018-09-28

申请人： Samsung Electronics Co., Ltd.

发明人： Sang-min Lee ,  Dong-uk Kang ,  Do-il Kim

IPC分类号： A61B5/00 ,  A61B6/00 ,  G06T11/00 ,  G01T1/164 ,  G01T1/24 ,  H04N5/3745 ,  H04N5/32 ,  G01T1/20 ,  G01T1/17 ,  A61B6/02 ,  G01J1/44 ,  G01T1/29 ,  G01J1/46 ,  G01N23/046 ,  G01V5/00

摘要： A tomographic imaging apparatus includes an X-ray detector comprising a plurality of dual mode pixels and configured to detect radiation that has passed through an object, and at least one processor configured to obtain scan data from the X-ray detector, and control each pixel of the plurality of dual mode pixels to operate in one of a first mode and a second mode, wherein each pixel of the plurality of dual mode pixels includes a sensor configured to generate a scan signal by converting incident radiation into an electric signal, a first signal path circuit configured to transmit the scan signal in the first mode, a second signal path circuit configured to transmit the scan signal in the second mode, and a photon counter configured to count photons from the scan signal transmitted through one of the first and second signal path circuits.

公开(公告)号：US20200217973A1

公开(公告)日：2020-07-09

申请号：US16824341

申请日：2020-03-19

申请人： Shanghai Neusoft Medical Technology Co., Ltd.

发明人： Shuangxue LI ,  Yiming ZHU ,  Jun YU

IPC分类号： G01T7/00 ,  G01T1/29 ,  G01N23/046

摘要： Devices and methods of testing leaking rays are provided. In one aspect, a device includes a first rotary arm configured to rotate around a first rotary axis, a second rotary arm rotatably connected with the first rotary arm and configured to rotate around a second rotary axis, a probe mounted on a rotating end of the second rotary arm and configured to measure a numerical value of leaking rays at each position at which the probe stays, a mounting base rotatably connected with the second rotary arm and configured to mount a ray source component, a first driving unit configured to drive the first rotary arm to rotate around the first rotary axis, and a second driving unit configured to drive the second rotary arm to rotate around the second rotary axis, the first rotary axis being perpendicular to the second rotary axis.

公开(公告)号：US10702235B2

公开(公告)日：2020-07-07

申请号：US16024111

申请日：2018-06-29

申请人： SHENZHEN UNITED IMAGING HEALTHCARE CO., LTD.

发明人： Bing Tang

IPC分类号： A61B6/00 ,  G01N23/046 ,  G06T11/00

摘要： A method may include obtaining an initial image that is captured by scanning a scan object using the imaging device. The method may also include performing an iteration process including one or more iterations. Each of the one or more iterations may include determining, according to a thickness model, an equivalent thickness associated with the scan object based on a brightness of a first image and the target brightness, determining one or more second exposure parameters corresponding to the equivalent thickness and the target brightness based on the thickness model, and generating a second image by directing the imaging device to scan the scan object based on the one or more second exposure parameters using the imaging device. The first image may be the initial image in a first iteration of the one or more iterations or an image generated in a previous iteration.