公开(公告)号：US20240265590A1

公开(公告)日：2024-08-08

申请号：US18106614

申请日：2023-02-07

申请人： GE Precision Healthcare LLC

发明人： Arka Datta ,  John Moore Boudry ,  Roy-Arnulf Helge Nilsen ,  Brian Edward Nett ,  Holly Ann McDaniel

IPC分类号： G06T11/00 ,  A61B6/00 ,  A61B6/03

CPC分类号： G06T11/005 ,  A61B6/032 ,  A61B6/52

摘要： A computer-implemented method includes generating an image from scan data acquired during a non-diagnostic scan utilizing a computed tomography scanner. The computer-implemented method also includes performing object segmentation based on pixel connectivity on the image to generate segmented regions. The computer-implemented method further includes characterizing pixel connectivity properties of the segmented regions. The computer-implemented method still further includes obtaining respective bounding shape coordinates and area for bounding shapes of the segmented regions.

公开(公告)号：US20240206839A1

公开(公告)日：2024-06-27

申请号：US18434312

申请日：2024-02-06

申请人： Mazor Robotics Ltd.

发明人： Noam Weiss

IPC分类号： A61B6/00 ,  G06T5/50 ,  G06T5/90

CPC分类号： A61B6/52 ,  A61B6/5241 ,  G06T5/50 ,  G06T5/90 ,  G06T2207/10116

摘要： Systems, methods, and devices for capturing a single image with multiple exposures is provided. An imaging device may be provided comprising a source configured to emit a wave for a time period and a detector configured to receive a signal indicative of the wave. A wave may be emitted for a time period and a signal may be received indicative of the emitted wave. A first image dataset may be saved with a first timestamp referencing a first time within the time period. A second image dataset may be saved with a second timestamp referencing a second time within the time period. The second time may occur after the first time.

公开(公告)号：US20240180501A1

公开(公告)日：2024-06-06

申请号：US18285144

申请日：2021-12-27

申请人： SHIMADZU CORPORATION

发明人： Erzhong HU ,  Naomasa HOSOMI

IPC分类号： A61B6/12 ,  A61B6/00 ,  A61B6/46 ,  G16H40/63

CPC分类号： A61B6/12 ,  A61B6/463 ,  A61B6/52 ,  A61B6/54 ,  G16H40/63

摘要： An X-ray imaging apparatus is provided with an X-ray irradiation unit, an X-ray detection unit, an X-ray image generation unit, a display unit, and a control unit. The control unit includes an enhanced image generation unit that generates, as an enhanced image, at least one of an output image of a trained model and a composite image generated based on the output image and the X-ray image, based on the trained model, and an image output unit configured to make the display unit display the X-ray image and at least one of the output image and the composite image simultaneously or switchably.

公开(公告)号：US11986336B2

公开(公告)日：2024-05-21

申请号：US17979061

申请日：2022-11-02

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Chuanyong Bai ,  Yang-Ming Zhu ,  Sheng Lu ,  Shiyu Xu ,  Hao Dang ,  Hao Lai ,  Douglas McKnight ,  Hui Wang

IPC分类号： A61B6/00 ,  A61B6/03 ,  G06N3/08 ,  G16H30/40

CPC分类号： A61B6/52 ,  A61B6/032 ,  G06N3/08 ,  G16H30/40 ,  A61B6/483

摘要： A non-spectral computed tomography scanner includes a radiation source configured to emit x-ray radiation, a detector array configured to detect x-ray radiation and generate non-spectral data, and a memory configured to store a spectral image module that includes computer executable instructions including a neural network trained to produce spectral volumetric image data. The neural network is trained with training spectral volumetric image data and training non-spectral data. The non-spectral computed tomography scanner further includes a processor configured to process the non-spectral data with the trained neural network to produce spectral volumetric image data.

公开(公告)号：US20240148345A1

公开(公告)日：2024-05-09

申请号：US18403143

申请日：2024-01-03

申请人： Siemens Medical Solutions USA, Inc.

发明人： Alexander Hans Vija ,  Miesher Rodrigues

IPC分类号： A61B6/03 ,  A61B6/00 ,  A61B6/58 ,  G01T1/06

CPC分类号： A61B6/037 ,  A61B6/52 ,  A61B6/582 ,  G01T1/06

摘要： For calibration in medical emission tomography, the dosimeter and/or detector is calibrated in the field, such as at the clinic or other patient scanning location. To allow for a fewer number of calibration sources used in calibrating and/or assist in calibration for multispectral emission tomography, a calibration source includes multiple isotopes and/or a proxy source or isotope is used instead of the same isotope used in factory calibration.

公开(公告)号：US20230404511A1

公开(公告)日：2023-12-21

申请号：US18139614

申请日：2023-04-26

申请人： FUJIFILM Healthcare Corporation

发明人： Masatoshi Kudo ,  Yuko Aoki ,  Shigeharu Hirose

IPC分类号： A61B6/00 ,  G06T11/00

CPC分类号： A61B6/52 ,  G06T11/003 ,  A61B6/40 ,  G06T7/0012

摘要： X-ray equipment that can protect an operator moving around in an imaging room from X rays. The X-ray equipment includes: an X-ray source that irradiates a subject with X rays; a detector that acquires projection data of the subject; and an image generator that generates an X-ray image of the subject using the projection data. The equipment further includes: a position calculating section that calculates the position of the operator in the imaging room; and a control section that moves a protective plate for shielding against X rays to between the X-ray source and the operator according to the position of the operator.

公开(公告)号：US20230337997A1

公开(公告)日：2023-10-26

申请号：US17980786

申请日：2022-11-04

申请人： Shenzhen Browiner Tech Co., Ltd

发明人： Anshan WANG ,  Fusheng ZHONG ,  Hailong TAN

IPC分类号： A61B6/00

CPC分类号： A61B6/4405 ,  A61B6/505 ,  A61B6/52 ,  A61B6/461

摘要： Disclosed are a method and a system for visualizing X-ray positioning of a handheld X-ray machine. The method includes: acquiring video acquisition information and distance information from a preset distance acquisition module to an image receiving surface; processing the video acquisition information and the distance information and generating a processing result; and presenting a projection area of the X-ray based on the processing result.

公开(公告)号：US20230233169A1

公开(公告)日：2023-07-27

申请号：US18152381

申请日：2023-01-10

申请人： Siemens Healthcare GmbH

发明人： Ramyar BINIAZAN ,  Steffen KAPPLER ,  Ludwig RITSCHL

IPC分类号： A61B6/00 ,  G06T7/00

CPC分类号： A61B6/52 ,  G06T7/0012 ,  G06T2207/10116 ,  G06T2207/20081 ,  G06T2207/30004 ,  G06T2207/30168 ,  G06T2207/30204

摘要： A method comprises: applying a first trained function to first input data to generate first output data, the first output data including first key elements; receiving second input data, the second input data being an X-ray image of an examination region acquired using a first collimation region; applying a second trained function to the second input data to generate second output data, the second output data including second key elements; receiving third input data in response to an incomplete set of second key elements, the third input data including the second key elements and an X-ray image of the examination region acquired using the first collimation region; applying a third trained function to the third input data to generate third output data, the third output data including an estimated third key element to complete the set of second key elements; and providing a complete set of second key elements.

公开(公告)号：US20230210478A1

公开(公告)日：2023-07-06

申请号：US17927063

申请日：2020-05-29

申请人： Brainlab AG

发明人： Sebastian STOPP ,  Nils FRIELINGHAUS

IPC分类号： A61B6/04 ,  A61B6/00

CPC分类号： A61B6/0492 ,  A61B6/52

摘要： The present invention relates to a computer-implemented method of determining a rotational position of an object in a coordinate system of an x-ray imaging device. An x-ray image is generated of an object to which a Moiré marker for x-ray imaging is attached. Subsequently, the Moiré pattern generated by the Moiré marker is analysed and the rotational position of the marker and hence of the object is determined in a calculative manner. The Moiré marker for x-ray imaging includes a pattern which results in a significantly different appearance when being observed from slightly different perspectives. One embodiment example of the Moiré marker for x-ray imaging consists of two layers with patterns produced by a material that shields x-ray as good as possible like for example lead, surrounded and spaced apart by material that is highly transparent in x-ray like for example air or light plastics. The size of the openings in the pattern shall preferably be small compared to the distance of the two layers such that a small change in orientation of the marker results in a fairly significant change in the structure of the second layer seen through the aperture of the first layer. Multiple structures with different hole sizes and layer distances can be used to have a larger working range while maintaining accuracy.

公开(公告)号：US11644582B2

公开(公告)日：2023-05-09

申请号：US17084199

申请日：2020-10-29

申请人： CANON KABUSHIKI KAISHA

发明人： Takamasa Ishii ,  Kosuke Terui ,  Kota Nishibe ,  Tomohiro Hoshina

IPC分类号： A61B6/00 ,  G01T1/20

CPC分类号： G01T1/20185 ,  A61B6/4208 ,  A61B6/4216 ,  A61B6/4233 ,  A61B6/4266 ,  A61B6/52 ,  A61B6/5205 ,  A61B6/56 ,  A61B6/563 ,  A61B6/566 ,  G01T1/2002 ,  G01T1/2006 ,  G01T1/2008 ,  G01T1/2018 ,  G01T1/20181 ,  G01T1/20182 ,  G01T1/20186 ,  G01T1/20187 ,  G01T1/20188 ,  A61B6/40

摘要： A radiation imaging apparatus including: a first scintillator layer configured to convert a radiation (R) which has entered the first scintillator layer into light; a second scintillator layer configured to convert a radiation transmitted through the first scintillator layer into light; a fiber optic plate (FOP) provided between the first scintillator layer and the second scintillator layer; and an imaging portion configured to convert the light generated in the first scintillator layer and the light generated in the second scintillator layer into an electric signal.