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1. 发明授权

US11612373B2 Image processing apparatus for C-arm 有权
公开(公告)号：US11612373B2
公开(公告)日：2023-03-28
申请号：US17320857
申请日：2021-05-14
申请人： Sang Ho Park
发明人： Sang Ho Park
IPC分类号： A61B6/00 , A61B6/04 , A61B6/08
摘要： Provided is an image processing apparatus for a C-arm, including: a movement control unit which moves a C-arm which irradiates a radiation onto a bone of a subject located on a table and detects the radiation which penetrates the bone to generate a projection image for the bone, along a predetermined route; an image acquiring unit which acquires a plurality of projection images generated by the moving C-arm at every predetermined interval; and an image processing unit which generates a combined projection image in which the plurality of acquired projection images is combined, and the predetermined interval may be an interval at which a continuous panoramic image may be generated by connecting the plurality of acquired projection images.

2. 发明授权

US11610753B2 Systems and methods for correction of position of focal point 有权
公开(公告)号：US11610753B2
公开(公告)日：2023-03-21
申请号：US16870904
申请日：2020-05-09
申请人： SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
发明人： Xin Xiao , Tao He , Xi Zhang
IPC分类号： A61B6/00 , A61B6/03 , A61B6/08 , H01J35/02 , H01J35/06 , H01J35/08 , H01J35/10 , H01J35/14 , H01J35/24 , H01J35/26 , H01J35/30 , G06T11/00 , G21K1/087 , G21K1/093
摘要： Systems and methods for determining an offset of a position of a focal point of an X-ray tube is provided. The methods may include obtaining at least one parameter associated with an X-ray tube during a scan of a subject. The methods may further include determining a target offset of a position of a focal point based on the at least one parameter and a target relationship between a plurality of reference parameters associated with the X-ray tube and a plurality of reference offsets of reference positions of the focal point. The methods may further include causing, based on the target offset, a correction on the position of the focal point of the X-ray tube.

3. 发明申请

US20230040643A1 IMAGING SYSTEMS AND METHODS 有权
公开(公告)号：US20230040643A1
公开(公告)日：2023-02-09
申请号：US17658897
申请日：2022-04-12
申请人： OXOS Medical, Inc.
发明人： Evan RUFF , Gregory KOLOVICH , Dev MANDAVIA , Dhruv VISHWAKARMA , Igor ZAMLINSKY , Sean DOLAN
IPC分类号： A61B6/00 , A61B6/08
摘要： Methods and systems for X-ray and fluoroscopic image capture and, in particular, to a versatile, multimode imaging system incorporating a handheld X-ray emitter operative to capture non-invasive images of a target; a stage operative to capture static X-ray and dynamic fluoroscopic images of the target; a system for the tracking and positioning of the X-ray emission to improve safety of obtaining X-ray images as well as improve the quality of X-ray images. Where the devices can automatically limit the field of the X-ray emission.

4. 发明申请

US20220338832A1 AUTOMATIC REGULATION OF A POSITION OF AN X-RAY FOCUS OF AN X-RAY IMAGING SYSTEM 有权
公开(公告)号：US20220338832A1
公开(公告)日：2022-10-27
申请号：US17726803
申请日：2022-04-22
申请人： Siemens Healthcare GmbH
发明人： Thomas WEIDINGER , Ulf LANZ , Johannes GAREUS
IPC分类号： A61B6/00 , A61B6/08
摘要： In a method for regulating a position of an X-ray focus on the anode of an X-ray source of a scan unit of an X-ray imaging system, a combined actual position of the X-ray focus is determined by a combination of a measured position of the X-ray focus and a model-based position of the X-ray focus, which is determined based on a measured value of a deflection current. On the basis of the combined actual position and a target position, a manipulated variable is determined. On the basis of the determined manipulated variable, a regulation is performed to correct a deviation of the position of the X-ray focus from the target position.

5. 发明申请

US20220313183A1 Fast 3D Radiography with Multiple Pulsed X-ray Sources by Deflecting Tube Electron Beam using Electro-Magnetic Field 有权
公开(公告)号：US20220313183A1
公开(公告)日：2022-10-06
申请号：US17412632
申请日：2021-08-26
申请人： Jianqiang Liu , Manat Maolinbay , Chwen-yuan Ku , Linbo Yang
发明人： Jianqiang Liu , Manat Maolinbay , Chwen-yuan Ku , Linbo Yang
IPC分类号： A61B6/00 , A61B6/02 , A61B6/08
摘要： An X-ray imaging system using multiple pulsed X-ray sources to perform highly efficient and ultrafast 3D radiography is presented. There are multiple pulsed X-ray sources mounted on a structure in motion to form an array of sources. The multiple X-ray sources move simultaneously relative to an object on a pre-defined arc track at a constant speed as a group. Electron beam inside each individual X-ray tube is deflected by magnetic or electrical field to move focal spot a small distance. When focal spot of an X-ray tube beam has a speed that is equal to group speed but with opposite moving direction, the X-ray source and X-ray flat panel detector are activated through an external exposure control unit so that source tube stay momentarily standstill equivalently. 3D scan can cover much wider sweep angle in much shorter time and image analysis can also be done in real-time.

6. 发明申请

US20220249035A1 CT IMAGING APPARATUS 有权
公开(公告)号：US20220249035A1
公开(公告)日：2022-08-11
申请号：US17616010
申请日：2020-06-02
申请人： PLANMECA OY
发明人： Kari MALMÉN
IPC分类号： A61B6/03 , A61B6/04 , A61B6/08 , A61B6/14 , A61B6/00 , A61G15/02 , A61B5/00
摘要： The invention relates, in particular, to features of an apparatus applicable for use in the context of dental or medical CT imaging. The apparatus comprises a two longitudinally extending frame parts 11, 21, a support construction 12 for an X-ray source 14 and an image detector 15 and a first driving mechanism 16 arranged to move them about a rotation axis 13. A patient support 18 comprising a patient support surface 184 is mechanically connected to the first of the substantially longitudinally extending frame parts 11, which extends substantially in parallel with the first longitudinally extending frame part 11 and having at, or at the proximity of its two edges 181 which extend in the same direction as the first longitudinally extending frame part 11 i) at least one support element 183 or ii) at least one connecting construction 182 for at least one support element 83, the support element 183 being an accessory designed for a patient to hold on or help the patient to be still during an imaging exposure, or to help keeping a patient be still.

7. 发明申请

US20220240874A1 RADIOGRAPHIC SYSTEM, RADIOGRAPHIC APPARATUS, INFORMATION PROCESSING APPARATUS, AND INFORMATION PROCESSING METHOD 有权
公开(公告)号：US20220240874A1
公开(公告)日：2022-08-04
申请号：US17645748
申请日：2021-12-23
申请人： FUJIFILM CORPORATION
发明人： Junya MORITA
IPC分类号： A61B6/04 , A61B6/08 , A61B6/00
摘要： The radiographic system includes an exposure table on which a breast of a subject is placed, a compression plate that compresses the breast placed on the exposure table, a marker having a two-dimensional pattern provided on the compression plate, a radiation source that irradiates the compressed breast with radiation, a camera that captures a visible light image including the marker, and a processor that derives height information of the compression plate with respect to the exposure table based on a marker image showing the marker reflected in the visible light image.

8. 发明授权

US11357467B2 Multi-pass computed tomography scans for improved workflow and performance 有权
公开(公告)号：US11357467B2
公开(公告)日：2022-06-14
申请号：US16694192
申请日：2019-11-25
申请人： Accuray, Inc.
发明人： Daniel Gagnon , Chuanyong Bai , Zhicong Yu
IPC分类号： A61B6/00 , G06T11/00 , A61B6/03 , A61B6/06 , A61B6/02 , A61N5/10 , A61B6/08 , G06T7/30 , A61B5/055 , A61B6/04
摘要： An x-ray imaging apparatus and associated methods are provided to execute multi-pass imaging scans for improved quality and workflow. An imaging scan can be segmented into multiple passes that are faster than the full imaging scan. Data received by an initial scan pass can be utilized early in the workflow and of sufficient quality for treatment setup, including while the another scan pass is executed to generate data needed for higher quality images, which may be needed for treatment planning. In one embodiment, a data acquisition and reconstruction technique is used when the detector is offset in the channel and/or axial direction for a large FOV during multiple passes.

9. 发明授权

US11337669B2 Automatic positioning of an X-ray source by way of segmentation 有权
公开(公告)号：US11337669B2
公开(公告)日：2022-05-24
申请号：US17036746
申请日：2020-09-29
申请人： Siemens Healthcare GmbH
发明人： Sven-Martin Sutter , Daniel Lerch
IPC分类号： A61B6/00 , G01N23/046 , A61B6/06 , A61B6/08
摘要： At least one example embodiment provides a method for automatic positioning of an X-ray source of a medical X-ray system with a mobile X-ray detector. The method includes determining an examination region of the examination object, acquiring a position and a location of the examination object and the examination region by way of an optical position determining system, localizing the examination region, ascertaining a field point of the central ray of the X-ray source and a collimator size of the X-ray source based on the localized examination region, and automatic positioning of the X-ray source based on the field point and the collimator size.

10. 发明授权

US11337668B2 Computed tomography system and method for image improvement using prior image 有权
公开(公告)号：US11337668B2
公开(公告)日：2022-05-24
申请号：US16694166
申请日：2019-11-25
申请人： Accuray, Inc.
发明人： Zhicong Yu , Daniel Gagnon
IPC分类号： A61B6/00 , G06T11/00 , A61B6/03 , A61B6/06 , A61B6/02 , A61N5/10 , A61B6/08 , G06T7/30 , A61B5/055 , A61B6/04
摘要： A computed tomography (CT) system and method is provided. The CT system is used to carry out an image improvement method in which a prior or previously-acquired patient image can be used to supplement or otherwise improve an acquired CT image, wherein the acquired projection data representative of the acquired CT image might be truncated or otherwise incomplete/insufficient to accurately and stably recover the scanned object/patient.

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