Emission Tomography Patents (Class 250/363.04)
  • Patent number: 10761223
    Abstract: A radiation detector assembly is provided that includes a plurality of multi-detector arms (e.g., between 2 and 5), and plural detector head units disposed in each multi-detector arm. Each of the multi-detector arms defines a cavity therein. At least two detector head units are disposed within the cavity of each multi-detector arm. Each detector head unit includes an absorption member and associated processing circuitry, with the processing circuitry configured to generate electronic signals responsive to radiation received by the absorption member. Each detector head unit is configured to pivot along a sweep direction.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: September 1, 2020
    Assignee: GE PRECISION HEALTHCARE LLC
    Inventor: Nathan Hermony
  • Patent number: 10709507
    Abstract: In some embodiments, data sensed and/or operational parameters used during a catheterization procedure are used in the motion frame-rate updating and visual rendering of a simulated organ geometry. The organ geometry is rendered as a virtual material using a software environment (preferably a graphical game engine) which applies simulated optical laws to material appearance parameters affecting the virtual material's visual appearance, as part of simulating a scene comprising the simulated organ geometry, and optionally also comprising simulated views of a catheter probe used for sensing and/or treatment. Optionally, measurements of and/or effects on tissue by sensing and/or commanded probe-tissue interactions are converted into material appearance changes, allowing dynamic visual simulation of intra-body states and/or events based on optionally non-visual input data.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: July 14, 2020
    Assignee: Navix International Limited
    Inventors: Yizhaq Shmayahu, Yitzhack Schwartz
  • Patent number: 10687776
    Abstract: A method for use in medical imaging of a patient including, with the patient immobilized with respect to an imaging reference frame, acquiring first digital imaging information including a first region of interest using a first imaging modality; processing the first digital imaging information to identify a feature for analysis; and using a second imaging modality to acquire targeted second imaging information for a second region of interest, the second region of interest corresponding to a subset of the first region of interest, wherein the second region of interest includes the feature for analysis.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: June 23, 2020
    Assignee: HOLOGIC, INC.
    Inventors: Jasjit S Suri, Yajie Sun, Roman Janer
  • Patent number: 10690782
    Abstract: The disclosure relates to PET imaging systems and methods. The systems may execute the methods to obtain an anatomical image of a subject acquired when the subject remains in a breath-hold status; obtain PET data of the subject, the PET data corresponding to a respiration signal with a plurality of respiratory phases of the subject, the respiratory phases including a first respiratory phase and a second respiratory phase; gate the PET data; reconstruct a plurality of gated PET images, the plurality of gated PET images including a first gated PET image corresponding to the first respiratory phase and a second gated PET image corresponding to the second respiratory phase; determine a first motion vector field between the first gated PET image and the second gated PET image; determine a second motion vector field between the anatomical image and the second gated PET image; and reconstruct an attenuation corrected PET image.
    Type: Grant
    Filed: September 30, 2017
    Date of Patent: June 23, 2020
    Assignee: UIH AMERICA, INC.
    Inventors: Jizhe Wang, Hongdi Li, Tao Feng
  • Patent number: 10692249
    Abstract: An improved octree traversal implementation improves the color coding gain for point cloud compression. The improved octree traversal order to be used in Anchor PCC or any other octree-based point cloud compression such as Directed Acyclic Graph (DAG). The improved octree traversal makes minimal jumps in 3D space which makes traversed colors more correlated, which improves color coding gain.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: June 23, 2020
    Assignee: Sony Corporation
    Inventors: Arash Vosoughi, Ali Tabatabai
  • Patent number: 10687778
    Abstract: A method is described for positioning of an examination object for an imaging method. The method is used to record an external image of externally visible features of the examination object. The recording of the external image is used as the basis for determining a position and/or orientation of at least one part of the examination object assigned to the imaged features. Subsequently, a check is performed as to whether the determined position and/or orientation of the at least one part of the examination object conforms to a reference position and/or reference orientation. Finally, if the determined position and/or orientation of the at least one part of the examination object does not conform to the reference position and/or reference orientation, the position and/or orientation of the at least one part of the examination object is corrected. Also described is an object-positioning facility. Furthermore, an imaging medical facility is described.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: June 23, 2020
    Assignee: SIEMENS HEALTHCARE GMBH
    Inventor: Daniel Lerch
  • Patent number: 10663413
    Abstract: A method for inspecting a container and an inspection device are disclosed. X-ray scanning is performed on the inspected container to obtain a scanned image. The scanned image is processed to obtain a region of interest. Features of texture units included in the region of interest are calculated. Local descriptions of the texture units are formed based on the features of the texture units. Distinction of each local point is calculated from a local description of each of the texture units so as to obtain a local distinct map of the region of interest. It is determined whether there is an article which is secretly carried in the inspected container using the local distinct map.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: May 26, 2020
    Assignees: Nuctech Company Limited, Tsinghua University
    Inventors: Qiang Li, Jianping Gu, Bin Xu, Yaohong Liu, Ziran Zhao
  • Patent number: 10631819
    Abstract: A system and method for molecular breast imaging (MBI) using pixelated gamma cameras provide easier patient positioning and biopsy access using compression paddles and movable gamma cameras. The paddles and cameras can be curved to better conform to the breast shape. A variable angle slant-hole collimator is provided to assist in stereotactic imaging for biopsy guidance. Methods for performing an MBI screening or diagnostic examination and guiding a biopsy with stereotactic MBI are provided.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: April 28, 2020
    Assignee: KROMEK GROUP, PLC
    Inventor: James William Hugg
  • Patent number: 10624599
    Abstract: The present disclosure describes systems and methods for determining whether a motion signal derived from image data relating to a subject is synchronous with the actual motion state of the subject. The method may include determining one or more values of a symmetry related parameter of a motion signal. The method may further include correcting the motion signal if the motion signal is determined flipped.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: April 21, 2020
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Tao Feng, Wentao Zhu, Jizhe Wang, Youjun Sun, Hongdi Li
  • Patent number: 10630045
    Abstract: The present disclosure discloses a double trigger type single pulse laser apparatus configured to suppress additional pulses to increase single pulse energy and improve stability of output as compared to a conventional single trigger type single pulse laser apparatus. According to the present invention, there is provided a single pulse laser apparatus including a resonator which has a first mirror, a second mirror, a gain medium, an electro-optic modulator and an acousto-optic modulator configured to respectively perform Q-switching and mode-locking, the single pulse laser apparatus including a first photodiode configured to measure a laser beam oscillated by the resonator.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: April 21, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Young Min Jhon, Hui Dong Yang, Byunghyuck Moon, Minah Seo, Chulki Kim, Taikjin Lee, Yongsang Ryu, Hyunseok Song, Jaehun Kim
  • Patent number: 10617382
    Abstract: A system and methods for molecular breast imaging (MBI) using pixelated gamma cameras provide easier patient positioning and biopsy access using compression paddles and movable gamma cameras. The paddles and cameras can be curved to better conform to the breast shape. A variable-angle slant-hole collimator is provided to assist in stereotactic imaging for biopsy guidance. Methods for performing an MBI screening or diagnostic examination and guiding a biopsy with stereotactic MBI are provided.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: April 14, 2020
    Assignee: KROMEK GROUP, PLC
    Inventor: James W. Hugg
  • Patent number: 10588582
    Abstract: Cross-calibration is provided for functional imaging. In PET or SPECT, the inaccuracies from the dose and detector sensitivity may be reduced or removed in both activity concentration and uptake. By using measures from both the radiotracer for the patient and factory calibrated sources, the variability due to dose may be removed. In SPECT, a measurement of system specific sensitivity to a factory calibrated point source is used to improve the accuracy of uptake values, not just activity concentration.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: March 17, 2020
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Manojeet Bhattacharya
  • Patent number: 10568503
    Abstract: An optical coherence tomograph includes a wavelength tunable illuminating device, an illumination and measurement beam path with a dividing element and a scanner and a front optical unit and a reference beam path, a detection beam path and a flat panel detector. A beam splitter conducts the separated measurement radiation to the detection beam path and an optical element acts only on the illumination radiation. The optical element sets the numerical aperture of the illumination of the illumination field in the eye. An optical element acts only on the measurement radiation and sets the numerical aperture with which measurement radiation is collected in the eye. An aperture is arranged in front of the flat panel detector in an intermediate image plane and defines the size of an object field. The flat panel detector has a spatial resolution of 4 to 100 pixels in a direction.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: February 25, 2020
    Assignee: Carl Zeiss Meditec AG
    Inventors: Daniel Bublitz, Christoph Nieten, Lars Omlor, Kai Wicker
  • Patent number: 10564301
    Abstract: Methods and systems are provided for adjusting sensitivity of detectors in a nuclear medicine imaging system based on a sensitivity table. In one embodiment, a method comprises acquiring, with a detector including a collimator, scan data of a subject administered with a radioisotope; calculating a sensitivity of the detector based on the collimator and the radioisotope; and calculating a quantitative parameter from the acquired scan data of the subject based on the calculated sensitivity. In this way, SPECT quantitation may be accurately performed due to the increased accuracy of detector sensitivity for a given collimator and radioisotope without specifically calibrating the detector for the given collimator and radioisotope.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: February 18, 2020
    Assignee: General Electric Company
    Inventor: Asaf Naot
  • Patent number: 10565746
    Abstract: A method may include: obtaining a 3D CT image of a scanning area of a subject; obtaining PET data of the scanning area of the subject; gating the PET data based on a plurality of motion phases; reconstructing a plurality of gated 3D PET images; registering the plurality of gated 3D PET images with a reference 3D PET image; determining a motion vector field corresponding to a gated 3D PET image of the plurality of gated 3D PET images based on the registration; determining a motion phase for each of the plurality of CT image layers; correcting, for each of the plurality of CT image layers, the CT image layer with respect to a reference motion phase; and reconstructing a gated PET image with respect to the reference motion phase based on the corrected CT image layers and the PET data.
    Type: Grant
    Filed: May 5, 2019
    Date of Patent: February 18, 2020
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Jizhe Wang, Tao Feng, Hongdi Li, Wentao Zhu
  • Patent number: 10524740
    Abstract: New and improved CT imaging systems are presented which are low cost, fully self-contained and easily installed/used. Example improvements include implementation of an integrated and self-contained drive system for moving a scanner component relative to a fixed or static platform/base which also acts as an imaging table. The CT imaging system is also greatly simplified to improve ease of use and to reduce cost.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: January 7, 2020
    Assignee: Dedicated2Imaging, LLC.
    Inventors: Eric M. Bailey, Andrew Tybinkowski
  • Patent number: 10517546
    Abstract: A method and apparatus for improvement of spatial resolution in molecular and radiological imaging is presented. System equipment includes bed with either flat or cylindrical detectors large detector arrays with collimator(s), lens(s), mirror(s) and/or shutter(s). This system utilizes magnification principles with large detector arrays. There is error reduction by reduction of non-collinearity error as seen in current PET scans by determination of the trajectory of the photons and accurate localization of the annihilation event of a positron. Additional error reduction of random coincidence and scatter coincidence is seen. Overall, this method and apparatus affords improved spatial resolution and higher efficiencies, which would allow for lower cost and dose reduction to the patient.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: December 31, 2019
    Inventors: David Byron Douglas, Robert E. Douglas
  • Patent number: 10492737
    Abstract: Cross-calibration is provided for functional imaging. In PET or SPECT, the inaccuracies from the dose and detector sensitivity may be reduced or removed in both activity concentration and uptake. By using measures from both the radiotracer for the patient and factory calibrated sources, the variability due to dose may be removed. In SPECT, a measurement of system specific sensitivity to a factory calibrated point source is used to improve the accuracy of uptake values, not just activity concentration.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: December 3, 2019
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Manojeet Bhattacharya
  • Patent number: 10492745
    Abstract: An imaging system is provided including a gantry, a detector unit mounted to the gantry, at least one processing unit, and a controller. The at least one processing unit is configured to obtain object information corresponding to an object, and to automatically determine at least one first portion of the object and at least one second portion of the object. The controller is configured to control a rotational movement of the detector unit. The detector unit is rotatable at a sweep rate over a range of view of the object to be imaged, and the controller is configured to rotate the detector unit at an uneven sweep rate. The uneven sweep rate varies during the rotation from the, wherein a larger amount of scanning information is obtained for the at least one first portion than for the at least one second portion.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: December 3, 2019
    Assignee: GE Medical Systems Israel, Ltd
    Inventors: Jean-Paul Bouhnik, Tzachi Rafaeli, Gil Kovalski, Yariv Grobshtein, Riyad Mahameed, Yaron Hefetz, Einat Binyamin, Yulim Zingerman, Nurit Rivka Wartski
  • Patent number: 10497741
    Abstract: Apparatus and methods for optical emission detection comprising scintillating proximal sensors.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: December 3, 2019
    Assignee: Board of Regents, The University of Texas System
    Inventors: Wai-hoi Wong, Hongdi Li, Rocio Alicia Ramirez-Jaramillo, Yuxuan Zhang, Hossain Baghaei
  • Patent number: 10462321
    Abstract: A scanner having: a first mirror having multiple concavities configured to reflect light from a document; a sensor configured to sense light reflected by a concavity of the first mirror; and a wall disposed to the first mirror and protruding from between the multiple concavities.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: October 29, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Kazutoshi Nishida
  • Patent number: 10430941
    Abstract: An imaging method for identifying abnormal tissue in the lung is provided, comprising the recording of slice images of the lung by means of X-ray radiation, recording of blood vessels, differentiation of blood vessels and abnormal tissue, segmentation of the abnormal tissue and display of the segmented abnormal tissue on an output device. In addition, a computer tomograph for identifying abnormal tissue in the lung is provided, having a radiation source for recording slice images of the lung and blood vessels by means of X-ray radiation, a computer unit for differentiating the blood vessels from the abnormal tissue and for segmenting the abnormal tissue, as well as an output device for displaying the segmented abnormal tissue.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: October 1, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Thomas Buelow, Rafael Wiemker, Cristian Lorenz, Steffen Renisch, Thomas Blaffert
  • Patent number: 10339676
    Abstract: A method for reconstructing multi-tracer metabolic and morphometric images. The method includes the steps of: (a) receiving a plurality of events from positron annihilation centers obtained during measurements conducted by TOF-PET tomography; (b) reconstructing the time coordinates and the three-dimensional spatial coordinates for the plurality of events; (c) determining a common decay plane for gamma quanta originating from the positron-electron annihilation; (d) transforming the three-dimensional spatial coordinates for the gamma quanta to a two-dimensional frame of reference of the common decay plane; (e) determining the time coordinates and the spatial coordinates of a place of the annihilation in the common decay plane; and (f) transforming the time coordinates and the spatial coordinates of the place of the annihilation in the two-dimensional frame of reference of the common decay plane to three-dimensional spatial coordinates in a detector coordinate system.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: July 2, 2019
    Assignee: UNIWERSYTET JAGIELLONSKI
    Inventors: Aleksander Gajos, Daria Kaminska, Pawel Moskal, Eryk Czerwinski
  • Patent number: 10326784
    Abstract: A network activity detection system is trained to detect network activities of interest such as threats by malicious computer data. The training involves distilling the characteristics of known network activities of interest (e.g., intrusion by computer viruses, exploits, worms, or the like) into a minimal set of meta-expressions. At run-time, the network activity detection system combines the minimal set of meta-expressions with efficient computer algorithms for evaluating meta-expressions to detect known network activities of interest, as well as their unknown variants, among an unknown set of network activity. The network activity detection system may produce appropriate responses upon the detection of network activities of interest.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: June 18, 2019
    Assignee: EVENGX, LLC
    Inventor: John S. Flowers
  • Patent number: 10319118
    Abstract: Methods, systems, and machine-readable storage mediums for reconstructing a PET image are provided. In one aspect, a method includes: determining a plurality of LORs associated with multiple-coincidence data in coincidence data detected by a PET device through scanning, obtaining a respective line integral value along each of the LORs according to a time difference between two single events corresponding to the LOR, allocating the multiple-coincidence data to the LORs according to the respective line integral values of the LORs to obtain respective multiple allocation data on the LORs, correcting respective double-coincidence data in the coincidence data corresponding to each of the LORs based on the respective multiple allocation data on the LOR to obtain data of the LOR, and reconstructing an image according to the data of each of the LORs.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: June 11, 2019
    Assignee: Shenyang Neusoft Medical Systems Co., Ltd.
    Inventors: Zhipeng Sun, Jie Chang
  • Patent number: 10282871
    Abstract: A method may include; obtaining a 3D CT image of a scanning area of a subject; obtaining PET data of the scanning area of the subject; gating the PET data based on a plurality of motion phases; reconstructing a plurality of gated 3D PET images; registering the plurality of gated 3D PET images with a reference 3D PET image; determining a motion vector field corresponding to a gated 3D PET image of the plurality of gated 3D PET images based on the registration; determining a motion phase for each of the plurality of CT image layers; correcting, for each of the plurality of CT image layers, the CT image layer with respect to a reference motion phase; and reconstructing a gated PET image with respect to the reference motion phase based on the corrected CT image layers and the PET data.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: May 7, 2019
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Jizhe Wang, Tao Feng, Hongdi Li, Wentao Zhu
  • Patent number: 10251621
    Abstract: A method and system acquiring, processing and displaying breast ultrasound images in a way that makes breast ultrasound screening more practical and thus more widely used, and reduces the occurrence of missing cancers in screening and diagnosis, using automated scanning of chestwardly compressed breasts with ultrasound. Enhanced, whole-breast navigator overview images are produced from scanning breasts with ultrasound that emphasize abnormalities in the breast while excluding obscuring influences of non-breast structures, particularly those external to the breast such as ribs and chest wall, and differentiating between likely malignant and likely benign abnormalities and otherwise enhancing the navigator overview image and other images, thereby reducing the time to read, screen, and/or diagnose to practical time limits and also reduce screening or diagnostic errors.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: April 9, 2019
    Assignee: QVIEW MEDICAL, INC.
    Inventors: Wei Zhang, Shih-Ping Wang, Alexander Schneider, Harlan Romsdahl, Thomas Neff
  • Patent number: 10234570
    Abstract: In a PET device, a first detector includes a plurality of first scintillators and detects gamma rays emitted from positron-emitting radionuclides injected into a subject. A second detector is provided on the outer circumferential side of the first detector, includes a plurality of second scintillators arranged in an arrangement surface density lower than that of the first scintillators, and detects gamma rays that have passed through the first detector. A counted information acquiring unit acquires, as first counted information and second counted information, the detection positions, energy values, and detection time regarding gamma rays detected by the first detector and the second detector. Based on the detection time contained in each of the first counted information and the second counted information, an energy value adder generate corrected counted information by summing the energy values contained in the first counted information and the second counted information.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: March 19, 2019
    Assignees: Toshiba Medical Systems Corporation, National Institutes for Quantum and Radiological Science and Technology
    Inventors: Taiga Yamaya, Takayuki Obata, Iwao Kanno, Takuzo Takayama, Hitoshi Yamagata, Kazuya Okamoto
  • Patent number: 10222607
    Abstract: A three-dimensional (3D) endoscope is provided.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: March 5, 2019
    Assignee: Canon U.S.A., Inc.
    Inventor: Zhuo Wang
  • Patent number: 10209376
    Abstract: A customizable and upgradable imaging system is provided. Imaging detector columns are installed in a gantry to receive imaging information about a subject. Imaging detector columns can extend and retract radially as well as be rotated orbitally around the gantry. The gantry can be partially populated with detector columns and the detector columns can be partially populated with detector elements.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: February 19, 2019
    Assignee: General Electric Company
    Inventors: Gil Kovalski, Jean-Paul Bouhnik, Jonathan Sachs, Yariv Grobshtein, Yulim Zingerman, Arie Eshco, Yaron Hefetz
  • Patent number: 10211594
    Abstract: A detuned resonant mechanism is employed in a laser cavity to modulate in frequency the mode-locking mechanism to achieve high frequency tuning rates, exceeding MHz. The configuration of the laser is compatible with working at sweeping rates close to multiples of the cavity resonance frequency as well as with buffering for increased tuning speeds.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: February 19, 2019
    Assignee: UNIVERSITY OF KENT
    Inventors: Adrian Podoleanu, Radu-Florin Stancu
  • Patent number: 10210635
    Abstract: Reconstruction quality is assessed in medical imaging. An amount of local non-uniformity in a distribution of a statistical measure (e.g., MCDF) is determined. The amount indicates a level of reconstruction quality. A more easily understood amount rather than a rendering of MCDF and/or the amount being a function of local artifacts aids a radiologist in recognizing reconstruction quality and determining whether different reconstruction is warranted.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: February 19, 2019
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Jun Ma, Alexander Hans Vija
  • Patent number: 10181189
    Abstract: A quantitative method for nuclear medicine heart image and an electronic device are provided. The method is adapted for multi-pinhole SPECT images or SPECT/CT images. The method includes a radionuclide physical decay correction, a scatter correction, a geometry distortion correction, a data truncation compensation, a tissue attenuation correction, an image space resolution recovery, a noise removal, a pixel value conversion, a myocardial blood flow quantitative calculation, an intra-scan patient movement correction and a blood flow condition evaluation. Accordingly, a quantitative SPECT reconstructed image of a heart is obtained, and an absolute quantization of the myocardial blood flow is calculated to measure the myocardial blood flow quantitatively according to the quantitative SPECT reconstructed image.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: January 15, 2019
    Assignees: BAILING CLOUD BIOMEDICAL TECHNOLOGIES INNOVATION(BCBTI)
    Inventor: Bailing Hsu
  • Patent number: 10181952
    Abstract: Methods and systems according to the present disclosure improve upon known biometric security systems by not permanently storing (e.g., for later comparison as in known systems) the actual image of the biometric characteristic. Instead, an image of a biometric identifier (e.g., retina, fingerprint, etc.) may be used to form a key which may be used to secure and provide access to data. The key may be formed, in embodiments, using a neural network and/or a random input (e.g., a vector of random characters), for example. The image of the biometric identifier may be discarded, and thus may not be vulnerable to theft. In an embodiment, the key may be used in a key-based encryption system.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: January 15, 2019
    Assignee: RAPIDGPS, LLC
    Inventors: Jory Schwach, Brian Bosak
  • Patent number: 10176604
    Abstract: The disclosure relates to a system and method for image reconstruction. The method may include the steps of: obtaining raw data corresponding to radiation rays within a volume, determining a radiation ray passing a plurality of voxels, grouping the voxels into a plurality of subsets such that at least some subset of voxels are sequentially loaded into a memory, and performing a calculation relating to the sequentially loaded voxels. The radiation ray may be determined based on the raw data. The calculation may be performed by a plurality of processing threads in a parallel hardware architecture. A processing thread may correspond to a subset of voxels.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: January 8, 2019
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Yang Lv, Yu Ding
  • Patent number: 10163233
    Abstract: Methods and apparatus, including computer programs encoded on a computer storage medium, for image reconstruction are provided. According to an example of the methods, an image reconstruction may be performed to generate a first set of reconstructed data with a first set of projection data comprising a plurality of first projection data each corresponding to a respective projection angle of a plurality of projection angles. A second set of projection data comprising second projection data for each projection angle may be generated with the first set of reconstructed data. The first set of projection data may be corrected based on a shifting distance between the first projection data and the second projection data for each projection angle. Then, a second set of reconstructed data may be generated with the corrected first set of projection data, and a reconstructed image may be generated according to the second set of reconstructed data.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: December 25, 2018
    Assignee: Shenyang Neusoft Medical Systems Co., Ltd.
    Inventors: Haoda Ding, Hongyu Guo, Hongbing Hu
  • Patent number: 10149657
    Abstract: An on-line energy coincidence method for an all-digital PET system, comprising: a detection module conducting information collection on a scintillation pulse, forming a single event data frame and sending it to an upper computer; the upper computer conducting two-bit position distribution statistics on an incident gamma photon event and conducting position spectrum partition; performing statistics on an energy distribution spectrum of each crystal bar, so as to acquire an energy correction value; the detection module uploading a crystal bar partition data table and an energy peak correction data table; starting information collection of on-line energy correction; when an event is coming, according to a two-dimensional coordinate thereof, from the crystal partition table, searching for a crystal bar number corresponding thereto, and searching for an energy correction value from the energy correction table; and sending data passing the energy coincidence to the upper computer.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: December 11, 2018
    Assignee: Raycan Technology Co., Ltd. (Suzhou)
    Inventors: Qingguo Xie, Xiaoke Wu, Jun Zhu, Ming Niu, Zhihao Hu, Luyao Wang
  • Patent number: 10143526
    Abstract: Systems and methods for driving a flexible medical instrument to a target in an anatomical space with robotic assistance are described herein. The flexible instrument may have a tracking sensor embedded therein. An associated robotic control system may be provided, which is configured to register the flexible instrument to an anatomical image using data from the tracking sensor and identify one or more movements suitable for navigating the instrument towards an identified target. In some embodiments, the robotic control system drives or assists in driving the flexible instrument to the target.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: December 4, 2018
    Assignee: Auris Health, Inc.
    Inventors: Sean Walker, Curtis Caton, Terence Welsh, Neha Virmani, Yu Chiu, June Park
  • Patent number: 10094950
    Abstract: A controller for detecting objects moving in a first direction in a computed tomography (CT) imaging system is provided. The controller is configured to detect objects by assembling a plurality of segments based on a plurality of CT imaging slices. In response to receiving a stop request, the controller is configured to detect objects by causing the CT imaging system to cease a flow of objects, discarding the one or more of the plurality of CT imaging slices associated with a first segment and a second segment of the plurality of segments, causing the CT imaging system to move the objects in a second direction for an interruption distance in which the second direction is opposite the first direction, causing the CT imaging system to move the objects in the first direction, and reassembling the first segment and the second segment.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: October 9, 2018
    Assignee: MORPHO DETECTION, LLC
    Inventors: Steven Leslie Hills, Samit Kumar Basu
  • Patent number: 10081370
    Abstract: Embodiments are disclosed for systems for a vehicle. An example system for a vehicle includes a head-up display, a central unit having a circuit, connected to the head-up display, and a recording means for recording first image data of surroundings of the vehicle, wherein the circuit is configured to recognize an object in the surroundings based on the recorded first image data, wherein the head-up display is configured to project an image onto a windshield or onto a combiner of the vehicle, and wherein the circuit is configured to generate second image data for outputting the image and to send the image to the head-up display, to generate a virtual barrier in the second image data, and to position the virtual barrier within the image based on a determined position of the recognized object.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: September 25, 2018
    Assignee: Harman Becker Automotive Systems GmbH
    Inventors: Hans Roth, Olaf Preissner, Michael Reuss, Stephan Bergmann
  • Patent number: 10056164
    Abstract: An imaging system (300) includes a radiation source (308) that emits radiation that traverses in a direction of an examination region (306) during a scan and a detector array (316) located opposite the radiation source, across the examination region, which detects radiation traversing the examination region during the scan and produces a signal indicative thereof. A beamshaper (318), located between the radiation source and the examination region, defines a flux intensity profile of the radiation beam traversing the examination region. The beamshaper includes a plurality of x-ray attenuating elements(326), which attenuate x-rays incident thereon, interleaved with a plurality of material free regions, which pass x-ray unattenuated. A transmittance of the x-rays is greater nearer a center region of the beamshaper relative to ends regions of the beamshaper. A beamshaper mover (328) translates the beamshaper during at least one acquisition interval of the scan.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: August 21, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Oren Ofer, Oren Zarchin
  • Patent number: 10048392
    Abstract: Methods, systems, and computer-readable mediums are provided that determine the angular orientation of detectors and detector electronic assemblies (“DEAs”). In various embodiments, the orientation of detectors/DEAs (in the ring) is determined with respect to other detectors/DEAs in the ring, the orientation of the detectors/DEAs with respect to a patient bed, or the orientation of the detectors/DEAs with respect to Earth's gravitational field. In another embodiment, a nuclear medical imaging system has one or more detector units arranged around or that can be swept around a patient bed. Each of the detector units includes an angular orientation-sensing accelerometer. By determining angular orientation of the detector from signals outputted by the accelerometer, the circumferential position of the detector relative to the patient bed can be determined. That information is used in conjunction with information about detected events to construct an image of an organ or tissue mass of interest.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: August 14, 2018
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: James Mark Long
  • Patent number: 9995833
    Abstract: Nuclear medicine (NM) imaging system includes a detector assembly coupled to a gantry. The NM imaging system also includes a positioning sub-system having a motion controller and a detector motor. The positioning sub-system also includes a proximity sensor device (PSD) coupled to a detector head of the detector assembly. The PSD is configured to be activated. In response to being activated, the PSD is configured to transmit an output signal to stop the detector motor from moving the detector head toward the object. The NM imaging system also includes a secondary circuit that, in response to the PSD being activated, is configured to determine whether the detector head has stopped moving toward the object and, if the detector head has not stopped moving toward the object, is configured to disable the detector motor.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: June 12, 2018
    Assignee: General Electric Company
    Inventors: Ilan Levin, Noam Perlis, Refael Dayan, Moty Levy, Roee Khen, Raed Khamaisi
  • Patent number: 9986960
    Abstract: A robotic arm, movable in three rotational degrees of freedom has a base end and a distal end supporting SPECT imaging detectors. A patient support assembly is movable in a linear degree of freedom. A controller causes the robotic arm to move the SPECT imaging detectors, in three dimensions, around the patient's body to obtain SPECT images. The control causes the patient support assembly to move along the linear degree of freedom, maintaining alignment of the patient's body with the SPECT imaging detectors.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: June 5, 2018
    Assignee: PARTO NEGAR PERSIA CO.
    Inventors: Mohammad Reza Ay, Mohammad Hossein Farahani, Saeed Sarkar, Behnoosh Teimourian Fard, Salar Sajedi Toighoun, Sanaz Kaviani
  • Patent number: 9990741
    Abstract: Motion correction is performed in time-of-flight (TOF) positron emission tomography (PET). Rather than applying motion correction to reconstructed images or as part of reconstruction, the motion correction is applied in the projection domain of the PET data. The TOF data from the PET scan is altered to account for the motion. The TOF data is altered prior to starting reconstruction. The motion in the patient or image domain is forward projected to provide motion in the projection domain of the TOF data. The projected motion of different phases is applied to the TOF data from different phases, respectively, to create a combined dataset of motion corrected TOF data representing the patient at a reference phase. The dataset is larger (e.g., similar size from projection data dimension point of view, but contains more counts per projection data unit or is more dense) than available at one phase of the physiological cycle and is then used in reconstruction.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: June 5, 2018
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Vladimir Y. Panin
  • Patent number: 9980684
    Abstract: A collimator for a SPECT system, the collimator being adapted for absorbing and collimating gamma rays emitted by a radiation source within a field of view the collimator, said collimator having an alignment direction for directing along a longitudinal axis of a measuring cavity of the SPECT system and said collimator comprising at least one collimator body of radiation absorbing material, the collimator body comprising a plurality of apertures being formed in the collimator body, the plurality of apertures being arranged in a plurality of groups separated from each other in said alignment direction. The apertures of each group are oriented such as to define at least one projection view along a corresponding at least one projection direction. The plurality of said projection directions corresponding to each and every of said plurality of groups cover an angular range sufficiently large for sufficient image information for artifact-free reconstruction.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: May 29, 2018
    Assignee: MOLECUBES
    Inventors: Lara Da Rocha Vaz Pato, Roel Van Holen, Stefaan Vandenberghe
  • Patent number: 9961339
    Abstract: A calibration rig and calibration method for an imaging system includes a base and a holder extending from the base, the holder including a fixture configured to hold a radioactive source material in a two-dimensional geometric configuration and a radioactive source material disposed in the fixture.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: May 1, 2018
    Assignee: CMR Naviscan Corporation
    Inventors: Haris Kudrolli, Timothy R. Garcia, Aleksandr Kivenson
  • Patent number: 9943274
    Abstract: Radioimaging methods, devices and radiopharmaceuticals therefor.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: April 17, 2018
    Assignee: Spectrum Dynamics Medical Limited
    Inventors: Benny Rousso, Shlomo Ben-Haim, Ran Ravhon, Yoel Zilberstein, Eli Dichterman, Simona Ben-Haim, Nathaniel Roth
  • Patent number: 9947116
    Abstract: Methods and systems are provided for correcting positional errors in an image arising from gaps in a detector assembly. In one embodiment, a method comprises generating a sinogram based on a plurality of photon coincidence events, selectively inserting one or more pseudo-slices into the sinogram, and generating an image based on the sinogram including the one or more pseudo-slices. In this way, positional errors may be reduced without modifying an image reconstruction algorithm to include a full detector geometry or modifying the detector geometry itself.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: April 17, 2018
    Assignee: General Electric Company
    Inventor: Christopher Gerald Matthews
  • Patent number: 9943281
    Abstract: Noise of a CT image is reduced with good accuracy by using noise information obtained from the CT image. An X-ray CT apparatus comprises a successive approximate reconstruction part that reconstructs a CT image for a reconstruction area of an imaging object from measured projection data obtained by an X-ray detection part of the X-ray CT apparatus, and successively corrects the CT image so that calculated projection data obtained by forward projection of the CT image performed by calculation and the measured projection data detected by the X-ray detection part become equal to each other. The successive approximate reconstruction part comprises a noise measurement part that calculates noise intensity in the CT image at least for a predetermined region of interest, and successively corrects the CT image of the region of interest by using the calculated noise intensity.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: April 17, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Keisuke Yamakawa, Shinichi Kojima, Yushi Tsubota