Miscellaneous Patents (Class 378/210)
  • Patent number: 10372802
    Abstract: A system for generating a report based on image data is disclosed. A template selector (1) selecting a template from a plurality of templates, the template defining a structure for the report and data fields to be filled in for the report, wherein the template further defines associations between data fields and view descriptors, wherein a view descriptor defines an image type and a presentation mode of the image type. A data field presenter (2) presenting a representation of the data fields of the template to a user. An image dataset selector (4) automatically selecting at least one image dataset having the image type defined by the view descriptor associated with the selected at least one data field. A view generator (5) automatically generating a view of the at least one selected image dataset based on the presentation mode defined by the view descriptor associated with the selected at least one data field.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: August 6, 2019
    Inventor: Johannes Buurman
  • Patent number: 10373349
    Abstract: The invention relates to an image generation apparatus (1) for generating an image of an object. A reconstruction unit (10) reconstructs the image based on provided measured projection values such that costs defined by a cost function are reduced, wherein the cost function depends on differences between calculated projection values, which have been determined by simulating a forward projection through the image, and the provided measured projection values, and wherein a degree of dependence of the cost function on a respective difference depends on the respective difference. This can allow for a consideration of a degree of disturbance of the measured projection values by motion and/or by an incomplete illumination of the object during the reconstruction process, which can lead to a reconstruction of an image having an improved image quality.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: August 6, 2019
    Inventors: Thomas Koehler, Axel Thran, Frank Bergner, Bernhard Johannes Brendel, Rolf Dieter Bippus
  • Patent number: 10342500
    Abstract: In a case where helical scanning, etc., is performed in an X-ray CT apparatus, upsampled projection data that more approximates to an observed value is obtained. There is provided an X-ray CT apparatus that improves spatial resolution of an overall effective field of view without reducing rotation speed, in an FFS method of acquiring projection data through moving of an X-ray focus position to a plurality of positions. The X-ray CT apparatus: converts projection data acquired through helical scanning into projection data of normal scanning performed by one rotation; generates a virtual-counter-data space in which virtual counter data are acquired on substantially coincident X-ray transmission path in the converted projection data; performs upsampling in a view direction; and similarly upsamples FFS projection data in the view direction for focus-shifted projection data obtained by performing the helical scanning while causing the X-ray focus position to shift (virtual counter data space generation).
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: July 9, 2019
    Assignee: HITACHI, LTD.
    Inventors: Hideaki Fujii, Taiga Goto, Tetsuo Nakazawa
  • Patent number: 10219770
    Abstract: A radiographic image captured by irradiating a subject with radiation is acquired. A scattered radiation removal unit removes a scattered component from the radiographic image using at least imaging conditions. A correction information acquisition unit acquires correction information for correcting the degree of removal of the scattered component and changes the imaging conditions on the basis of the correction information. The scattered radiation removal unit performs a process of removing the scattered component from the radiographic image on the basis of the changed imaging conditions.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: March 5, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Jun Enomoto, Takashi Tajima, Takeshi Koishi, Haruyasu Nakatsugawa, Hirofumi Sawada, Daiki Harada, Takahiro Kawamura, Satoshi Naito, Hideki Yamagishi, Noriaki Ida
  • Patent number: 10166406
    Abstract: Collision free regions are predetermined for one or more class solutions. Each class solution has defined limits for allowed field geometry variations. Collision free regions in planning can be defined as a set of allowed isocenter positions relative to a fixation device. The collision free regions may be visualized by a user to plan for field geometry and isocenter position tradeoffs. Collision free regions in delivery can be defined as a set of allowed couch support coordinates. The treatment fields in a radiation treatment plan can be checked against the collision free regions in delivery to determine whether they will pose any collision risks.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: January 1, 2019
    Assignees: Varian Medical Systems International AG, Varian Medical Systems, Inc.
    Inventors: Janne Nord, Joakim Pyyry, Adam Harrington, Sean Herries, Joseph Schumm, Reto Filiberti, Kari Jyrkkälä, Sylvie Spiessens, Roland Meier, Dominique Gasser
  • Patent number: 10130322
    Abstract: Disclosed herein is a mammography device for X-ray photographing an object to be inspected. The mammography device includes: a device body movable in a vertical axis direction and rotatable around a first horizontal axis; a generator fixed to one end portion of the device body; a support part for the object including a detector; a first moving unit moving the device body in the vertical axis direction; a rotating unit rotating the device body around the first horizontal axis; and a controller controlling the first moving unit and the rotating unit, wherein the controller performs a control so that the rotating unit rotates the device body and the first moving unit moves the device body together with the rotation of the device body in order to position a center of an upper surface of the support part for the object on the same horizontal surface.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: November 20, 2018
    Assignee: General Electric Company
    Inventor: Jin Young Moon
  • Patent number: 10061043
    Abstract: The invention concerns an evaluation apparatus (50) for evaluating gamma radiation events detected by a gamma camera (10) and identifying valid gamma radiation events, said (gamma camera (10) including a scintillator (12) for emitting scintillation photons (42) at photo conversion positions (44) in the scintillator (12) in response to incident gamma rays (22) and resulting gamma radiation events and a position-sensitive photodetector(14) for detecting emitted scintillation photons (42) and obtaining therefrom a spatial signal distribution (24). The invention further concerns a calibration apparatus (56) for in-situ calibrating a position-sensitive photodetector (14) of a gamma camera (10) for the detection of gamma radiation events.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: August 28, 2018
    Inventors: Christoph Werner Lerche, Sarah Lodomez, Volkmar Schulz, Bjoern Weissler
  • Patent number: 10054432
    Abstract: An X-ray inspection apparatus includes a 3D processing unit that performs 3D imaging of a first area in an inspection area, a 2D processing unit that performs 2D imaging of a second area in the inspection area, an extraction unit that extracts 3D information for a first inspection target from a 3D image of the first area, and 2D information for a second inspection target from a 2D image of the second area, a 3D information estimation unit that estimates 3D information for the second inspection target using the extracted 3D information for the first inspection target, and an inspection unit that inspects the second inspection target using the 2D information for the second inspection target and the estimated 3D information for the second inspection target.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: August 21, 2018
    Assignee: OMRON Corporation
    Inventors: Hironori Kasahara, Shinji Sugita, Takako Onishi
  • Patent number: 10006271
    Abstract: A method for predicting hydrocarbon recovery in a subterranean formation may include generating pre-heating data associated with fracturing in a sample from the subterranean formation, determining a first fractal pattern based upon the pre-heating data, and heating the sample with RF power to cause additional fracturing in the sample. The method may include generating post-heating data associated with additional fracturing in the sample after heating with RF power, determining a second fractal pattern based upon the post-heating data, detecting change between the first fractal pattern and the second fractal pattern, and predicting hydrocarbon recovery from the subterranean formation based upon the detected change.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: June 26, 2018
    Inventors: Mark Rahmes, Morteza Akbari, Mike McGonagle, Mark Blue
  • Patent number: 9959638
    Abstract: In one embodiment, an X-ray CT apparatus includes an X-ray tube that radiates, an X-ray, a detector that outputs a plurality of pieces of pre-compression data on a basis of the X-ray first processing circuitry and second processing circuitry. The first processing circuitry groups the plurality of pieces of pre-compression data to generate grouped data corresponding to the pre-compression data in each group, and generates data for restoration for restoring the pre-compression data, wherein the first processing circuitry transmits the grouped data and the data for restoration to the second processing circuitry.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: May 1, 2018
    Assignee: Toshiba Medical Systems Corporation
    Inventor: Tomotaka Sasaya
  • Patent number: 9898840
    Abstract: A method of continuous motion digital tomosynthesis includes exposing an object to a programed intensity x-ray beam as an x-ray source travels a pre-determined path, accumulating a signal charge from the x-ray beam, recording the accumulated signal charge into a digital frame image representing raw baseline data, acquiring information on the source's and the detector's position when the recording occurs, compressing the raw baseline data into compressed views, where each respective compressed view is formed by combining the raw data readouts of the respective compressed view, and reconstructing a volumetric breast image by processing each respective compressed view with a reconstruction process function that incorporates the acquired position information and a spatial sampling corresponding to the compressed views. A system configured to implement the method and a computer-readable medium are also disclosed.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: February 20, 2018
    Assignee: General Electric Company
    Inventors: Remy Andre Klausz, John Eric Tkaczyk, Henri Souchay, Scott Stephen Zelakiewicz
  • Patent number: 9861323
    Abstract: A method for obtaining tomosynthesis images of an object of interest using an imaging system, wherein the imaging system comprises an X-ray source arranged to facing a detector on which the object of interest is positioned. The method comprises acquiring a plurality of projected 2D images of the object of interest in a plurality of orientations identified relative to a perpendicular to the detector, wherein a zero orientation is closest to the perpendicular and applying at least one filter to the acquired projected 2D images to obtain filtered, projection images of the object of interest. The method further comprises determining a reconstruction slice of the object of interest from the backprojection of at least two of the filtered projections, the set of reconstruction slices being the filtered, reconstructed volume of the object of interest, wherein a filter used on the 2D projection images is an adaptive filter.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: January 9, 2018
    Inventors: Sylvain Bernard, Henri Souchay
  • Patent number: 9858688
    Abstract: Methods and systems are provided for motion compensation in computed tomography imaging. In one embodiment, a method comprises reconstructing at least two images from projection data, calculating a motion metric based on the at least two images, selecting a view-weighting function based on the motion metric, and generating a display from the projection data based on the selected view-weighting function. In this way, an image can be reconstructed with the selected view-weighting function which down-weights slices in the image containing motion artifacts. As a result, the image quality of the reconstructed image may be improved with computational efficiency.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: January 2, 2018
    Assignee: General Electric Company
    Inventors: Brian Edward Nett, Caroline Elise Seng
  • Patent number: 9715744
    Abstract: The present invention relates to a method and device of obtaining a beam hardening correction coefficient for carrying out beam hardening correction on computed tomography data. The method includes the steps of: firstly, acquiring an original reconstructed image and an original sinogram of an object of a particular size; secondly, obtaining an error-reduced sinogram after processing the original reconstructed image by error reduction; thirdly, sampling and calculating an average value of the original sinogram and an average value of the error-reduced sinogram; fourthly, optimizing the original sinogram according to the error-reduced sinogram to determine a coefficient vector of optimization function for the object of the particular size; and finally fitting the coefficient vector of the optimization function of the original sinogram to obtain the beam hardening correction coefficient for the object of the particular size.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: July 25, 2017
    Assignee: General Electric Company
    Inventors: Dan Liu, Xueli Wang, Yanling Qu
  • Patent number: 9691167
    Abstract: Systems, apparatus and methods for collecting, storing, processing, reconstructing, and interpreting raw scan data from a medical diagnostic imaging scan. Raw data after a scan such as a Computed Tomography (CT) scan is sent to a raw scan database system and image reconstruction system, where image volumes are reconstructed using software from the software bank and sent to a data management system. Raw scan data generated once by a scanner is continuously used at later times to reconstruct images of the patient without having to perform additional patient scans.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: June 27, 2017
    Assignees: University of Central Florida Research Foundation, Inc., iTomography Corporation
    Inventors: Michael Frenkel, Alexander Katsevich, Igor Frenkel
  • Patent number: 9526467
    Abstract: Irrespective of the layout, moving path, and moving range of the X-ray source and the detector, a highly precise image is acquired, in a similar manner as an X-ray CT scanner that is capable of acquiring a measured image using a rotation angle of 180 degrees or more. A measured image detected by the detector is converted into a rotationally measured image that is acquired by rotationally moving the X-ray source and the detector along concentric circular paths. Then, the rotationally measured image at every measurement angle is provided with a weight that gives intensity variation equivalent to that of the reconstructed image obtained from the rotationally measured images acquired by the measurement using the rotation angle range of 180 degrees, a reconstruction operation is performed, and a reconstructed image is obtained.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: December 27, 2016
    Assignee: HITACHI, LTD.
    Inventor: Rika Baba
  • Patent number: 9418417
    Abstract: An image processing apparatus of the present invention performs reconstruction processing on a projected image of an object obtained by using a radiation source and a detector in order to obtain a tomographic image in which noise has been reduced regardless of the type of reconstruction filter that is used. The image processing apparatus includes a selection unit that selects a reconstruction filter in accordance with an imaging technique; a setting unit that sets an image processing parameter for noise reduction according to the type of the selected reconstruction filter; an image processing unit that performs image processing on the projected image using the image processing parameter; and a reconstruction unit that uses the selected reconstruction filter to perform reconstruction processing on the projected image resulting from the image processing and obtain a tomographic image of the object.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: August 16, 2016
    Inventor: Tsuyoshi Kobayashi
  • Patent number: 9336918
    Abstract: Observation samples in a sample solution are held due to absorption or the like on a rear face of a first X-ray transmission film. In a mirror body, while an X-ray emission film and X-ray transmission films are bent to be convex outward due to a pressure difference, an X-ray transmission film is bent to be convex toward the X-ray transmission film side due to gas expansion in a second cavity part. This bending results in widening of a gap between the first and second X-ray transmission films in their center part more compared with a gap between their end parts. However, there is almost no change between the X-ray transmission films.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: May 10, 2016
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Toshihiko Ogura, Toru Takahashi
  • Patent number: 9058658
    Abstract: The present disclosure provides methods and devices for locating a plurality of interested objects in CT imaging. Location of the interested objects in the three-dimensional space can be determined by using three projection images that are substantially perpendicular to each other. The method can rapidly locate interested objects in a CT image without pre-reconstruction of the CT image even if there are a plurality of interested objects in the field of view. The algorithm does not involve interactive steps. The method is rapid and effective, and thus applicable to industrial applications.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: June 16, 2015
    Assignees: Tsinghua University, Nuctech Company Limited
    Inventors: Liang Li, Li Zhang, Zhiqiang Chen, Ziran Zhao, Yuxiang Xing, Yongshun Xiao, Qingli Wang
  • Patent number: 9020103
    Abstract: A versatile beam scanner for generating a far-field scanned pencil beam, and, alternatively, a far-field pencil beam. An angle selector limits the angular extent of an inner fan beam emitted by a source of penetrating radiation. The source and angle selector may be translated, along a direction parallel to a central axis of a multi-aperture unit, in such a manner as to generate a scanned far-field pencil beam, when rings of apertures are interposed between the source and an inspected target, or, alternatively, a far-field fan beam, when no ring of apertures is interposed.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: April 28, 2015
    Assignee: American Science and Engineering, Inc.
    Inventor: Lee Grodzins
  • Patent number: 9014339
    Abstract: Apparatus for interrupting and/or scanning a beam of penetrating radiation, such as for purposes of inspecting contents of a container. A source, such as an x-ray tube, generates a fan beam of radiation effectively emanating from a source axis, with the width of the fan beam collimated by a width collimator, such as a clamshell collimator. An angular collimator, stationary during the course of scanning, limits the extent of the scan, and a multi-aperture unit, such as a hoop, or a nested pair of hoops, is rotated about a central axis, and structured in such a manner that beam flux incident on a target is conserved for different fields of view of the beam on the target. The central axis of hoop rotation need not coincide with the source axis.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: April 21, 2015
    Assignee: American Science and Engineering, Inc.
    Inventors: Lee Grodzins, Jeffrey R. Schubert, Omar Al-Kofahi, Peter J. Rothschild
  • Patent number: 8989351
    Abstract: The invention relates to an X-ray source (100) with an electron-beam-generator (120) for generating electron beams (B, B?) that converge towards a target (110). Thus the spatial distribution of X-ray focal spots (T, T?) on the target (110) can be made denser than the distribution of electron sources (121), wherein the latter is usually dictated by hardware limitations. The electron-beam-generator (120) may particularly comprise a curved emitter device (140) with a matrix of CNT based electron emitters (141) and an associated electrode device (130).
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: March 24, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: Gereon Vogtmeier, Wolfgang Chrost
  • Patent number: 8971496
    Abstract: An X-ray waveguide showing a small propagation loss and having a waveguide mode with its phase controlled is provided. The X-ray waveguide including: a core for guiding an X-ray in a wavelength band that a real part of the refractive index of a material is 1 or less; and a cladding for confining the X-ray in the core, in which: the X-ray is confined in the core by total reflection at a interface between the core and the cladding; in the core multiple materials having different real parts of the refractive index are periodically arranged; and a waveguide mode of the X-ray waveguide is such that the number of antinodes or nodes of an electric field intensity distribution or a magnetic field intensity distribution of the X-ray coincides with the number of periods of the periodic structure in a direction perpendicular to a waveguiding direction of the X-ray in the core.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kohei Okamoto, Atsushi Komoto, Wataru Kubo, Hirokatsu Miyata, Takashi Noma
  • Patent number: 8964937
    Abstract: A method of operating a radiotherapy system, comprising: receiving a treatment plan to be carried out using the radiotherapy system; detecting if there is a fault in a component of the radiotherapy system; determining whether the component is needed for delivery of the treatment plan; and if the component is not needed for delivery of the treatment plan, allowing the radiotherapy system to execute the treatment plan.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: February 24, 2015
    Assignee: Elekta AB (publ)
    Inventors: Paul Berwick, Christopher Knox
  • Patent number: 8923483
    Abstract: A method for controlling the angular orientation of an x-ray image on a display for a viewer displays at least one rotation mode selector on the display. A viewer instruction selects the rotation mode. An overlay displays with the x-ray image, wherein the overlay provides a center of rotation. A viewer instruction identifies a point lying outside the center of rotation. The image is rotated on the display about the center of rotation according to the identified point.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: December 30, 2014
    Assignee: Carestream Health, Inc.
    Inventor: Charles Schneider
  • Patent number: 8903038
    Abstract: According to one embodiment of the present invention, an X-ray CT device includes: a front dome cover and rear dome cover that include a fixed cover and a plurality of segmented movable covers; a slide mechanism that enables the movable covers to slide relative to the fixed cover; and a dome-diameter driving unit that controls the slide mechanism to change a dome diameter of a gantry dome.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: December 2, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Yohei Matsuzawa, Tomiya Sasaki, Hiroshi Hori
  • Patent number: 8899831
    Abstract: A radiographic apparatus includes an image acquisition controller for controlling operation of more than one electronic cassette. For signal communication between the image acquisition controller and the electronic cassettes, each electronic cassette may be connected to a communication cable. These communication cables are connected to a switching hub that intermediates communication between the electronic cassettes and the image acquisition controller. The radiographic apparatus includes multiple power supplies corresponding in number to the electronic cassettes. Each electronic cassette may be connected to one power supply through a power cable separately from the communication cable.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: December 2, 2014
    Assignee: Fujifilm Corporation
    Inventors: Yutaka Yoshida, Yusuke Kitagawa, Katsumi Shimada, Noriaki Ida
  • Patent number: 8837672
    Abstract: The concealing of one or more identification symbols into a target object and the subsequent determination or reading of such symbols through non-destructive testing is described. The symbols can be concealed in a manner so that they are not visible to the human eye and/or cannot be readily revealed to the human eye without damage or destruction of the target object. The identification symbols can be determined after concealment by e.g., the compilation of multiple X-ray images. As such, the present invention can also provide e.g., a deterrent to theft and the recovery of lost or stolen objects.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: September 16, 2014
    Assignee: Savannah River Nuclear Solutions, LLC
    Inventors: Thomas A. Nance, Kenneth M. Gibbs
  • Patent number: 8792610
    Abstract: An apparatus for X-ray CT imaging including an X-ray irradiation unit configured to irradiate an X-ray toward a subject, an X-ray detector having a plurality of X-ray detection elements along a channel direction and a row direction, a couch on which the subject can be arranged, a rotation unit on which the X-ray irradiation unit and the X-ray detector are oppositely disposed and rotate around the couch, a controller configured to execute a helical scan while fluctuating an X-ray focal spot along a body axis direction of the subject by controlling the X-ray irradiation unit, and an image processing unit configured to generate a reconstructed image based on data acquired by the helical scan, wherein the controller is further configured to set a magnitude of fluctuation of the X-ray focal spot so that data acquisition loci of the helical scan do not overlap each other.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: July 29, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventor: Hiroaki Miyazaki
  • Patent number: 8737701
    Abstract: A method is disclosed for reconstructing image data of a moving examination object from measured data, the measured data having been acquired during a rotating movement of a radiation source of a computed tomography system around the examination object. In at least one embodiment, first image data are determined from the measured data. Movement information is determined from the first image data by forming the difference between images. Time instants of little movement of the examination object are determined from the movement information, the determined time instants being dependent on the location or site within the examination object. Finally, second image data are reconstructed taking the determined time instants into account. These data can be output as result images.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: May 27, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventor: Thomas Allmendinger
  • Patent number: 8731133
    Abstract: A pressurized water nuclear reactor (PWNR) includes a core having a containment shield surrounding a reactor vessel having fuel assemblies that contain fuel rods filled with fuel pellets, and control rods, and a steam generator thermally coupled to the reactor vessel. A flow loop includes the steam generator, a turbine, and a condenser, and a pump for circulating a water-based heat transfer fluid in the loop. The heat transfer fluid includes a plurality of nanoparticles having at least one carbon allotrope or related carbon material dispersed therein, such as diamond nanoparticles.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: May 20, 2014
    Assignee: University of Florida Research Institute Foundation, Inc.
    Inventors: Ronald H. Baney, James S. Tulenko, Kevin W. Powers
  • Patent number: 8723131
    Abstract: A radiation imaging system includes a portable electronic cassette having a first cable that includes at least one of a signal line and a power line and is provided with a first connector for connecting to another connector, the electronic cassette being configured to acquire an image based on radiation transmitted through an object; a controller having a second cable that includes at least one of a signal line and a power line and is provided with a second connector for connecting to the first connector, the controller being configured to control an imaging operation of the electronic cassette via these cables; and a patient platform having an electronic cassette-housing unit in which the electronic cassette can be installed and a connector holding unit in which the second connector can be fixedly fitted. Here, the first connector has a lock/unlock operation unit configured to detachably connect to the second connector.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: May 13, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kensuke Kobayashi
  • Patent number: 8699667
    Abstract: A system for applying a target track material to an x-ray tube target includes a controller configured to direct a beam of energy toward an x-ray tube target, and direct a solid stock material toward the beam of energy to cause the solid stock material to melt and deposit as a melted material on the x-ray tube target.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: April 15, 2014
    Assignee: General Electric Company
    Inventors: Gregory Alan Steinlage, Marshall Gordon Jones, Donald Robert Allen
  • Patent number: 8693619
    Abstract: The invention relates to a medical computed tomography imaging apparatus which includes a support construction (1) which is arranged to support a substantially ring-shaped structure (2) supporting x-ray imaging means (21, 22), which x-ray imaging means (21, 22) are arranged within said substantially ring-shaped structure supporting the imaging means (2) and movable within said substantially ring-shaped structure supporting the imaging means (2), which ring-shaped structure (2) supporting the imaging means (21, 22) includes an examination opening (4), whereto the object to be imaged can be positioned for imaging. According to the invention, at least one display (11) is arranged to the apparatus. The display is arranged in functional connection with at least one video camera (12), which at least one video camera (12) is arranged in connection with said ring-shaped structure (2) and as aimed, or so that it can be aimed inside said examination opening (4).
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: April 8, 2014
    Assignee: Planmed Oy
    Inventors: Tapio Laukkanen, Sami Tohka
  • Patent number: 8625744
    Abstract: The present disclosure relates, according to some embodiments, to apparatus, devices, systems, and/or methods for real-time detection of a concealed or camouflaged explosive device (e.g., EFPs and IEDs) from a safe stand-off distance. Apparatus, system and/or methods of the disclosure may also be operable to identify and/or spatially locate and/or detect an explosive device. An apparatus or system may comprise an x-ray generator that generates high-energy x-rays and/or electrons operable to contact and activate a metal comprised in an explosive device from a stand-off distance; and a detector operable to detect activation of the metal. Identifying an explosive device may comprise detecting characteristic radiation signatures emitted by metals specific to an EFP, an IED or a landmine. Apparatus and systems of the disclosure may be mounted on vehicles and methods of the disclosure may be performed while moving in the vehicle and from a safe stand-off distance.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: January 7, 2014
    Assignees: U.S. Department of Energy, Raytheon Company
    Inventors: Brandon W. Blackburn, Alan W. Hunt, David L. Chichester
  • Patent number: 8622614
    Abstract: A mobile radiography apparatus has a moveable (e.g., wheeled) transport frame and an adjustable column mounted at the frame. A boom apparatus supported by the adjustable column can support an x-ray source and can be coupled to a optional second display (also adjustably mounted). Embodiments of methods and/or apparatus by which mobile radiography carts can provide a securable storage for at least one radiographic detector by blocking at least a portion of a path traveled by the at least one radiographic detector when removed from storage at the mobile radiography apparatus.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: January 7, 2014
    Assignee: Carestream Health, Inc.
    Inventors: Evan P. Carmichael, Michael P. Urbon
  • Patent number: 8613546
    Abstract: One or more techniques and/or systems are described herein for cleaning a portion of a radiographic examination apparatus whereon debris may accumulate. Typically, the portion being cleaned is within a scanning field of the radiographic examination device (e.g., within a portion of the radiographic examination device through which radiation traverses). Activation of a cleaning mechanism, or a portion thereof, may be timed to miss radiation emitted during a scan, and thus not interfere with a scan. Also, the cleaning mechanism, or a portion thereof, may be located so as to not attenuate radiation. If radiation is attenuated by the cleaning mechanism corrective techniques can be implemented to account for such attenuation.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: December 24, 2013
    Assignee: Analogic Corporation
    Inventors: John P. O'Connor, Charles Shaughnessy, Sorin Marcovici
  • Patent number: 8615069
    Abstract: A portable radiographic imaging device and a portable X-ray source, that operate due to a first and second rechargeable battery respectively, can be accommodated in an accommodating case that is portable. While the accommodating case is being transported, a charging circuit provided in the accommodating case acquires electric power from a third rechargeable battery accommodated in the accommodating case, and charges the first and second rechargeable batteries. In this way, by accommodating the portable radiographic imaging device and the portable X-ray source in the accommodating case, the rechargeable batteries for the portable radiographic imaging device and the portable X-ray source are charged during transport.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: December 24, 2013
    Assignee: Fujifilm Corporation
    Inventors: Takeshi Kamiya, Yasunori Ohta, Yusuke Kitagawa, Haruyasu Nakatsugawa
  • Patent number: 8576986
    Abstract: An X-ray imaging method includes in a digital X-ray detector including an array of discrete picture elements each including a photodiode and a transistor, applying a first voltage to the transistors of the discrete picture elements. The method also includes preparing for acquisition of X-ray image data by sampling data from the discrete picture elements while applying a second voltage to the transistors of the discrete picture elements not then being sampled, the second voltage being more negative than the first voltage. The method further includes receiving X-ray radiation on the detector from a source. The method yet further includes sampling X-ray image data from the discrete picture elements while applying the second voltage to the transistors of the discrete picture elements not then being sampled.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: November 5, 2013
    Assignee: General Electric Company
    Inventors: James Zhengshe Liu, Paul Richard Granfors, Kenneth Scott Kump, Ping Xue, Donald Fayette Langler, Brian John Kost
  • Patent number: 8462911
    Abstract: When performing nuclear (e.g., SPECT or PET) and CT scans on a patient, a volume cone-beam CT scan is performed using a cone-beam CT X-ray source (20) and an offset flat panel X-ray detector (22). A field of view of the X-ray source overlaps a field of view of two nuclear detector heads (18), and the offset of the X-ray detector (22) minimizes interference with nuclear detector head movement about a rotatable gantry (16). Additionally, a locking mechanism (80) provides automatically locking of the X-ray detector (22) in each of a stowed and operation position, improving safety and CT image quality.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: June 11, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: John F. Vesel, Michael J. Petrillo, Ian Farmer, Mahmoud Janbakhsh, Rizwan Hassan, Paul Hug, Joseph J. Stefan, Marc A. Huber
  • Patent number: 8422629
    Abstract: A method and apparatus for counting seedlings. A seedling moves through a seedling counter, which comprises a spectral energy emitter and a spectral energy detector. When the spectral energy detector detects a sufficient attenuation of the spectral energy for a sufficient amount of time, the spectral energy detector indicates the presence of a seedling. The spectral energy detector detects irregularities in the received spectral energy to indicate faults in the apparatus. In one embodiment, the seedling counter is adapted to use X-ray energy.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: April 16, 2013
    Assignee: Weyerhaeuser NR Company
    Inventors: Jimmy Lee Stokes, Edward Joseph Kelleher, Jr.
  • Patent number: 8385620
    Abstract: A computed tomography apparatus and method where data is upsampled with shifting to produce upsampled data. The data is shifted up and down in the same amount in the z-direction, and then upsampled through interpolation. An image is reconstructed using the upsampled data. The process is preferably performed column-by-column. An upsampling shift and interpolation kernel size can be adaptive to the data z-gradient.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: February 26, 2013
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Aleksandr Zamyatin, Michael D. Silver, Satoru Nakanishi
  • Patent number: 8345824
    Abstract: An X-ray waveform is generated by validating detection data corresponding to when an X-ray (4) is generated at a collision point (9) among X-ray detection data and invalidating other data. For example, when laser light (3) is pulse laser light and an electron beam (1) is a continuous electron beam or a pulse-like electron beam having a pulse width equal to or greater than that of the pulse laser light, the X-ray waveform is generated by detecting the laser light (3) and multiplying the X-ray detection data by laser light detection data after making time axes coincident with respect to the collision point (9).
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: January 1, 2013
    Assignees: IHI Corporation, The University of Tokyo
    Inventors: Hiroyuki Nose, Daisuke Ishida, Namio Kaneko, Yasuo Sakai, Mitsuru Uesaka, Fumito Sakamoto, Katsuhiro Dobashi
  • Patent number: 8308360
    Abstract: A dental x-ray film preferably includes a dental x-ray casing adapted to be removably positioned within the patient mouth, an x-ray film contained within the dental x-ray casing, a protective cover removably positioned over the dental x-ray casing such that the dental x-ray casing and the x-ray film are completely contained within the protective cover. Such a protective cover is preferably formed from flexible fluid-impermeable material. A dry powder is preferably coated on a major surface area of an outer surface of at least one of the protective cover and the dental x-ray casing. Notably, the dry powder is fluid-soluble and includes an anesthetic agent and/or a flavoring agent capable of providing a numbing effect and a desirable taste when exposed to fluid, respectively, during the dental x-ray procedure.
    Type: Grant
    Filed: July 31, 2010
    Date of Patent: November 13, 2012
    Inventor: Irina Goral
  • Patent number: 8284892
    Abstract: A method of performing a computed tomographic image reconstruction is provided. The method provides for performing a short scan of an imaging object to acquire a short scan data, performing a plurality of image reconstructions based on the short scan data wherein the plurality of image reconstructions result in a corresponding plurality of image volumes wherein the image reconstructions use different view weighting functions, filtering the plurality of image volumes such that when the volumes are added together, the frequency domain data is substantially uniformly weighted. Further, the method provides for combining the plurality of image volumes together to produce a final image volume.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: October 9, 2012
    Assignee: General Electric Company
    Inventors: Jed Douglas Pack, Kai Zeng, Zhye Yin
  • Patent number: 8218843
    Abstract: The present application relates to a method for registering two-dimensional image data, comprising the steps of: providing a registered three-dimensional image data set of an object under examination; providing a two-dimensional image data set of the object under examination which is to be registered; generating synthetic two-dimensional image data sets of the object under examination from the three-dimensional image data set, wherein the synthetic two-dimensional image data sets to be generated are parameterized with regard to parameters which describe the two-dimensional image data set to be registered; comparing the parameterized synthetic two-dimensional image data sets with the two-dimensional image data set to be registered, and finding the parameterized synthetic two-dimensional image data set having the greatest similarity to the two-dimensional image data set to be registered; on the basis of this, ascertaining the spatial relationship between the two-dimensional image data set to be registered an
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: July 10, 2012
    Assignee: BrainLAB AG
    Inventors: Martin Edlauer, Uli Mezger, Robert Essenreiter, Manfred Weiser
  • Patent number: 8218719
    Abstract: In a method to assist in the selection of an acquisition configuration from a set of adjustable acquisition configurations for the acquisition of x-ray projections of the heart of a patient with a computed tomography apparatus to examine the heart of the patient, the which method is based on an examination type to be specified. At least two acquisition configurations for the specified examination type (which acquisition configurations can be adjusted at the computed tomography apparatus) are considered for which at least one probability density function is respectively kept ready that was determined for the respective acquisition configuration for a specific variable pertaining to a person and/or for the x-ray dose to be applied to the person.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: July 10, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Thomas Allmendinger, Stefan Reichelt, Carsten Thierfelder
  • Patent number: 8160199
    Abstract: A method and system provides medical image processing and 3-dimensional image construction of an examination subject. A user is enabled to selectively orient an x-ray imaging system having a variable 3-dimensional acquisition axis relative to an examination subject support for holding an examination subject. A non-planar image data acquisition path is set for the x-ray imaging system oriented around the variable 3-dimensional acquisition axis in response to user instruction. Acquisition of image data of the examination subject is initiated by the x-ray imaging system at a plurality of points along the non-planar image data acquisition path. A 3-dimensional image is constructed from the acquired image data such that any metal artifacts introduced by radio-opaque objects within the examination subject are minimized. The 3-dimensional image is displayed.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: April 17, 2012
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: John Christopher Rauch
  • Patent number: 8107592
    Abstract: The invention provides in one aspect methods and apparatus for use with C-arm and other CT systems, e.g., with non-rigid geometries. In such systems, by way of example, calibration can be performed to determine the exact position of the x-ray source and the exact orientation of the detector where each projection measurement is made. Next, a weighting coefficient can be determined for the voxels in each plane of a reconstruction volume at every possible projection. Finally, the order in which to process the voxels during image reconstruction can be determined. Following an actual CT scan procedure in which scans are obtained of a volume to be constructed, a system according to these and related aspects of the invention can use an optimal, pre-calculated processing method, while utilizing offsets and weighting coefficients determined during calibration, for performing backprojection image reconstruction.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: January 31, 2012
    Assignee: PME IP Australia Pty Ltd.
    Inventors: Ari P. Berman, Scott A. Thieret, Joseph Goddard
  • Patent number: 8095201
    Abstract: The possibility for receiving and processing data from an analytical chip (“lab-on-a-chip”) is integrated into a medical device, such as for example an X-ray imaging system. This means quite simply that it is possible at the medical device to make a diagnosis which could otherwise only be made by a laboratory. There is a separate processor unit, a separate memory a separate input/output unit, adapted to the analytical chip, and a display unit displays both image data from the X-ray imaging system and also analytical data.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: January 10, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventor: Michael Maschke