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| Number | Title | Issue Date |
| 8180017 | Stereo tube attenuation filter A computed tomography apparatus (10) includes spaced radiation sources (82, 84), such as anodes, which each propagate a cone-beam of radiation (40, 50) into an examination region (14). A detector (22) detects radiation which has pa... | 05/15/2012 |
| 8139709 | Staggered circular scans for CT imaging Certain embodiments provide staggered circular scans for CT imaging. In certain embodiments, a CT imaging system comprises a plurality of source-detector assemblies that are axially offset from one another and rotate about a rotation axis to provide staggered circul... | 03/20/2012 |
| 8094773 | Method and device for generating a three-dimensional X-ray imaging A method is provided for quickly and simply generating a three-dimensional tomographic x-ray imaging. Tomosynthetic projection images are recorded from different recording angles along a tomosynthetic scanning path and three-dimensional image data is reconstructed f... | 01/10/2012 |
| 8064568 | Method and device to generate projections of the inside of an examination subject In a radioscopic method and device to generate projections of the inside of an examination subject that is located in an examination space of a data acquisition unit, a number of ray beams are generated that are directed toward the examination space and that each ex... | 11/22/2011 |
| 8031829 | Method for analytic reconstruction of cone-beam projection data for multi-source inverse geometry CT systems A method for analytically reconstructing a multi-axial computed tomography (CT) dataset, acquired using one or more longitudinally-offset x-ray beams emitted from multiple x-ray sources is provided. The method comprises acquiring one or more CT axial projection data... | 10/04/2011 |
| 8027428 | CT system and method for phase-contrast and absorption imaging A CT system is disclosed for phase-contrast and absorption imaging with a plurality of emitter-detector systems. In at least one embodiment, there are at least two emitter-detector systems and the at least two emitter-detector systems have a different distance betwe... | 09/27/2011 |
| 7949089 | Apparatus and method for tracking feature's position in human body A CT scanner for scanning a subject is provided, the scanner comprising: a gantry capable of rotating about a scanned subject; at least two cone beam X-Ray sources displaced from each other mounted on said gantry; at least one 2D detector array mounted on said gantr... | 05/24/2011 |
| 7933378 | Multi-tube X-ray detection A computed tomography system (100) includes a first (1081) and a second source (108N) disposed at different z-axis locations at about a same angular position around an examination region (112) that alternately emit r... | 04/26/2011 |
| 7894572 | Multi-tube imaging system reconstruction A tomographic apparatus (10) includes at least two x-ray sources (14) that rotate about and alternately emit radiation into an imaging region (22). The at least two x-ray sources (14) emit radiation from a first set of angular positions d... | 02/22/2011 |
| 7885375 | Method and system for X-ray imaging A technique is provided for imaging a field of view using an X-ray source comprising two or more emission points. The two or more emission points may be independently operated. Independent operation of the two or more emission points in performed in accordance with ... | 02/08/2011 |
| 7869561 | Cone-beam CT Apparatus for CT cone beam scanning, comprising: a table for holding a subject; a gantry; a first detector array, having a given number of rows of detector elements spaced along an rotation axis of... | 01/11/2011 |
| 7864917 | Imaging apparatus using distributed x-ray souces and method thereof An imaging apparatus includes a multi-dimensional assembly supporting a plurality of x-ray sources that are individually addressable. The plurality of x-ray sources is further configurable to simultaneously emit x-ray spectra at different mean energies. Furthermore,... | 01/04/2011 |
| 7860210 | Data normalization in inverse geometry computed tomography system A method for imaging an object in a computed tomography (CT) system with a plurality of sources comprising a first source and a second source, wherein the plurality of sources together with a detector array are mounted on a rotatable gantry, and wherein an intensity... | 12/28/2010 |
| 7848480 | X-ray CT scanner and data processing method of X-ray CT scanner An X-ray CT scanner includes X-ray tubes including a first X-ray tube and a second X-ray tube having fan angles different from each other, X-ray detectors including a first X-ray detector and a second X-ray detector which are respectively arranged to face the first ... | 12/07/2010 |
| 7844027 | XRD-based false alarm resolution in megavoltage computed tomography systems System and method for XRD-based false alarm resolution in computed tomography (“CT”) threat detection systems. Following a scan of an object with a megavoltage CT-based threat detection system, a suspicious area in the object is identified. The three dimensional... | 11/30/2010 |
| 7835486 | Acquisition and reconstruction of projection data using a stationary CT geometry Systems and methods are provided for acquiring and reconstructing projection data that is mathematically complete or sufficient using a computed tomography (CT) system having stationary distributed X-ray sources and detector arrays. In one embodiment, a distributed ... | 11/16/2010 |
| 7831012 | Radiation scanning systems and methods An apparatus may comprise a frame supporting at least first and second skewed radiation sources and at least first and second radiation detectors. The first and second radiation detectors may be substantially non-contiguous such that a substantial gap exists between... | 11/09/2010 |
| 7826585 | Stereo tube computed tomography A computed tomography system includes at least two x-ray sources (108), a at least one common detector (124), and a reconstruction system (136). The at least two x-ray sources (108) are aligned at different z-axis locations at about a sam... | 11/02/2010 |
| 7809101 | Modular multispot X-ray source and method of making same A modular x-ray source for an imaging system includes an electron source mounting plate, two or more electron sources each mounted on and electrically coupled to the electron source mounting plate, and a target block positioned proximately to the two or more electro... | 10/05/2010 |
| 7778386 | Methods for analytic reconstruction for mult-source inverse geometry CT Disclosed are embodiments of methods for reconstructing x-ray projection data (e.g., one or more sinograms) acquired using a multi-source, inverse-geometry computed tomography (“IGCT”) scanner. One embodiment of a first method processes an IGCT sinogram by rebin... | 08/17/2010 |
| 7711081 | Method for compiling computer tomographic representations using a CT system with at least two angularly offset ray sources A method is disclosed for compiling computer tomographic representations using a CT system with at least two angularly offset ray sources. A first ray cone with a relatively larger fan angle and a second ray cone with a relatively smaller fan angle scan an object ci... | 05/04/2010 |
| 7706499 | Acquisition and reconstruction of projection data using a stationary CT geometry Systems and methods are provided for acquiring and reconstructing projection data using a computed tomography (CT) system having stationary distributed X-ray sources and detector arrays. In one embodiment, a non-sequential activation of X-ray source locations on an ... | 04/27/2010 |
| 7672422 | Radiation scanning of objects for contraband Systems and methods for the radiation scanning of objects, including large objects such as cargo containers, to identify contraband. ... | 03/02/2010 |
| 7649973 | Apparatus and method for z-location dependent x-ray beam filtration for imaging system An imaging system includes at least two x-ray sources, an x-ray detector assembly and an attenuation filter. The at least two x-ray sources are displaced along a z-axis and configured to alternately emit x-ray beams. The x-ray detector assembly is configured to dete... | 01/19/2010 |
| 7639774 | Method and apparatus for employing multiple axial-sources A technique is provided for improving z-axis coverage and/or reducing cone beam artifacts during CT imaging. Multiple X-ray emission points are provided along the z-axis. Some or all of the emission points may be concurrently active. X-rays from concurrently active ... | 12/29/2009 |
| 7639775 | Method and system for imaging using multiple offset X-ray emission points A technique is provided for imaging a field of view using an X-ray source comprising two or more emission points. Each emission point is configured to emit a fan of radiation encompassing less than the entire field of view. The emission points are activated individu... | 12/29/2009 |
| 7634044 | Method for generating cardiac CT representations with application of a contrast medium, and multi-tube CT system for carrying out this method A method is disclosed for generating cardiac CT representations of a beating heart of a patient with the aid of a multi-tube CT system with application of a contrast medium. In at least one embodiment, the method includes carrying out a first CT scan with the multi-... | 12/15/2009 |
| 7627081 | Computer tomography apparatus with multiple x-ray radiation sources A computer tomography apparatus (100) for examination of an object of interest (107), the computer tomography apparatus (100) comprising a first electromagnetic radiation source (104) adapted to emit electromagnetic radiation to an object... | 12/01/2009 |
| 7596205 | X-ray hybrid diagnosis system An X-ray hybrid diagnosis system includes a single power supply, an X-ray radiography unit, an X-ray CT unit, and a single control console. The single power supply powers X-ray CR system having first X-ray tube and X-ray CT system having second X-ray tube. The X-ray... | 09/29/2009 |
| 7583784 | Method for calculating computed tomography pictures from detector data of a CT having at least two radiation sources A method is for calculating computed tomography pictures from detector data of a CT that uses at least two radiation sources that generate different conical beams. A spatial distribution of attenuation values of a scanned object is reconstructed with the aid of dete... | 09/01/2009 |
| 7564939 | Control means for heat load in X-ray scanning apparatus An X-ray scanning apparatus comprises a number of multi-focus X-ray tubes (25) spaced around an axis X and arranged to emit X-rays through an object on the axis which are detected by sensors (52). Each tube (25) can emit X-rays from a plurality ... | 07/21/2009 |
| 7486761 | Computed tomography facilitation method and apparatus A first X-ray detector (203) is positioned to detect at least the X-rays that intersect the center of rotation (201) for an object (205) with respect to an X-ray source (202). A second X-ray detector (207) is then positioned to det... | 02/03/2009 |
| 7460636 | CT scanning system with interlapping beams A CT scanning system including a gantry operable to rotate about a rotation axis, and a plurality of X-ray imagers mounted on the gantry, each X-ray imager including a radiation source and a detector, wherein the radiation source is operative to emit a radiation bea... | 12/02/2008 |
| 7453976 | Computerized tomography image reconstruction Systems and methods include coordinated (KV) and megaelectronvolt (MV) computerized tomography (CT) imaging. KV and MV data are combined using a normalization process in order to generate CT images. The resulting CT images can include an improved signal to noise rat... | 11/18/2008 |
| 7443955 | X-ray diagnosis apparatus and method for obtaining an X-ray image A method for obtaining an X-ray image for an X-ray diagnosis apparatus including plurality of imaging systems, including: collecting first scatter data using a first X-ray detector after an X-ray is irradiated from a first X-ray tube in a first imaging system; colle... | 10/28/2008 |
| 7443945 | Method for scattered radiation correction in the case of an X-ray CT, and X-ray CT for applying this method It is proposed to estimate the scattered radiation on the basis of a sinogram, which is measured in any case. In at least one embodiment, a method includes determining the potential scattering site for each measuring beam from the object tangents in the sinogram and... | 10/28/2008 |
| 7440547 | CT scanner A CT scanner which collects X-ray projection data of a subject and which generates an image in the subject from the projection data, the CT scanner includes tubes which emit X-rays and which include grids to switch emission and stoppage of the X-rays, a unit which g... | 10/21/2008 |
| 7440543 | X-ray monitoring Apparatus for monitoring in real time the movement of a plurality of substances in a mixture, such as oil water and air flowing through a pipe (24), comprises an X-ray scanner (8) arranged to make a plurality of scans of the mixture over a monitoring p... | 10/21/2008 |
| 7433443 | System and method of CT imaging with second tube/detector patching A CT imaging system includes a rotatable gantry having an opening to receive an object to be scanned, a first x-ray emission source attached to the rotatable gantry and configured to emit x-rays toward the object, and a second x-ray emission source attached to the r... | 10/07/2008 |
| 7428297 | Methods and apparatus for e-beam scanning In one aspect, an x-ray scanning device is provided. The x-ray scanning device comprises a target adapted to convert electron-beam (e-beam) energy into x-ray energy, a detector array positioned to detect at least some x-rays emitted from the target, and a conveyer m... | 09/23/2008 |
