| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 378022000 | With nonphotographic detector | 30 |
| 20080232545 | TOMOSYNTHESIS IMAGING SYSTEM AND METHOD - A system for three-dimensional tomosynthesis imaging of a target element is provided having an image acquisition element and a processor. The image acquisition element obtains a plurality of images of the target element from a plurality of angles and includes a radiation source that is positionable at a plurality of angles with respect to the target element and a radiation detector. The radiation detector is positioned so as to detect radiation emitted by the radiation source passing through the target element and determine a plurality of attenuation values for radiation passing through the target element to establish a radiation absorbance projection image of the target element for a particular radiation source angle. The processor is configured to apply an iterative reconstruction algorithm to the radiation absorbance projection images of the target element obtained from a plurality of radiation source angles to generate a three-dimensional reconstruction of the target element. The system can gain further accuracy where the iterative reconstruction algorithm is applied using cone-beam forward projection and back projection. | 09-25-2008 |
| 20080240343 | Portable digital tomosynthesis imaging system and method - A portable tomosynthesis imaging system is disclosed that includes a portable X-ray source assembly and a portable detector assembly. The source assembly may be coupled to a portable power supply and controller such that multiple projection X-ray images may be obtained at a site that is not accessible by conventional tomosynthesis imaging systems. Image data may be transmitted from the detector by wired or wireless communication. Tomosynthesis image reconstruction may be performed locally at the portable system or remotely by the transmission of raw or filtered image data from the portable system. The portable system is particularly well-suited to field deployment, such as at accident scenes, scenes of natural or other disasters, or in confined clinical settings. | 10-02-2008 |
| 20080285711 | SYSTEMS, METHODS AND APPARATUS TO IMAGE OBJECTS - Systems, methods and apparatus are provided through which in some embodiments a time series is generated from a plurality of X-ray projections of an object that were acquired under limited angular conditions with a flat-panel X-ray detector, and thereafter the plurality of X-ray projections in the time series are displayed in reference to a pivot point. | 11-20-2008 |
| 20090060126 | Photodetection unit, photodetector, and x-ray computed tomography apparatus - A photodetecting unit having a favorable attaching operability is provided. | 03-05-2009 |
| 20090086889 | SYSTEM AND METHOD FOR TOMOSYNTHESIS - A system may comprise a plurality of imaging x-ray sources disposed in a fixed relation with respect to one another, each of the plurality of imaging x-ray sources to emit a respective imaging x-ray, an x-ray detector to acquire x-ray absorption projections of an object, each of the x-ray absorption projections associated with an imaging x-ray emitted by a respective one of the plurality of imaging x-ray sources, and a processor to perform digital tomosynthesis using the x-ray absorption projections to generate a cross-sectional image of the object. | 04-02-2009 |
| 20100080342 | Tomosynthesis radiographing apparatus - Providing a radiation emission unit having multiple radiation sources for emitting radiation onto a subject, in which the multiple radiation sources are distributed such that the radiation emitted from each radiation source and transmitted through the subject forms a part of a projected image of the subject. Each radiation source is a source that emits fan beam radiation and is disposed such that a plane of the fan beam having a wider spread angle intersects with an arrangement direction of the multiple radiation sources and is arranged parallel to each other. | 04-01-2010 |
| 20100091940 | TOMOSYNTHESIS APPARATUS AND METHOD TO OPERATE A TOMOSYNTHESIS APPARATUS - A tomosynthesis apparatus has an x-ray source that generates an x-ray beam emanating from a focus, which is received by a flat panel detector. To set a tomosynthesis angle, the position of the central axis of the x-ray beam of the x-ray source is variable. A collimator diaphragm has a diaphragm aperture that limits the expansion of the x-ray beam at the location of the flat panel detector. The collimator diaphragm is arranged in the beam path between the focus and the flat panel detector. The shape and size of the diaphragm aperture are dynamically varied (adjusted) dependent on the changing tomosynthesis angle, such that the expansion of the x-ray beam at the location of the flat panel detector always essentially corresponds to the detector dimensions. | 04-15-2010 |
| 20100135456 | Full Field Mammography With Tissue Exposure Control, Tomosynthesis, and Dynamic Field of View Processing - A mammography system using a tissue exposure control relying on estimates of the thickness of the compressed and immobilized breast and of breast density to automatically derive one or more technic factors. The system further uses a tomosynthesis arrangement that maintains the focus of an anti-scatter grid on the x-ray source and also maintains the field of view of the x-ray receptor. Finally, the system finds an outline that forms a reduced field of view that still encompasses the breast in the image, and uses for further processing, transmission or archival storage the data within said reduced field of view. | 06-03-2010 |
| 20100150305 | DEVICE AND METHOD FOR TIME-DELAYED INTEGRATION ON AN X-RAY DETECTOR COMPOSED OF A PLURALITY OF DETECTOR MODULES - An X-ray detector for recording an image of an object that is moving relative to the detector includes a plurality of detector modules which are adjacently disposed so that they partially overlap. Using the detector modules, a TDI (Time Delayed Integration) is performed within each detector module. Subsequently an evaluation unit determines corrected measurement values of an overlap region by adding the measured values from the individual detector modules in the overlap region. | 06-17-2010 |
| 20100215145 | APPARATUS AND METHOD FOR RECORDING RADIATION IMAGE DATA OF AN OBJECT - An apparatus for recording radiation image data of an object comprises a radiation source arrangement ( | 08-26-2010 |
| 20110002442 | CIRCULAR TOMOSYNTHESIS X-RAY TUBE - Tomosynthesis system with a rotating anode X-ray tube enabling a circular scan trajectory, wherein the X-ray tube | 01-06-2011 |
| 20110150178 | METHOD FOR PROCESSING TOMOSYNTHESIS ACQUISITIONS IN ORDER TO OBTAIN A REPRESENTATION OF THE CONTENTS OF AN ORGAN - A method for processing tomosynthesis images of an object of interest, using an imaging system, the imaging system comprising an X-ray source positioned facing a detector on which the object of interest is positioned. With the method of an embodiment of the invention, it is possible to obtain a representation of the contents of an organ. | 06-23-2011 |
| 20110216879 | Full Field Mammography With Tissue Exposure Control, Tomosynthesis, And Dynamic Field Of View Processing - A mammography system using a tissue exposure control relying on estimates of the thickness of the compressed and immobilized breast and of breast density to automatically derive one or more technic factors. The system further uses a tomosynthesis arrangement that maintains the focus of an anti-scatter grid on the x-ray source and also maintains the field of view of the x-ray receptor. Finally, the system finds an outline that forms a reduced field of view that still encompasses the breast in the image, and uses for further processing, transmission or archival storage the data within said reduced field of view. | 09-08-2011 |
| 20110255660 | X-RAY INSPECTION METHOD AND X-RAY INSPECTION APPARATUS - An X-ray inspection apparatus includes an X-ray source, an X-ray detector, an X-ray detector drive unit, an image acquisition control mechanism for controlling driving of the X-ray detector by the X-ray detector drive unit and acquisition of image data from the X-ray detector, an inspection object drive mechanism for moving an inspection object, an X-ray source control mechanism, and an operation unit. The X-ray source control mechanism causes the X-ray source to output an X-ray based on an instruction from the operation unit. The image acquisition control mechanism moves the X-ray detector to a plurality of image pickup positions aligned in the Y direction based on an instruction from the operation unit. The inspection object drive mechanism moves the inspection object in the Y direction such that the X-ray detector can detect an X-ray transmitted through the inspection object at each image pickup position based on an instruction from the operation unit. | 10-20-2011 |
| 20110274241 | RADIATION TOMOGRAPHY APPARATUS - This invention has one object to provide radiation tomography apparatus that allows suppression of arithmetic load of detection data with a wider detector ring. In order to achieve this purpose, the radiation tomography apparatus according to this invention performs coincidence only when two scintillation counter crystals that detect gamma rays coincidentally (A) belong to the same ring unit, or (B) belong to each of the ring units adjacent to each other. Accordingly, a distance in the central axis direction between the radiation detecting elements is limited to be equal to or less than a thickness of the ring unit in the central axis direction. Accordingly, radiation tomography apparatus may be provided that allows generation of the sectional image suitable for diagnosis while arithmetic load is suppressed. | 11-10-2011 |
| 20120128124 | WALK-THROUGH IMAGING SYSTEM HAVING VERTICAL LINEAR X-RAY SOURCE - A system and method for acquiring x-ray imaging data from a subject is disclosed. The x-ray imaging system includes a first support structure oriented in a vertical fashion and a second support structure oriented in a vertical fashion and spaced apart from the first support structure to define a scanning area configured to receive a subject to be scanned. A linear x-ray source is affixed to the first support structure on one side of the scanning area and is oriented in a vertical fashion, with the linear x-ray source configured to emit x-rays towards the subject. A linear detector arrangement is affixed to the second support structure on another side of the scanning area and is generally opposite the linear x-ray source. The linear detector arrangement is configured to receive x-rays after passing through the subject. | 05-24-2012 |
| 20120134464 | METHOD TO SHOW A CONCENTRATION OF A CONTRAST AGENT IN A PREDETERMINED VOLUME SEGMENT BY MEANS OF TOMOSYNTHESIS, AND CORRESPONDING TOMOSYNTHESIS APPARATUS - In an imaging method and a tomosynthesis apparatus, a two-dimensional low-energy image of the predetermined volume segment is obtained after administration of a contrast agent, followed by a two-dimensional high-energy image and then a high-energy tomosynthesis of the predetermined volume segment is obtained with a high total radiation dose that is significantly higher than the low radiation dose. The two-dimensional low-energy image is subtracted from the two-dimensional high-energy image to generate a result with which the concentration of the contrast agent is visible. Additionally, in a time interval in which an enrichment or a washing-out of the contrast agent occurs within the predetermined volume segment, a tomosynthesis of the predetermined volume segment is automatically implemented to show the concentration of the contrast agent in the predetermined volume segment. | 05-31-2012 |
| 20120140877 | BODY SECTION RADIOGRAPHIC APPARATUS, AND A NOISE REMOVING METHOD FOR THE BODY SECTION RADIOGRAPHIC APPARATUS - A body section radiographic apparatus for serially acquiring a series of fluoroscopic images while synchronously moving a radiation source and a radiation detecting device, and obtaining a sectional image of a subject from the series of fluoroscopic images. The apparatus includes, besides the radiation source which emits a beam of radiation and the radiation detecting device which is opposed to the radiation source and has a plurality of radiation detecting elements, a synchronous moving device for moving the radiation source and the radiation detecting device synchronously with each other, and a radiation grid disposed to cover a radiation detecting plane of the radiation detecting device for removing scattered radiation. The fluoroscopic images are serially acquired while moving the radiation grid relative to the radiation detecting device to change positions where radiation transmission unevenness of the radiation grid is projected on the radiation detecting device. | 06-07-2012 |
| 20120140878 | PROCESS AND SYSTEM FOR GENERATION OF TOMOSYNTHESIS IMAGES WITH BLUR REDUCTION - A method for imaging a series of medical images by tomosynthesis with blur reduction with an imaging system comprising a radiation source configured to emit a total radiation dose, a detector, and a control unit configured to control the source is provided. The method comprises positioning, with the control unit, the source in at least two positions relative to the detector. The method also comprises emitting an individual radiation dose at least partially detected by the detector in each of the at least two positions. The method further comprises distributing, with the control unit, the total radiation dose among the individual radiation doses such that the strongest individual radiation doses are emitted by the source in positions corresponding to the beginning of an imaging session of the series of medical images. | 06-07-2012 |
| 20120189096 | X-RAY DEVICE AND X-RAY SENSITIVE CAMERA FOR PANORAMIC TOMOGRAPHY AND 3D SHOTS - The invention relates to an X-ray device comprising an x-ray sensitive camera for creating tomograms, especially panoramic tomograms. Means for creating 3D shots of a partial volume of the mandibular arch are also provided, said 3D shots being created especially by a second image receiver for creating a 2D shot and means for taking a plurality of 2D shots from different directions and creating a 3D shot therefrom, preferably according to conebeam technology with the associated reconstruction algorithms. The x-ray sensitive camera comprises a first x-ray sensitive image receiver for creating a tomogram, and a second x-ray sensitive image receiver for creating plane shots. | 07-26-2012 |
| 20120219108 | APPARATUS FOR TOMOSYNTHESIS AND MAMMOGRAPHY - An apparatus for performing tomosynthesis and mammography of a breast of a patient, comprises: an X-ray detector device, designed to receive and detect X-rays in a first, detection plane; a plurality of X-ray sources, stably positioned in a second plane which is substantially at a right angle to the first, detection plane in a plurality of predetermined positions relative to the detector device, each of the sources being individually activatable for emitting a corresponding X-ray beam towards the first, detection plane; a region for positioning the breast; a processing and control unit, connected to the X-ray sources for activating them individually and connected to the detector device for receiving a signal relating to the X-rays which passed through the breast and were detected by the detector device, the unit being designed to derive from the signal at least one radiographic image representative of the internal structure of the patient's breast. | 08-30-2012 |
| 20120300901 | DISTRIBUTED X-RAY SOURCE AND X-RAY IMAGING SYSTEM COMPRISING THE SAME - A distributed X-ray source ( | 11-29-2012 |
| 20130148779 | RADIATION TOMOGRAPHY APPARATUS - Provided is a radiation tomography apparatus that performs radiography for a series of fluoroscopic images while moving a radiation source and a radiation detecting device synchronously in opposite directions to each other and obtains a tomographic image of a subject based on the fluoroscopic images. The radiation tomography apparatus allows to preview the tomographic image obtained through the radiography immediately after completion of the radiography. A preview image for previewing a sectional image of a subject is generated besides a tomographic image for diagnosis. The preview image can be obtained through simpler computing processing. Consequently, an operator sees once the preview image displayed on a display unit prior to the tomographic image for diagnosis, thereby determining to conduct radiography again quickly. | 06-13-2013 |
| 20130216020 | RADIATION TOMOGRAPHY APPARATUS - One object of this invention is to provide a radiation tomography apparatus for acquiring a tomographic image from a plurality of fluoroscopic images. The radiation tomography apparatus can acquire the tomographic image having superior visibility without being influenced by a shadow of a collimator appearing in the fluoroscopic image when radiation is applied only to a portion of an FPD through control a the collimator. In this invention, a boundary between a shadow area where the shadow of the collimator appears in the fluoroscopic image and a non-shadow area is identified, and the shadow area in the fluoroscopic image is complemented by the non-shadow area, etc., whereby a complement image is generated. Then the complement image is used for generating the tomographic image. According to this invention, an extremely dark area where the shadow of the collimator appears is removed and thereafter the tomographic image is generated. As a result, the tomographic image has superior visibility with no blurring due to the shadow of the collimator. | 08-22-2013 |
| 20140241492 | MULTIRADIATION GENERATION APPARATUS AND RADIATION IMAGING SYSTEM - A multiradiation generation apparatus according to the present invention includes a plurality of radiation sources arranged in a row. Each of the radiation sources includes an electron source configured to emit electrons and a target unit configured to generate radiation upon receiving electrons emitted from the electron source. At least one of the radiation sources is a dual-purpose radiation source used for both tomosynthesis imaging and non-tomosynthesis imaging, and the other radiation sources are single-purpose radiation sources used only for tomosynthesis imaging. | 08-28-2014 |
| 20140376690 | FULL FIELD MAMMOGRAPHY WITH TISSUE EXPOSURE CONTROL, TOMOSYNTHESIS, AND DYNAMIC FIELD OF VIEW PROCESSING - A mammography system using a tissue exposure control relying on estimates of the thickness of the compressed and immobilized breast and of breast density to automatically derive one or more technic factors. The system further uses a tomosynthesis arrangement that maintains the focus of an anti-scatter grid on the x-ray source and also maintains the field of view of the x-ray receptor. Finally, the system finds an outline that forms a reduced field of view that still encompasses the breast in the image, and uses for further processing, transmission or archival storage the data within said reduced field of view. | 12-25-2014 |
| 20160015333 | RADIOGRAPHY SYSTEM AND RADIOGRAPHY METHOD - A radiography system includes an imaging controller, a reconstruction processor, a process sequence controller and a display section. The imaging controller controls a radiation source to move in a range of a designated sweep angle and project X-rays at different angles to an imaging subject, while controlling a flat panel detector to acquire a set of projection images. The reconstruction processor uses the set of projection images to produce a plurality of tomographic images for use in diagnosis. The process sequence controller determines a parameter for sorting the plurality of tomographic images into first and second groups according to the sweep angle of the radiation source so as the first group of tomographic images to be produced prior to the second group of tomographic images. The display section displays at least the first group of tomographic images. | 01-21-2016 |
| 20160022230 | X-RAY SCATTER REDUCING DEVICE FOR USE WITH 2D AND 3D MAMMOGRAPHY - Systems and methods for reducing X-ray scatter during breast imaging, and more specifically during tomosynthesis imaging. In one embodiment, an anti-scatter grid having a plurality of septa may be configured to be positioned relative to an X-ray imaging device such that each septum of the plurality of septa extends along a direction substantially parallel to a coronal plane of a subject during imaging of the subject using the X-ray imaging device. The X-ray imaging device may be operable in a tomosynthesis mode for imaging of a breast of the subject and may include the anti-scatter grid disposed between a breast platform and the X-ray detector. The anti-scatter grid may be configured to move in a direction substantially parallel to a sagittal plane of the subject during tomosynthesis imaging. | 01-28-2016 |
| 20160089099 | IMAGE DISPLAYING DEVICE, IMAGE PROCESSING DEVICE, RADIOGRAPHIC IMAGING SYSTEM, SECTIONAL IMAGE DISPLAYING METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - The present invention provides an image displaying device including: a display section that displays a pair of mutually related sectional images; a reception section that, for one of the sectional image pair, receives a successive change instruction for a slice position; a generation section that generates a combined sectional image, corresponding to the slice position of the one sectional image, from the other sectional image of the pair; and a controller that, in cases in which the reception section has received the successive change instruction, effects control to switch display of the one sectional image from the one sectional image being displayed to the one sectional image that corresponds to the slice position indicated in the instruction, and, in conjunction with switching, to successively switch display of the other sectional image from the other sectional image that is being displayed to the combined sectional image. | 03-31-2016 |
| 20160199017 | INFORMATION PROCESSING DEVICE, IMAGING SYSTEM, INFORMATION PROCESSING METHOD AND PROGRAM | 07-14-2016 |
