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| Number | Title | Issue Date |
| 8189737 | Process and apparatus for microCT imaging of ex vivo specimens Processes for producing a microCT image for virtual histology using x-ray microscopic computed tomography are described along with processes for rapid and inexpensive high-throughput methods of high resolution imaging for screening an ex vivo embryo for phenotype us... | 05/29/2012 |
| 8121250 | Method for calibration of a CT scanner A method for calibration of a CT comprises sequentially positioning a phantom having a non-circular cross section and a length commensurate with the extent of a detector at a plurality of positions between an X ray source and the detector array or sequentially posit... | 02/21/2012 |
| 7738624 | Adjustable phantom An adjustable phantom (36) includes a base (202), an actuator (204) and a phantom (210). The phantom includes first (210a) and second portions (210b), each having a different value of a physical characteristic ... | 06/15/2010 |
| 7630473 | Method for correcting truncation artifacts The invention relates to a method and an apparatus for correcting truncation artifacts in a tomographic process of an object under medical examination. To prevent truncation artifacts in a tomographic process, it is proposed to extrapolate truncated projection image... | 12/08/2009 |
| 7570734 | Method and apparatus for X-ray image correction In an X-ray computerized tomography scanner, a correction phantom embedding an X-ray absorbing object is put on or around a non-vertical rotary axis between an X-ray source and a two-dimensional X-ray detector, and two dimensional imaging data of the phantom is acqu... | 08/04/2009 |
| 7439493 | Multimodality imaging phantom and process for manufacturing said phantom A multimodality imaging phantom is disclosed which is useful for calibrating devices for imaging vascular conduits. The phantom is compatible with X-ray, ultrasound and magnetic resonance imaging techniques. It allows testing, calibration, and inter-modality compara... | 10/21/2008 |
| 7409035 | Phantom for improving coronary calcium scoring consistency Methods and devices for improving the machine-to-machine and temporal (e.g., inter and intra-machine) and database consistency of coronary calcium scoring by applying a filtering algorithm that sharpens and/or smoothes the image so as to return a filtered image havi... | 08/05/2008 |
| 7397024 | Phantom for the quality control of a radiotherapy treatment virtual simulation system The invention relates to a phantom for the quality control of a radiotherapy treatment virtual simulation system which comprises a medical imaging device, characterized in that it comprises: a support casing (1), ... | 07/08/2008 |
| 7391844 | Method and apparatus for correcting for beam hardening in CT images A method for determining a correction for beam hardening in CT images includes obtaining air scans at a plurality of kVp's, determining detection efficiencies for detector elements of the CT imaging apparatus, and estimating projection values through a combination o... | 06/24/2008 |
| 7379527 | Methods and apparatus for CT calibration A method for normalizing a calibration of a computed tomographic (CT) imaging apparatus having a plurality of detector rows includes utilizing a prestored, predetermined inversion matrix and CT numbers obtained from images of a phantom to determine normalized calibr... | 05/27/2008 |
| 7372936 | Radiation computed tomography apparatus and tomographic image data generating method A radiation computed tomography apparatus that includes a radiation detector having a plurality of radiation detector elements arranged in a two-dimensional manner for detecting radiation passing through a subject, and a reconstructing device for arithmetically reco... | 05/13/2008 |
| 7336759 | Scattering compensating method and scattering measuring method A method for compensating scattering includes acquiring the projective length of non-subject entities and acquiring the projective length of an object of radiography wherein the object of radiography is radiographed with a beam thickness set to the same value as a d... | 02/26/2008 |
| 7313217 | System and method of collecting imaging subject positioning information for x-ray flux control A system and method of diagnostic imaging is provided that includes positioning a subject in an imaging device, collecting positioning information of the subject from at least one sensor disposed in proximity of the imaging device, and determining a relative positio... | 12/25/2007 |
| 7295691 | Computer aided diagnosis of an image set A method, system, and storage medium for computer aided processing of an image set includes employing a data source, the data source including an image set acquired from X-ray projection imaging, x-ray computed tomography, or x-ray tomosynthesis, defining a region o... | 11/13/2007 |
| 7292674 | Methods and devices for quantitative analysis of x-ray images The present invention relates to network enabled analysis of x-ray images. Also described are devices comprising calibration phantoms; methods of using these devices; methods of formulating databases containing information regarding x-ray images; the databases thems... | 11/06/2007 |
| 7292721 | Calibration of tissue densities in computerized tomography A hybrid calibration method uses a calibration phantom (exterior reference) scanned simultaneously with the patient, and one or more known tissues of the subject (interior reference) to create a hybrid calibration reference that improves the measurement of tissue de... | 11/06/2007 |
| 7288759 | Tissue-like phantoms The invention is based, in part, on the discovery that by combining certain components one can generate a tissue-like phantom that mimics any desired tissue, is simple and inexpensive to prepare, and is stable over many weeks or months. In addition, new multi-modal ... | 10/30/2007 |
| 7286631 | Method and apparatus for tomosynthesis image quality control A method and apparatus for tomosynthesis image quality control for a tomosynthesis imaging system. The method and apparatus including: positioning a phantom having an edge of predetermined sharpness at a predetermined angle relative to an imaging plane of an x-ray d... | 10/23/2007 |
| 7283605 | Methods and apparatus for scatter correction A method for reconstructing an image of an object includes scanning the object with a computed tomography (CT) system to obtain data, estimating a size of the object using the obtained data, using the estimated size of the object to perform scatter correction on the... | 10/16/2007 |
| 7281850 | Method and apparatus for aligning a fourth generation computed tomography system A method and apparatus for the alignment of a fourth generation Computed Tomography (CT) system is provided. The method includes receiving X-ray scan data from the CT system, and processing the received X-ray scan data to automatically generate alignment correction ... | 10/16/2007 |
| 7283604 | Method and system of CT data correction An adaptive CT data acquisition system and technique is presented whereby radiation emitted for CT data acquisition is dynamically controlled to limit exposure to those detectors of a CT detector assembly that may be particularly susceptible to saturation during a g... | 10/16/2007 |
| 7272766 | Method of making tissue simulating analog materials and models made from same Disclosed herein are synthetic anatomical models, and methods of making and using same, that are designed to enable simulated use testing by medical device companies, medical device designers, individual inventors, or any other entity interested in the performance o... | 09/18/2007 |
| 7269243 | Method and apparatus for controlling electron beam motion based on calibration information Certain embodiments relate to a method for calibrating an imaging system having an array of detector elements arranged with respect to a reference position and having an energy source moving in a pattern to irradiate the array of detector elements. The method includ... | 09/11/2007 |
| 7263164 | Imaging system to compensate for x-ray scatter A system includes acquisition of a first image of a first radiation field, at least a portion of the first radiation field comprising radiation attenuated by a device, and the first image including a representation of first scatter radiation generated during acquisi... | 08/28/2007 |
| 7263214 | Computer aided diagnosis from multiple energy images A method, system, and storage medium for computer aided processing of dual or multiple energy images includes employing a data source, the data source including a dual or multiple energy image set, defining a region of interest within one or more images from the dua... | 08/28/2007 |
| 7260169 | Device and method for computer tomography A device and a method for the multispectral correction of radiation hardening in computer tomography with variable tube voltage is described. In particular, a water correction and a post-reconstructive hardening correction is disclosed. To perform the water correcti... | 08/21/2007 |
| 7260172 | Method and system of CT data correction An adaptive CT data acquisition system and technique is presented whereby radiation emitted for CT data acquisition is dynamically controlled to limit exposure to those detectors of a CT detector assembly that may be particularly susceptible to saturation during a g... | 08/21/2007 |
| 7260174 | Direct conversion energy discriminating CT detector with over-ranging correction A CT detector capable of energy discrimination and direct conversion is disclosed. The detector includes multiple layers of semiconductor material with the layers having varying thicknesses. The detector is constructed to be segmented in the x-ray penetration direct... | 08/21/2007 |
| 7260183 | Filter and X-ray imaging device In order to realize a filter that can make a fine spectrum adjustment in a wide rage and can be miniaturized, and to realize an X-ray imaging apparatus provided with the filter, a filter of the present invention is provided with plural filter plates that can form a ... | 08/21/2007 |
| 7254216 | Methods and apparatus for filtering a radiation beam and CT imaging systems using same A filter assembly for a computed tomographic imaging system includes first and second endplates at opposite ends of the filter assembly. Also provided is a first moveable subassembly that includes at least a first x-ray filter and which is configured to move along a... | 08/07/2007 |
| 7245697 | Methods and devices for quantitative analysis of x-ray images The present invention relates to network enabled analysis of x-ray images. Also described are devices comprising calibration phantoms; methods of using these devices; methods of formulating databases containing information regarding x-ray images; the databases thems... | 07/17/2007 |
| 7233645 | Systems and methods for controlling an X-ray source A control system for an X-ray source includes a sensor interface for receiving one or more sensor signals representative of operation of the X-ray source; a programmable controller operative in response to the one or more sensor signals and a sequence of control ins... | 06/19/2007 |
| 7224764 | Stand-up CT scanner A CT scanner according to the present invention is particularly useful for scanning the spine and extremities, such as knees, and ankles, especially while the patient is in an upright position. The CT scanner generally includes a source and detector that are rotatab... | 05/29/2007 |
| 7197404 | Computation of radiating particle and wave distributions using a generalized discrete field constructed from representative ray sets The present system and method for simulating particles and waves is useful for calculations involving nuclear and full spectrum radiation transport, quantum particle transport, plasma transport and charged particle transport. The invention provides a mechanism for c... | 03/27/2007 |
| 7186023 | Slice image and/or dimensional image creating method Projection images of a calibration phantom are picked up and stored. Three-dimensional position information on an X-ray tube and an area detector is obtained from the projection images and three-dimensional arrangement information on markers inside the calibration p... | 03/06/2007 |
| 7173238 | QC phantom The phantom for quality control used to perform verification of performance and invariance of a radiation imaging system includes substrates and image quality evaluation patterns fixed to the substrates. The patterns is photographed with the system and images obtain... | 02/06/2007 |
| 7162064 | Method for operating a computed tomography device A method for operating a computed tomograph device is provided by which volume data pertaining to a volume area of a test object can be recorded. A marking for identifying a reconstruction area to be reconstructed is faded into an x-ray shadow image containing the v... | 01/09/2007 |
| 7158691 | Image evaluating method and apparatus An input of an evaluation object image signal representing an evaluation object image with respect to a pattern composed of a plurality of evaluating regions, in each of which at least one signal area is located at a predetermined position, is accepted. The evaluati... | 01/02/2007 |
| 7151816 | Imaging tomography apparatus having an attached patient support with a movable backrest An imaging tomography apparatus, such as an x-ray computed tomography apparatus or a magnetic resonance tomography apparatus, has a patient bed that can be driven into a tunnel-shaped or annular data acquisition device. To increase comfort for the patient and access... | 12/19/2006 |
| 7151253 | Dynamic phantom for radiation therapy The present invention is a thorax phantom that enables simulation of tumor motion within a tissue equivalent material. The system consists of a tissue equivalent epoxy phantom representing a 15 cm axial section of the human thorax that includes simplified spine and ... | 12/19/2006 |
