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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...
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8164064 |
Localization of a radioactive source within a body of a subject
A computerized system for locating a device including a sensor module and a processor. A radioactive source, associated with the device, produces a signal in the form of radioactive...
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8155262 |
Methods, systems, and computer program products for multiplexing computed tomography
Methods, systems, and computer program products for multiplexing computed tomography are disclosed. According to one aspect, the subject matter described herein can include illuminating an object...
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8155272 |
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...
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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...
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8130906 |
Radiation imaging and therapy apparatus for breast
A breast radiation imaging and therapy apparatus for performing radiation imaging of a breast and having a therapy function of applying radiation to an affected part in the breast. The apparatus...
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8102963 |
CT scanner using injected contrast agent and method of use
A CT scanner includes a first X-ray beam source, and a second X-ray beam source. With such an apparatus, first source is used to monitor buildup of an injected contrast agent in a selected region...
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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...
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8081732 |
Correcting transverse scattering in a multi-emitter CT scanner
A multi-emitter computed tomography scanner is disclosed, including a plurality of x-ray emitter/detector arrangement pairs arranged offset at an angle to one another. In at least one embodiment,...
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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...
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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...
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8031831 |
Voltage and or current modulation in dual energy computed tomography
To prevent patients from being overexposed or underexposed, it has been attempted to modulate either voltage or current in conventional single energy CT systems. The voltage modulation causes...
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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...
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7991114 |
Multi X-ray imaging apparatus and control method therefor
An X-ray imaging apparatus includes a multi X-ray source which includes a plurality of X-ray focuses to generate X-rays by irradiating X-ray targets with electron beams, a detector which detects...
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7976218 |
Apparatus for providing shielding in a multispot x-ray source and method of making same
A modular x-ray source for an imaging system includes a structure forming a cavity and having a first wall and a second wall, at least one target positioned on the first wall within the cavity and...
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7961838 |
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...
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7957502 |
Method for scaling scattered ray intensity distribution in multi bulbs X-ray CT and multi bulbs X-ray CT apparatus
A method for scaling a scattered ray intensity distribution in a multi bulbs X-ray CT apparatus configured to irradiate a subject with X-rays from a plurality of X-ray generation sections,...
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7949101 |
X-ray scanners and X-ray sources therefor
The present invention is directed toward an X-ray scanner that has an electron source and an anode. The anode has a target surface with a series of material areas spaced along it in a scanning...
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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...
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7940888 |
X-ray imaging apparatus, method of controlling the same, and computer program
An X-ray imaging apparatus includes an X-ray source including a plurality of X-ray focuses, an X-ray detector which detects X-rays emitted from the X-ray focuses and transmitted through an object,...
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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...
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7929659 |
System and method for generating computed tomography images
A computed tomographic imaging system is provided for generating computed tomography images. The computed tomographic system includes a processor configured to access image data encoding X-ray...
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7929663 |
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 comprises an X-ray scanner arranged to make a...
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7899151 |
Operating method for a swiveling polyplanar imaging system for time-resolved imaging of an object being examined
An operating method for a polyplanar imaging system for time-resolved imaging of an object is provided. First and second data records are recorded at a fan angle β from different angular positions ...
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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...
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7889835 |
System and method for detecting an object by dynamically adjusting computational load
A system and method for ascertaining the identity of an object within an enclosed article. The system includes an acquisition subsystem, a reconstruction subsystem, a computer-aided detection (CAD)...
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7889834 |
Method for preparing reconstructed CT image data records and CT system
A method and CT system are disclosed for preparing reconstructed CT image data records. In at least one embodiment of the method, an initial material distribution of an examination object is...
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7885378 |
Imaging system and related techniques
An imaging method and apparatus is described in which distances between a source and an object are changed and projection images are generated at each of the different distances.
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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...
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7876881 |
Linear accelerator with wide bore CT scanner
A system according to some embodiments may include a treatment head to emit a megavoltage radiation beam toward a volume, a plurality of X-ray sources to emit a respective kilovoltage radiation...
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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...
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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...
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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...
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7856078 |
Method and X-ray CT system for generating computed tomography displays
A method is disclosed for generating computed tomography displays, in which with the aid of at least one X-ray source, an examination object is scanned in a rotationally circulating fashion with a...
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7856077 |
CT scanner and method for helical scanning of an examination object which has at least one portion undergoing periodic motion
At least one embodiment of the present invention relates to a CT scanner and/or a method for helical scanning of an examination object which has at least one portion undergoing periodic motion. In...
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7852984 |
Method and device for the separate three-dimensional representation of the arterial and venous vascular system using C-arm angiography systems
The invention relates to a method and a device for the separate three-dimensional representation of arteries and/or veins in a vascular system of the body by means of a C-arm biplanar system having...
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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...
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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 s...
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7844032 |
Apparatus for providing collimation in a multispot X-ray source and method of making same
A collimator includes a first plate having an aperture therein, the aperture configured to allow passage of a beam of x-rays from a source of a multi-spot source therethrough, and a second plate...
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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...
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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...
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7826594 |
Virtual matrix control scheme for multiple spot X-ray source
A system and method for addressing individual electron emitters in an emitter array is disclosed. The system includes an emitter array comprising a plurality of emitter elements arranged in a...
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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...
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7813473 |
Method and apparatus for generating temporally interpolated projections
A technique is provided for the temporal interpolation of a projection data set acquired of a dynamic object, such as a heart. The projection data set is acquired using a slowly rotating gantry and...
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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,...
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7806589 |
Bi-plane X-ray imaging system
A high-speed biplane radiography system for in-vivo assessment of joint function is provided. The system can acquire stereo-pair radiographic images at rates from 30-4000 frames per second of...
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7801265 |
System and method for creating mixed image from dual-energy CT data
A system and method for creating a combined or mixed-energy image using both low- and high-energy CT data sets acquired using a dual-energy CT system. The low- and high-energy datasets are mixed...
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7778454 |
Method and apparatus for determining the concentration of a substance in a body material by means of multi-energy computed tomography
At least one embodiment of the present application relates to a method and/or an apparatus for determining the concentration of a substance in a body material that is composed of two different...
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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...
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7746974 |
Radiographic and fluoroscopic CT imaging
A system includes emission of first electrons toward a first focal spot using an X-ray tube located at a first position, emission of first radiation from the first focal spot toward an object,...
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