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7616731 |
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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7615755 |
Photon counting detector with comparator and switchover rate analyzer
The invention relates to detectors for radiological imaging, and more particularly the X-ray matrix detectors, produced in the form of a CMOS technology pixel matrix, associated with a structure...
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7613274 |
Method and system of energy integrating and photon counting using layered photon counting detector
A diagnostic imaging system includes an x-ray source that emits a beam of x-ray energy toward an object to be imaged and an energy discriminating (ED) detector that receives the x-ray energy...
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7609804 |
Cast collimators for CT detectors and methods of making same
Cast collimators for use in CT imaging systems are described, as are methods of making them. Such collimators may comprise pre-patient collimators, pre-patient filter/collimator assemblies, and/or...
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7606347 |
Photon counting x-ray detector with overrange logic control
A CT detector includes a first detector configured to convert radiographic energy to electrical signals representative of energy sensitive radiographic data and a second detector configured to...
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7606346 |
CT detector module construction
A detector module for a CT imaging system is provided. The detector module includes a sensor element to convert x-rays to electrical signals. The sensor element is coupled to a data acquisition...
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7602881 |
Radiation detection unit for a computer tomograph
A radiation detection unit is disclosed for a computer tomograph, and a computer tomograph having a radiation detection unit is also disclosed. In at least one embodiment, the radiation detection...
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7601962 |
Systems and methods for reading data
A system for reading data is described. The system includes a detector that includes a first semiconductor device and a second semiconductor device. The second semiconductor device is configured to...
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7599464 |
Method and computed tomography system for producing tomograms of an object
A method and a computed tomography system are disclosed for producing computed tomograms of an object. A set of detector output data that represent beams over a specific angular range and a scan of...
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7594752 |
Apparatus and method for checking the alignment of laser beams on a diagnostic and/or therapeutic machine
An apparatus for checking the alignment of laser beams for indicating a position in relation to a diagnostic and/or therapeutic machine, which has a isocentre, wherein the machine has a patient...
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7583790 |
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...
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7583785 |
Detecting apparatus and method for detecting an object by means of a projection through the object by means of x-rays, and a contrast—and noise-optimized quantum counting detector
A detecting apparatus is disclosed for detecting an object by way of a projection through the object onto a detection plane. In at least one embodiment, the detecting apparatus has a transmitter...
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7580501 |
CT image reconstruction method, CT apparatus, and program
A CT image reconstruction method includes substituting other projection data, which has a predetermined positional relationship to projection data that is found defective during scanning, for the...
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7580499 |
Coherent-scatter computed tomography
Known reconstruction techniques from coherent scattered x-rays apply non-exact reconstruction techniques. According to the present invention, a relatively wide spectrum of wave-vector transfers q...
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7579584 |
Method for correction of an image from a series of images acquired with an x-ray detector
In a method for correction of an image in a series of images acquired with an x-ray detector; wherein the x-ray detector is composed of a number of detector elements and an acquired image is...
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7573976 |
Computed tomography system and apparatus
A computed tomography system is disclosed herein. The computed tomography system includes a rotatable gantry portion and an x-ray source mounted to the rotatable gantry portion. The computed...
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7570736 |
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...
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7570735 |
X-ray CT scanner
An X-ray CT scanner characterized in that it comprises first storage means for storing data on the response characteristic of an X-ray detector measured previously and representing the...
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7570731 |
Imaging method with back projection
The invention relates to an imaging method, especially a computerized tomography method, with which an object is penetrated by rays from different directions and measured values, which depend upon...
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7567646 |
Multiple layer detector for spectral computed tomography imaging
A radiation detector ( 100 ) includes at least first ( 202 ) and second ( 204 ) scintillators which absorb radiation and generate light at respective first ( 212 ) and second ( 214 ) wavelengths....
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7564942 |
X-ray CT apparatus
An X-ray CT apparatus permitting compatibility between the resolution orientation and the coverage orientation at low cost is to be realized. The X-ray CT apparatus uses as the X-ray detector what...
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7564941 |
Focus-detector arrangement for generating projective or tomographic phase contrast recordings with X-ray optical gratings
A focus-detector arrangement of an X-ray apparatus is disclosed for generating projective or tomographic phase contrast recordings with a phase grating. According to at least one embodiment of the...
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7564940 |
Radiation mask for two dimensional CT detector
A radiation detector for a computed tomography scanner includes a plurality of radiation detector modules. Each detector module includes an anti-scatter module, at least one radiation absorbing...
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7561661 |
Imaging arrangement and system for imaging
The invention relates to an imaging arrangement for imaging an object. The imaging arrangement comprises: an X-ray source 5 ; an X-ray detector 6 arranged to receive X-rays transmitted through...
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7561660 |
Radiation CT system and data acquisition system
A CT system including a multi-array detector that includes a plurality of detector cell, a data acquisition system that acquires data items representing doses of radiation incident on the detector...
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7561658 |
Method and x-ray computed tomography system for visualizing at least two types of cardiac tissue: healthy tissue and diseased tissue
A method and an x-ray computed tomography system are disclosed for visualizing at least two different types of cardiac tissue, such as normally perfused tissue, hypoperfused tissue and scarred...
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7561657 |
X-ray CT device
An X-ray CT device according to the present invention produces an X-ray beam of a cone shape in the direction of the body axis of a subject from an X-ray source, performs a helical scanning...
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7558362 |
Streak artifact reduction in cardiac cone beam CT reconstruction
In a diagnostic imaging system ( 10 ) two-dimensional projection data is collected in a data memory ( 30 ). The data is sorted into the data sets collected during selected cardiac phases. A...
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7555097 |
X-ray computer tomography system
There is disclosed an X-ray computer tomography system having an X-ray tube for producing X-rays, an X-ray detector including plural detector modules, a rotation mechanism by which the X-ray tube...
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7555096 |
X-ray CT apparatus and image-taking method therefor
Time-series data over the range of a projection angle is created from a sinogram. Then, time-series data made up of opposite data corresponding to the time-series data over the range of a...
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7555095 |
Method for recording and producing a topogram
A method is disclosed for recording a topogram data record for producing a topogram using an X-ray computer tomograph. To improve the image quality of the topogram, it is proposed that the topogram...
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7551712 |
CT detector with non-rectangular cells
A CT detector cell is constructed to have diagonally oriented perimeter walls. With such a construction, the resulting CT detector comprised of such detector cells has improved spatial coverage...
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7545904 |
X-ray detector methods and apparatus
A method includes simultaneously collecting both x-ray count data and energy charge data from a single cell.
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7532704 |
X-ray CT system for producing projective and tomographic phase contrast images
An X-ray CT system is disclosed for producing tomographic phase contrast and absorption images. In at least one embodiment, the system includes a gantry, including a stationary stator and a first...
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7532703 |
Energy discriminating detector with direct conversion layer and indirect conversion layer
A diagnostic imaging system includes a high frequency electromagnetic energy source that emits a beam of high frequency electromagnetic energy toward an object to be imaged. An energy...
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7531818 |
Multiple room radiation treatment system
The present invention refers to a radiation system ( 1 ) comprising an excentric gantry ( 100 ) arranged in connection with multiple treatment rooms ( 61 - 68 ) separated by radiation-shielding...
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7526070 |
X-ray CT apparatus collimator, method of manufacturing the X-ray CT apparatus collimator, and X-ray CT apparatus
The angle of each collimator plate with respect to an X ray focal point is determined by fitting the collimator plate in grooves formed in upper and lower supports each having an integral...
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7525097 |
Modular device for the detection and/or transmission of radiation with self-aligning modules
The invention relates to a device for the detection and/or transmission of radiation, particularly an X-ray detector 1 , that consists of a carrier 10 on which an array of detector modules 20 ...
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7522708 |
Focus/detector system of an X-ray apparatus for generating phase contrast recordings
A focus/detector system of an X-ray apparatus is disclosed for generating projective or tomographic phase contrast recordings. In at least one embodiment, the system includes a beam source,...
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7522699 |
Housing wall for a detector housing and detector housing
A housing wall is disclosed for a detector housing of a detector unit. Further, a detector housing is disclosed, which has the housing wall, for an X-ray computed-tomography scanner. In at least...
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7522698 |
Focus/detector system of an X-ray apparatus for generating phase contrast recordings
A focus/detector system of an X-ray apparatus is disclosed, for generating projective or tomographic phase contrast recordings. The system, in at least one embodiment, includes at least of a beam...
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7522697 |
X-ray CT apparatus
The present invention is to easily associate X-ray projection data and scanning table z-direction coordinate information with each other. Using set parameters of the operations of a scanning gantry...
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7515681 |
High resolution proton beam monitor
A method and apparatus for monitoring a scanning beam of penetrating radiation, such as a scanning proton beam used to irradiate tissue. The position of the beam is tracked in real time by...
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7515680 |
Method for correcting detector signals of a unit for reconstructing tomograms from projection data
A method is proposed for correcting detector signals of a unit for reconstructing tomograms from projection data, in particular of a computer tomography unit, of a ray detector having a...
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7515678 |
Method and system for performing CT image reconstruction with motion artifact correction
In one embodiment, a method is provided for performing computed tomography (CT) imaging. The method includes obtaining EKG gating information from an object and obtaining attenuation measurements...
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7512213 |
Multiple-view-angle cargo security inspection method and system
A multiple-view-angle cargo security inspection method for inspecting an object using a cargo security inspection system, the cargo security inspection system including a radiation source for...
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7512210 |
Hybrid energy discriminating charge integrating CT detector
An imaging system includes a gantry having a bore therethrough designed to receive a patient being translated through the bore an x-ray source disposed in the gantry and configured to emit x-rays...
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7512209 |
Thermal stabilization methods and apparatus
A method includes thermally stabilizing a Computed Tomography (CT) detector module.
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7507968 |
Systems and methods for correcting a positron emission tomography emission image
A method for correcting a positron emission tomography (PET) emission image is described. The method includes obtaining a PET emission sinogram of an object, obtaining a computed tomography (CT)...
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7505554 |
Apparatus and methods of an X-ray and tomosynthesis and dual spectra machine
An X-ray device, array and method for performing digital X-ray imaging. An X-ray device has an X-ray source that is disposed on a substantially opposite side of an object to be analyzed from a...
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