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7616796 |
System and method for sensor device manufacturer oriented calibration
A system and method for providing image calibration data for calibrating a digital medical image are disclosed. The system comprises a computer-based platform hosting a medical imaging software...
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7604405 |
Integrated quality assurance for an image guided radiation treatment delivery system
A method and apparatus for quality assurance of an image guided radiation treatment delivery system. A quality assurance (“QA”) marker is positioned at a preset position under guidance of an...
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7600915 |
Imager based object positioner system and method
An apparatus and a method for guiding the placement of an object to a desired location based on an image generated by an image intensifier where the apparatus includes a first coupling mechanism...
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7599472 |
Method, x-ray tube and imaging system for adjusting the position of the x-ray tube focus
In order to reduce the influence of magnetic interference fields on the position of an x-ray focus of an x-ray tube, the deviation of a current focus position from a target focus position or of a...
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7597476 |
Apparatus and method for determining air-kerma rate
An apparatus for determining the air-kerma rate of an x-ray device comprises a data obtaining component for obtaining data of the x-ray device, a calculation component for calculating the air-kerma...
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7594753 |
Phantom insert for quality assurance
An apparatus for performing quality assurance on a radiation treatment delivery system includes a housing, a target region, and alignment protrusions. The housing is penetrable by a radiation beam...
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7593507 |
Radiation image capturing system and method of setting minimum transmission radio-field intensity in such radiation image capturing system
When a cassette transceiver starts to transmit radiation image information to a console transceiver, the cassette transceiver transmits a test radio wave, and the console transceiver calculates a...
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7580504 |
Calibration devices and methods of use thereof
The present invention relates to calibration devices and to methods of using these devices.
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7577233 |
Rotating X-ray apparatus for inspection of deployed intravascular devices
The rotating X-ray apparatus disclosed has a pair of driven rotatable rings with an X-ray source mounted for impinging a beam that passes through a specimen to an X-ray receptor. A reversible...
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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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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...
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7568837 |
Method for activating an x-ray image recording system and an x-ray image recording system
To make optimum use of an x-ray image recording system with an x-ray C-arm, which has an x-ray radiation source and an x-ray detector and can be pivoted about any axis, 2D axis lines are plotted in...
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7561663 |
X-ray detection device for foreign matter
An X-ray detection device for detecting whether or not foreign matter is mixed in on the basis of the transmission amount of X-rays that have penetrated an examination subject article by applying...
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7560682 |
Device and method for monitoring solid-state detectors
In a device and associated method for monitoring solid-state detectors, image segments of a test image (such as, for example, a dark current image) from solid-state detectors are evaluated and...
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7559694 |
Method for acquisition geometry of an imaging system
A method for determining acquisition geometry of an imaging system from a set of calibration matrices for an arbitrary position of the system, a projection matrix makes a point in a 2D image...
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7558412 |
System and method for compensation of scintillator hysteresis in x-ray detectors
A method and system for detecting the potential of an x-ray imaging system to create images with scintillator hysteresis artifacts includes examining an x-ray image to measure two signal levels for...
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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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7553081 |
X-ray system and calibration method therefor
In a method for calibration of an image-generating x-ray system with a digital x-ray receiver and an x-ray system operating with this calibration method, a number of first offset-corrected bright...
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7551710 |
X-ray CT apparatus and X-ray CT imaging method
An X-ray CT apparatus includes a unit for transmitting an X-ray at not less than two different heights of a measurement object and obtaining a given CT image. Alternatively, the X-ray CT apparatus...
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7548604 |
Method and apparatus for reduction of metal artifacts in CT imaging
A method and apparatus for reducing artifacts in image data generated by a computed tomography system is provided. The artifacts are due to the presence of a high density object in a subject of...
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7545914 |
Radiation image capturing system
A radiation image capturing system detects the position of a radiation detecting cassette disposed below a patient and the position of a radiation source for emitting a radiation, based on the...
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7545913 |
Integrated digital sensor and x-ray tube used with a pass-through
A method of operating a digital x-ray system having a plurality of information processors, each information processor associated with a corresponding one of a plurality of operatories. The method...
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7545912 |
X-ray unit
An X-ray unit according to the invention has a first arrangement ( 2 ) that is intended for the contactless and X-ray free measurement of first data of an object ( 1 ). A control unit ( 3 )...
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7532942 |
Method and apparatus for generating a technologist quality assurance scorecard
The present invention provides a quality assurance system and method that generates a quality assurance (QA) scorecard for technologists that use digital devices in a radiological-based medical...
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7531810 |
Integrated half-beam profile measurement and polar profile for circular radiation field symmetry assessment
A method for routine monitoring and quality assurance of field asymmetry of high energy circular radiation beam producing equipment. The quality assurance process of field symmetry for devices such...
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7529346 |
Method for stabilizing the size of a focal spot of an X-ray tube, and X-ray tube comprising such a method
In a method for stabilizing the size of a focal spot of an X-ray tube and contrast modulation function of a X-ray tube, the tube has a cathode comprising a concentrator and a heating filament. It...
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7519156 |
Method and apparatus for hot swapping portable detectors in x-ray systems
Methods and apparatus are provided for hot swapping a portable detector to an imaging system. A portable detector having a unique identifier and calibration data is detected by an imaging system....
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7519146 |
Method of obtaining radioactive energy curve for reinforced concrete and apparatus therefor
The present invention uses a penetrative radiation to form images of a reinforced concrete which has a steel bar. By recording a relationship between radioactive energies and thicknesses of the...
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7518102 |
Calibration method and apparatus for pixilated solid state detector
A system calibrates a solid state detector ( 20 ) for a radiation imaging device ( 10 ) in a single acquisition. A calibration phantom ( 40 ) emits radiation concurrently at at least first and...
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7515689 |
X-ray measuring instrument
An X-ray measuring instrument in which an object under examination is irradiated with X-rays, measurement data on the object is detected, a filter for adjusting the amount of transmitted X-rays is...
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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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7510325 |
Phantom and phantom assembly
A phantom assembly includes a plurality of cylindrical shaped phantoms connectable to each other and/or a plurality of column-shaped phantoms connectable to each other with fitting portions. An...
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7507026 |
Systems, methods and devices for x-ray device focal spot control
Systems, methods and devices for implementing automatic control of focal spot Z axis positioning are disclosed for use with an x-ray device having an x-ray tube positioned within a housing and...
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7503694 |
Dental image quality and dose analyzer
A device and method for evaluating the performance of X-ray machines used to produce radiographic images is described. An analyzer including an X-ray dosimeter and an imaging device is sent to the...
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7497621 |
System and method for integration of a calibration target into a C-Arm
Certain embodiments of the present invention provide a method and system for improved calibration of an image acquisition device. Certain embodiments of the system include an image acquisition...
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7496172 |
Method for examining defect in steel bar and apparatus therefor
A penetrating radiation is used to examine a steel bar in a reinforced concrete coordinated with a comparing object. The position and size of the comparing object are known in advance. At first,...
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7496171 |
Method for estimating the radiation scattered in a two-dimensional detector
The radiation scattered in a two-dimensional detector ( 2 ) by a radiation is estimated by subjecting the detector ( 2 ) to at least two irradiations by inserting an array ( 3 ) of separated...
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7494278 |
Method for correcting non-reproducible geometric errors occurring during operation of a C-arm device
In a method for correcting non-reproducible geometric errors occurring during the operation of an x-ray C-arm device, having a C-arm carrying an x-ray source, during orbital displacement of the...
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7494277 |
Method and apparatus for medical X-radiography
The invention relates to a method for eliminating error elements caused by movements of an imaged object in X-radiography, said method comprising performing X-radiography on an imaged object for...
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7494276 |
Method and system for the planning of imaging parameters
A method and an assistance system ( 20 ) plan geometrical imaging parameters like the active dose-measuring-field ( 29 ) and/or the opening of a collimator ( 12 ) of an X-ray device ( 10 ). An...
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7490988 |
Systems and methods for patient specific pixel spacing calibration for mammography X-ray
Certain embodiments of the present invention provide methods and systems for calibrating a pixel spacing attribute value for X-ray mammography imaging based on a patient-specific breast thickness...
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7490987 |
Method and system for optimizing radiation exposure for medical imaging equipment
A system and method are provided for optimizing the amount of radiation exposure to a patient. The system and method comprise inputting a set of parameters based on characteristics of the patient,...
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7488109 |
Osteoporosis screening using radiographic absorptiometry of the mandible
A dental radiographic absorptiometric device and method is provided that quantitatively measures the amount of bone of a patient in any dentist's office. Absorptiometric information simultaneously...
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7488107 |
Method and apparatus to detect and correct alignment errors in x-ray systems used to generate 3D volumetric images
Certain embodiments of the present invention provide an improved system and method for detecting an alignment error in an imaging system. The method includes projecting a calibration pattern from a...
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7484889 |
X-ray appliance with a rotating flat detector
An X-ray appliance is disclosed including an X-ray emitter, arranged such that it cannot rotate, and a flat detector mounted such that it can rotate. The appliance further includes an upgraded...
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7482601 |
Radiation sensitive film including a measuring scale
An article of manufacture comprising a radiation sensitive material, and a measuring scale that is part of the radiation sensitive material. A method of measuring at least one parameter relating to...
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7481579 |
Overlay metrology using X-rays
A method for inspection includes directing a beam of X-rays to impinge upon an area of a sample containing first and second features formed respectively in first and second thin film layers, which...
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7476027 |
Radiation imaging system and driving method thereof
When a gain correction is performed for the radiographed object image, the acquisition of the object image having a high grade quality and no artifact is realized. For that purpose, an image...
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7476026 |
Method and apparatus for calibrating X-ray detectors in a CT-imaging system
A method of adjusting values for sensitivities of X-ray detectors comprised in a CT-imager that generate signals responsive to X-rays from an X-ray source in the imager, comprising: acquiring...
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