Matches 1 - 50 out of 231 1 2 3 4 5 >


Match Document Document Title
US20150164454 METHOD AND COMPUTING UNIT FOR MEASURING AND DISPLAYING THE BONE DENSITY OF A PATIENT  
A method and a computing unit are disclosed for measuring and displaying the bone density of a patient. In at least one embodiment, separate projection data are used from a CT scan with at least...
US20130022164 DENTAL AND ORTHOPEDIC DENSITOMETRY MODELING SYSTEM AND METHOD  
A dental and orthopedic densitometry modeling system includes a controller with a microprocessor and a memory device connected to the microprocessor. An input device is also connected to the...
US20120134462 DENTAL AND ORTHOPEDIC DENSITOMETRY MODELING SYSTEM AND METHOD  
A dental and orthopedic densitometry modeling system includes a controller with a microprocessor and a memory device connected to the microprocessor. An input device is also connected to the...
US20130272491 NORMALIZED METRICS FOR VISCERAL ADIPOSE TISSUE MASS AND VOLUME ESTIMATION  
A method and system for determining normalized metrics for visceral adipose tissue (VAT) mass and volume estimation. The normalized metrics including a VAT average cross-section determined by...
US20100303196 VOLTAGE 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...
US20140307846 Method of Estimating Chordal Holdup Values of Gas, Oil and Water for Tomographic Imaging of a Three-Phase Flow Through a Volume  
A method of estimating chordal holdup values of gas, oil, and water (εG, εO, εW) for tomographic imaging of a three-phase flow through a volume, including: providing an X-ray source for...
US20140376687 SYSTEMS FOR CHARACTERIZING ATHEROSCLEROTIC PLAQUE AND METHODS OF USING SAME  
The present technology relates generally to systems for characterizing atherosclerotic plaque, such as a spectral CT system, and methods of using same.
US20150223766 DETECTOR ARRAY COMPRISING ENERGY INTEGRATING AND PHOTON COUNTING CELLS  
Among other things, one or more techniques and/or systems are described for measuring the attenuation of a line integral through an object via a photon counting cell (302) and via an energy...
US20140233693 APPARATUS AND METHOD FOR COUNT LOSS CALIBRATION OF PHOTON-COUNTING DETECTORS IN SPECTRAL COMPUTED TOMOGRAPHY IMAGING  
A method for photon count-loss calibration in a computed-tomography (CT) scanner, including capturing incident X-ray photons via a plurality of energy-discriminating detectors, determining photon...
US20060251209 Energy sensitive x-ray system and method for material discrimination and object classification  
A system and method for classifying whether an object within an enclosed article is a threat. The system includes an acquisition subsystem, a reconstruction subsystem, an energy discrimination...
US20150146844 METHOD AND SYSTEM FOR SPECTRAL COMPUTED TOMOGRAPHY (CT) WITH INNER RING GEOMETRY  
Photon counting detectors are sparsely placed at predetermined positions in the fourth-generation geometry around an object to be scanned in spectral Computer Tomography (CT). An X-ray emitting...
US20110311122 MEASURING INTRAMUSCULAR FAT  
Dual-energy absorptiometry is used to estimate intramuscular adipose tissue metrics and display results, preferably as related to normative data. The process involves deriving x-ray measurements...
US20140185741 Multi-energy CT imaging system and Imaging Method  
The present invention relates to a Computed Tomography (CT) imaging system, in particular to a multi-energy CT imaging system and imaging method.
US20140086382 COMBINATION OF CONTRAST MEDIUM AND MAMMOGRAPHY CT SYSTEM WITH A PRESPECIFIED ENERGY RANGE AND METHOD FOR GENERATING TOMOGRAPHIC MAMMOGRAPHY CT IMAGES BY THIS COMBINATION  
A mammography CT system is disclosed which includes an X-ray generator; and a first radiator-detector system. A contrast medium, including an opacifying element including an absorption peak in a...
US20120014499 CT System  
A CT system for scanning a patient is disclosed. In at least one embodiment, the system includes a tube/detector system, which can be set by a control device in respect of tube voltage and/or dose...
US20150110239 METHOD FOR ACQUIRING MORPHOLOGY OF A BREAST  
An imaging method performed by a device comprising an X-ray emitting source, a receiver positioned facing the source, and a support on which a subject or organ to be imaged is positioned, the...
US20140233694 APPARATUS AND METHOD FOR ANGULAR RESPONSE CALIBRATION OF PHOTON-COUNTING DETECTORS IN SPARSE SPECTRAL COMPUTED TOMOGRAPHY IMAGING  
A method for detector angular response calibration in computed-tomography (CT) comprising capturing incident X-ray photons, emitted from an X-ray source, via a plurality of energy-discriminating...
US20090147910 SYSTEM AND METHOD FOR ENERGY SENSITIVE COMPUTED TOMOGRAPHY  
An energy-sensitive computed tomography system is provided. The energy-sensitive computed tomography system includes an X-ray source configured to emit an X-ray beam resulting from electrons...
US20100158191 Integrated Carry-On Baggage Cart and Passenger Screening Station  
The present invention is directed towards apparatuses and methods for securing a location. Particularly, the present invention is directed towards methods, apparatuses, and integrated systems for...
US20110069808 X-RAY MAMMOGRAPHY WITH TOMOSYNTHESIS  
A method and system for producing tomosynthetic images of a patient's breast. An x-ray source that delivers x-rays through a breast immobilized and compressed between a compression paddle and a...
US20150257722 ENERGY-WEIGHTED SINGLE-BINNING FOR A PHOTON-COUNTING DETECTOR  
An apparatus is provided that includes a digital processing circuit to obtain a digital signal corresponding to an output signal of a photon-counting detector; determine, from the obtained digital...
US20130301794 Method And System For Multi-Energy Computer Tomographic Cuttings Analysis  
A method and a system are provided to prepare a plurality of cuttings or other rock fragments or other porous media, such as cuttings from a drilling interval or multiple intervals, for computer...
US20090161814 METHOD FOR CALIBRATING A DUAL -SPECTRAL COMPUTED TOMOGRAPHY (CT) SYSTEM  
A method for calibrating and reconstructing material density images in a dual-spectral computed tomography (CT) system 100 is disclosed. An X-ray source in the CT system 100 emits a first X-ray...
US20150063527 CONVENTIONAL IMAGING WITH AN IMAGING SYSTEM HAVING PHOTON COUNTING DETECTORS  
An imaging system (600) includes a radiation source (608) that emits polychromatic radiation that traverses an examination region and a detector array (610) located opposite the radiation source,...
US20130028371 Method For Estimating Effective Atomic Number And Bulk Density Of Rock Samples Using Dual Energy X-Ray Computed Tomographic Imaging  
A method for estimating effective atomic number and bulk density of objects, such as rock samples or well cores, using X-ray computed tomographic imaging techniques is provided. The method...
US20140301528 COLOR X-RAY HISTOLOGY FOR MULTI-STAINED BIOLOGIC SAMPLE  
Systems and methods are provided for staining tissue with multiple biologically specific heavy metal stains and then performing X-ray imaging, either in projection or tomography modes, using...
US20140105352 Dual-Energy Cone-Beam CT Scanning  
A CT scanning apparatus includes a control apparatus arranged to cause a first rotation of a gantry and trigger an x-ray source to emit x-radiation at a first x-ray energy when an angular encoder...
US20120087463 PHOTON COUNTING AND ENERGY DISCRIMINATING DETECTOR THRESHOLD CALIBRATION  
An imaging system includes an x-ray source, a detector that receives x-rays emitted from the x-ray source, a DAS configured to count photon hits in the detector that occur at photon energies above...
US20090168949 System and method for inspecting containers for target material  
A method for automatically inspecting a container for a target material using a computed tomography (CT) scanning system includes performing an initial radiographic scan of the container. Based at...
US20090268862 ENERGY DISTRIBUTION RECONSTRUCTION IN CT  
The reconstruction of the energy distribution at a detector with a detector element that consists of many small pixels, which count the number of photons above certain thresholds, is performed...
US20120008735 Imaging Methods for Image-Guided Radiation Treatment  
Systems, methods, and related computer program products for medical imaging and image-guided radiation treatment (IGRT) are described. In one embodiment, an IGRT system selectively integrates...
US20090022264 STATIONARY X-RAY DIGITAL BREAST TOMOSYNTHESIS SYSTEMS AND RELATED METHODS  
Stationary x-ray digital breast tomosynthesis systems and related methods are disclosed. According to one aspect, the subject matter described herein can include an x-ray tomosynthesis system...
US20090262997 METHOD, APPARATUS, AND COMPUTER-READABLE MEDIUM FOR PRE-RECONSTRUCTION DECOMPOSITION AND CALIBRATION IN DUAL ENERGY COMPUTED TOMOGRAPHY  
A method of obtaining a computed tomography image of an object includes determining linear terms and non-linear beam hardening terms in a pair of line integral equations for dual-energy projection...
US20140328450 SYSTEM AND METHOD FOR REDUCING HIGH DENSITY ARTIFACTS IN COMPUTED TOMOGRAPHY IMAGING  
An imaging system includes a rotatable gantry for receiving an object to be scanned, a generator configured to energize an x-ray source to generate x-rays, a detector positioned to receive the...
US20090207966 IMAGE ACQUISITION FOR DUAL ENERGY IMAGING  
Acquisition techniques for dual energy (DE) chest imaging system. Technique factors include the added x-ray filtration, kVp pair, and the allocation of dose between low- and high-energy...
US20080260092 X-RAY TOMOGRAPHIC IMAGING APPARATUS  
For the purpose of providing an X-ray tomographic imaging apparatus for displaying a dual-energy image to facilitate diagnosis by an operator, an X-ray tomographic imaging apparatus (10)...
US20090310736 ENERGY SPECTRUM RECONSTRUCTION  
A computed tomography system includes an x-ray source (108) that rotates about and emits radiation through an imaging region (116). At least one finite energy resolution detector (112) detects the...
US20100067647 DOSE-SPARING TOMOGRAPHIC IMAGING  
A system includes emission of a first plurality of radiation beams from respective ones of a first plurality of locations along a first arc, acquisition of a first plurality of projection images...
US20080137803 DIAGNOSTIC IMAGING TWO NON K-EDGE BASIS MATERIALS PLUS N K-EDGE CONTRAST AGENTS  
A diagnostic imaging system in an example comprises a high frequency electromagnetic energy source, a detector, a data acquisition system (DAS), and a computer. The high frequency electromagnetic...
US20100135557 SELECTION METHOD FOR TWO CONTRAST MEDIA FOR USE IN A DUAL-ENERGY CT EXAMINATION, CONTRAST MEDIA COMBINATION AND GENERATION OF CT IMAGES USING A CONTRAST MEDIA COMBINATION AND DIFFERENT ENERGY SPECTRA  
A method is disclosed for selecting two contrast agents to be used in a dual energy CT examination of a patient. In at least one embodiment, the method includes determining the gradient of a...
US20080095303 Apparatus For The Evaluation Of Rotational X-Ray Projections  
The invention relates to a method and an examination apparatus for the evaluation of X-ray projections (31-33, 41-43) that were generated with a rotational X-ray device (10) from different...
US20090304141 X-Ray CT Apparatus  
The photon counting type detector 122 includes a drift electrode 122a, an MSGC 122b provided at a prescribed interval and a drift region 122c formed by sealing gas between the drift electrode 122a...
US20150219774 METHOD AND DEVICE FOR DETERMINING THE X-RAY RADIATION ATTENUATION CAUSED BY THE OBJECT TO BE EXAMINED  
An embodiment of the invention relates to the use of the spectral composition of X-ray radiation in addition to the intensity thereof in order to determine the attenuation caused by an object....
US20100061504 CT IMAGING SYSTEM  
The invention relates to a CT imaging system for determining the flow of a substance within an object, wherein the CT imaging system comprises a polychromatic X-ray source and an energy-resolving...
US20100226474 X RAY CT SYSTEM  
The dual energy X-ray CT apparatus automatically optimizes a map for separation to achieve a high degree of separation accuracy and a reduction of dose. An X-ray attenuation coefficient acquired...
US20090080597 SYSTEM AND METHOD FOR PERFORMING MATERIAL DECOMPOSITION USING AN OVERDETERMINED SYSTEM OF EQUATIONS  
A system and method of a diagnostic imaging system includes an x-ray source that emits a beam of x-rays toward an object to be imaged, a detector that receives x-rays emitted by the x-ray source...
US20140211910 CORRECTION OF PROJECTION DATA IN RADIATION SYSTEM  
Among other things, one or more techniques and/or systems for correcting projection data representative of an object under examination to account for drift in a radiation system are provided....
US20100135453 Multi-material decomposition using dual energy computed tomography  
A method for obtaining multi-material decomposition images is disclosed, the method comprising the steps of: acquiring an image pair from a dual energy computed tomography scan of an imaged...
US20150168569 METHOD FOR DETECTION OF X-RAY RADIATION, X-RAY RADIATION DETECTOR AND CT SYSTEM  
A method is disclosed for detecting incident X-ray radiation by way of a direct-converting X-ray radiation detector. A semi-conductor material used for detection purposes is irradiated with...
US20150198725 PHOTON-COUNTING TYPE X-RAY COMPUTED TOMOGRAPHY APPARATUS AND METHOD  
A photon-counting type X-ray computed tomography apparatus that comprises a high-voltage generator to generate a voltage signal, an X-ray tube to emit X-rays when the X-ray tube receives the...

Matches 1 - 50 out of 231 1 2 3 4 5 >