Matches 1 - 50 out of 100 1 2 >


Match Document Document Title
8183532 Cardiac SPECT system with trajectory optimization  
In a disclosed imaging method, the instantaneous speed or data acquisition dwell times of a detector head (14, 16) is optimized as a function of position along a path (P) of the detector head...
8180018 Tomographic image capturing apparatus and tomographic image capturing method  
A tomographic image capturing apparatus includes a radiation source for applying radiation to a subject at a plurality of different angles with respect to the subject, a radiation detector for...
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...
7986762 Method for recording an examination object  
A method is provided for recording an examination object using an x-ray recording system having an x-ray source and an x-ray detector rotatable about a common axis of rotation. X-ray detector is...
7983385 Fly-by scanning  
A computed tomography system (100) includes an x-ray source (112) that rotates about an examination region (108) and translates along a longitudinal axis (120). The x-ray source (112) remains at a...
7945012 Computed tomography image acquisition  
A computed tomography acquisition geometry provides an increased field of view (218). A radiation source (202, 702) such as an x-ray source and a radiation detector (204, 704) are displaced from...
7835488 Swept annode CT scanner  
A computed tomography method includes rotating an electron beam along an anode (104) disposed about an examination region (112) for a plurality of sampling intervals in which x-ray projections are...
7825383 Mobile camera for organ targeted imaging  
A mobile detector system for use in the detection of radiation photons. The detector system includes an exterior casing, having an internal area. The internal area has an interior periphery and an...
7822171 Cone beam computed tomography with multiple partial scanning trajectories  
A computer tomography apparatus (100) for examination of an object of interest (107) comprising an electromagnetic radiation source (104) adapted to emit electromagnetic radiation to an object of...
7801588 X-ray diagnostic imaging system and X-ray diagnostic imaging method  
An X-ray diagnostic imaging method, comprises the steps of radiographing the predetermined area so that an image data of a first contrast image is acquired when a timing of an acquired start of the...
7796723 Method for providing 3D image data and system for taking x-ray images  
In a known type of tomosynthesis x-ray source and x-ray detector are linearly moved and x-rays images are taken for a large number of positions, the images being reconstructed to give a 3D image...
7787670 Radiation imaging device for correcting body movement, image processing method, and computer program  
To perform as high-accuracy as possible a correction for a body movement for reducing an artifact occurring in a case of creating a tomographic image from an X-ray projected image, the coordinates...
7764763 X-ray CT system, image reconstruction method for the same, and image reconstruction program  
It is an object of the present invention to eliminate windmill artifacts that inevitably occurs when a helical scan is performed with an X-ray CT system. To this end, the present invention is...
7671342 Multi-layer detector and method for imaging  
X-ray portal imaging detectors have multiple layers, such as multiple layers of phosphor screens and/or detectors. Some x-rays that pass through one layer are detected or converted into light...
7672423 Short scan cardiac CT on a quasi axial trajectory  
A short scan uses only data from about 180° gantry rotation instead of a full 360° turn. In the provided short scan cardiac CT, a periodical axial focal spot movement is performed during gantry r...
7653176 Inspection system with material identification  
An angular analysis system that can be controlled to receive radiation at a defined angle from a defined focus region. The angular analysis system is used for level 2 inspection in an explosive...
7623905 Method for production of computer-tomographic scans during an intervention  
A method is disclosed for production of computer-tomographic scans via a CT system of a patient during an intervention with an instrument. An X-ray tube is moved on a rotation plane around the...
7505553 Method for taking computed tomography scans with the aid of a CT unit, and a CT unit  
A method is for taking computed tomography scans with the aid of a CT unit and to a CT unit. An X-ray tube is moved in a circle or spiral about a z-axis in combination with a detector situated...
7493001 Waveguide-based detector module for x-radiation or gamma radiation  
A detector module, in at least one embodiment, is disclosed for x-radiation or gamma radiation that includes one or more optical waveguide sections that are arranged next to one another in order to...
7335888 Imaging apparatus to acquire tomography projections with improved orbit  
The present invention relates to an apparatus for nuclear medicine imaging in which the imaging platform is attached directly to the detectors for nuclear imaging to allow for minimal constant...
7305263 Magnetic navigation system and magnet system therefor  
A magnetic navigation system for orienting a magnetically responsive medical device in a selected direction within an operating region in a subject's body. The system includes a support for...
7260175 CT image producing method and X-ray CT apparatus  
A method for producing a CT image by applying Z-filtering to axial scan data collected using a multi-row detector, wherein second axial scan data is collected at a second position Z2 to which an...
7139363 Oblique-view cone-beam CT system  
An oblique-view cone-beam CT system comprising an X-ray source for irradiating an object with X-ray from an oblique direction with respect to a rotational axis of said object. A detector is...
7110487 X-ray measuring apparatus  
An x-ray measuring apparatus comprises an x-ray source, an x-ray detector, a rotating device, and a processor. The x-ray source generates x-rays to be emitted to a subject. The x-ray detector...
7064336 Adaptable radiation monitoring system and method  
A portable radioactive-material detection system capable of detecting radioactive sources moving at high speeds. The system has at least one radiation detector capable of detecting gamma-radiation...
6956925 Methods and systems for multi-modality imaging  
A method of examining a patient is provided. The method includes imaging a patient utilizing a computed tomography imaging modality, the patient between the pencil-beam x-ray source and the x-ray...
6700949 Retractable collimator apparatus for a CT-PET system  
An apparatus for use with a combined CT-PET system wherein a CT source and detector are mounted to a front end of a CT support and the support forms a parking space about a translation axis, a PET...
6687393 Efficient methods and apparatus for resampling three dimensional datasets  
In one form, the present invention is a method for rapidly resampling a three-dimensional volume of data to permit efficient interactive viewing and visualization of the data is provided in which a...
6496557 Two-dimensional slot x-ray bone densitometry, radiography and tomography  
An x-ray system using a slot-shaped detector having n rows and m columns of pixels, where n<
6429433 Continuous rotation sampling scheme for transmission radiation corrected gamma cameras  
A continuous rotation sampling scheme for use with a nuclear medicine gamma camera facilitates collection of transmission and emission data leading to a reduced overall scan time. The gantry (16)...
6422749 Imaging system with X-ray beam angulation compensation  
In an X-ray imaging system, an arrangement is provided for readily aligning the system detector with the X-ray beam field, i.e., the projection of the X-ray beam into the plane of the detector. The...
6385279 Methods and apparatus for positioning a CT imaging x-ray beam  
In one embodiment, the present invention is a method for positioning an x-ray beam on a multi-slice detector array of an imaging system in which the detector array has rows of detector elements and...
6322248 X-ray impinging position alignment method and x-ray tomographic imaging method and apparatus  
In order to make an X-ray impinging position coincide with a fixed position from the beginning of a scan, in scanning a subject to be examined by an X-ray emitting/detecting apparatus, an X-ray...
6272199 Computer tomography apparatus  
A CT apparatus with alternating focus, in which the detector elements deliver output data when picking up individual projections corresponding to the beam attenuation of the X-rays proceeding to...
6233305 Method, apparatus and their use in tomographic imaging  
A method of producing complex motion or spiral tomography images in tomographic imaging, comprising the steps of positioning an object to be imaged in a fixed position, arranging a radiation source...
6196715 X-ray diagnostic system preferable to two dimensional x-ray detection  
An X-ray tomosynthesis system as an X-ray diagnostic system is provided. The system comprises an X-ray generator irradiating an X-ray toward a subject, and a planar-type X-ray detector detecting...
6185275 Systems and methods for correcting focal spot thermal drift  
The present invention, in one form, is a system for correcting thermal drift in an imaging system. More specifically, a correction algorithm determines an adjusted focal spot position based upon a...
6005908 X-ray computed tomography apparatus with radiation detector which reduces image unsharpness  
An X-ray computed tomography apparatus has a radiation detector composed of X-ray converters so that the scattering of light in a scintillator or the inductive disturbance in a directly converting...
RE36099 X-ray tomography apparatus  
Accordingly, the present invention provides an x-ray tomography apparatus having a patient table, x-ray tomography components located around the patient table and in an imaginary plane which...
5841829 Optimal channel filter for CT system with wobbling focal spot  
An improved data acquisition system filter, optimized for the time domain and for use in a computed tomography scanner of the type using x-ray focal spot wobble, includes a filter time response...
5740224 Cone beam synthetic arrays in three-dimensional computerized tomography  
The method of the present invention combines an ensemble of truncated partial cone beam projections to synthesize a complete virtual projection. The individual partial projections are obtained with...
5706326 Systems and methods of determining focal spot x-axis position from projection data  
The present invention, in one form, is a method of determining focal spot position in a computed tomography system using conventional scan data. The computed tomography system includes, in one...
5680430 Method and apparatus for controlling and optimizing output of an x-ray source  
A method for controlling output of an x-ray source to optimize x-ray energy arriving at an associated x-ray receptor during linear tomographic examination. The method comprises the steps of...
5648996 Tangential computerized tomography scanner  
A tangential computer tomography scanner for scanning an object having a cross-section. A radiation source emits a beam of penetrating energy. The beam penetrates an object located within the beam...
5475726 Process for the reconstruction of three-dimensional images of an area of interest of an object comprising the combination of measurements over the entire object with measurements of an area of interest of said object, and appropriate installation  
Process and installation making it possible to reconstitute precise images of an area of interest (2) of an object (1) by reducing the errors produced by the contribution of the compliment of the...
5452337 Radiation diagnostic system  
A rotational drive sensor 31 which allows a radiation source 10 and a twomensional sensor 20 which are caused to be in one body to turn round a subject 50. An X-ray vessel 13 irradiates X-rays to...
5265142 Image reconstruction technique for a computer tomography system  
A computed tomography apparatus includes a gantry rotatable about an object being imaged, an X-ray source mounted on said gantry in opposing relationship to an array of X-ray detectors. An X-ray...
5228069 Dual slice scanner  
A CT scanner using a rotate-rotate mode wherein the detector is designed to simultaneously detect X-rays that have traversed multiple-planar sections in a patient being scanned.
5191600 X-ray computer tomography system with split detector ring  
An X-ray computer tomography system with a ring anode and substantially without mechanically moving parts for the production of fast image slices from the inside of an object is improved in such a...
5073910 Square wave cone beam scanning trajectory for data completeness in three-dimensional computerized tomography  
A configuration for three-dimensional cone beam computerized tomography imaging which allows a complete data set to be acquired in a practical manner, while providing fast data acquisition to...
Matches 1 - 50 out of 100 1 2 >