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7620444 |
Systems and methods for improving usability of images for medical applications
A method for retrospective internal gating is provided. The method includes scanning a patient to obtain projection data, generating images from the projection data, generating a signal...
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7616729 |
Method for producing X-ray computer tomography images from limited data of an image object
The invention relates to a method for producing computer tomography images from limited data of a region of interest of an image object which can be subject to changes, comprising the steps of
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7613275 |
Method and apparatus for reducing cone beam artifacts using spatially varying weighting functions
A method for combining images acquired using helical half-scan imaging comprises identifying an image plane within an overlap region comprising data from first and second view streams...
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7613273 |
Apparatus with a moving system and a stationary system
An apparatus includes a first, stationary system, in particular a stator, and a second system which is provided for moving relative to the first system, in particular an armature, a first and...
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7609807 |
CT-Guided system and method for analyzing regions of interest for contraband detection
A system and method for ascertaining the identity of an object within an enclosed article. The system includes an acquisition subsystem with a computed tomography machine and an alternate modality...
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7609802 |
Method and system for reconstructing image volumes from helical scan acquisitions
A method, computed tomography (CT) system and computer-readable medium for reconstructing an image volume of an object scanned in helical mode. An embodiment of the method includes determining...
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7606348 |
Tomographic imaging systems and methods
A method for operating an inspection system is disclosed in which an item under inspection may be moved between radiation sources and detectors illuminated by the sources. The radiation sources may...
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7606345 |
X-ray CT apparatus
An X-ray CT apparatus enables decreasing the degradation of image quality and reducing futile exposure to X-ray in a helical shuttle scan. The X-ray CT apparatus comprises: a gantry rotating device...
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7603165 |
Method for acquiring PET and CT images
A combined PET and X-Ray CT tomograph for acquiring CT and PET images sequentially in a single device, overcoming alignment problems due to internal organ movement, variations in scanner bed...
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7603162 |
Imaging tomography apparatus with fluid-containing chambers forming out-of-balance compensating weights for a rotating part
An imaging tomography apparatus, in particular an x-ray tomography apparatus or an ultrasound tomography apparatus, has a stationary unit with a sensor for measurement of an out-of-balance...
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7602879 |
Method for increasing the resolution of a CT image during image reconstruction
The resolution of an image produced by a CT imaging system is increased by employing an image reconstruction method that takes advantage of the redundant attenuation measurements made during a...
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7599540 |
Motion compensated reconstruction technique
The long scan time in PET imaging may lead to a significant loss of resolution, due to patient or organ motion. According to the present invention, the distortion or motion may be compensated by...
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7599534 |
CAD (computer-aided decision) support systems and methods
CAD (computer-aided decision) support systems, methods and tools are provided for automated decision support for screening, evaluating, and/or diagnosing medial conditions. For example, CAD support...
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7599467 |
Device for contact-free transmission of signals and measured data in a computed tomography apparatus
An x-ray computed tomography apparatus has a stationary unit and a rotatable unit, carrying an x-ray source and a radiation detector. The rotatable unit rotates around an axis relative to the...
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7599466 |
Operating method for X-ray equipment
A control device pivots an X-ray arrangement repeatedly between two final angular positions about a pivot axis. Projections of an object arranged in the region of the pivot axis and moving...
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7599465 |
Detection of thrombi in CT using energy discrimination
An imaging scanner includes a radiation source, a radiation detector, and a computer programmed to decompose CT data acquired by the radiation detector into a set of pixels, each pixel having at...
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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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7596252 |
Method for post-editing a medical image data set
A method is for post-editing a first image data set using a post-editing software program, the image having initially been obtained using an image producing medical examination device, and a second...
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7596204 |
Method and device for the iterative reconstruction of cardiac images
The invention relates to a method and a device for the iterative reconstruction of cross-sectional images of the heart ( 7 ) of a patient based on projections (P 1 , . . . P 5 ) from different...
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7596203 |
Computer tomography method
The invention relates to a computer tomography method with a circular relative movement between the beam source and an iterative reconstruction method suitable therefor. The reconstruction method...
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7596202 |
Imaging method with filtered back projection
The invention relates to an imaging method, in which a projection data record of an examination area to be reconstructed is generated by acquiring projections from different projection directions,...
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7593761 |
Method and apparatus of determining and displaying an artifact index
An apparatus and process for determining and displaying an artifact index (AI) to a system operator are provided. The AI is determined by acquiring and processing imaging data of a phantom. The AI...
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7593559 |
Method and system of coregistrating optical coherence tomography (OCT) with other clinical tests
A method/system preserves annotations of different pathological conditions or changes that are recognized on cross-sections within a three dimensional volume of a patient's eye so that the...
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7593503 |
Self-shielded CT scanner
A CT scanner includes a pair of shields to protect an operator from x-rays from the CT scanner. The CT scanner has a gantry that provides structural support and housing for the components including...
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7593502 |
Methods and apparatus for fast rotation speed scanners
Methods and apparatus for an imaging system are provided. The imaging system includes a gantry having a stationary member coupled to a rotating member. The rotating member has an opened area...
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7591590 |
Radiation attenuation system
A radiation attenuation system for use with Computed Tomography procedures and a Computed Tomography having a radiation attenuation system are disclosed. The radiation disclosed attenuation system...
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7590216 |
Cone beam local tomography
Methods, systems and processes for providing efficient image reconstruction using local cone beam tomography which provide a reduced level of artifacts without suppressing the strength of the...
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7590215 |
Coherent-scatter computer tomograph
Conventional CSCT may require a complex reconstruction involving a large number of calculations. According to an exemplary embodiment of the present invention, additional collimators are used in...
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7587022 |
Correlation-based motion estimation of object to be imaged
An imaging system in an example comprises an x-ray source, a detector, a data acquisition system (DAS), and a computer. The x-ray source emits a beam of x-rays toward an object to be imaged. 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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7583784 |
Method for calculating computed tomography pictures from detector data of a CT having at least two radiation sources
A method is for calculating computed tomography pictures from detector data of a CT that uses at least two radiation sources that generate different conical beams. A spatial distribution of...
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7583783 |
X-ray computer tomograph and method for examining a test piece using an x-ray computer tomograph
An x-ray computer tomograph, having an x-ray source that generates a fan beam of x radiation and having a two-dimensional energy-resolving detector array, both of which are situated on opposite...
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7583782 |
X-ray CT apparatus and an image controlling method thereof
An X-ray CT apparatus and image controlling method thereof that achieves a higher time resolution tomography image on a region of interest (ROI) of an object while reducing a total amount of X-ray...
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7583781 |
X-Ray CT apparatus and method of controlling the same
An X-ray CT apparatus includes an X-ray detector that is asymmetrically disposed with respect to an irradiation axis of an X-ray and first and second ends that are disposed close to and far from...
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7583780 |
Systems and methods for improving a resolution of an image
A method for reconstructing an image in a tomographic imaging system is described. The method includes improving a spatial resolution of the image by iteratively reconstructing the image.
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7583779 |
System and method for acquisition and reconstruction of contrast-enhanced, artifact-reduced CT images
A system and method are disclosed for reconstructing contrast-enhanced CT images that are substantially free of beam-hardening artifacts. An imaging system includes a radiation source configured to...
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7583778 |
X-ray CT apparatus and X-ray CT backprojection operating method
An X-ray CT apparatus is provided which can be suppressed or eliminated of aliasing occurrence in the R-R scheme. The X-ray CT apparatus has a reconstructing device for processing the collected...
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7583777 |
Method and apparatus for 3D reconstruction of images
A method for producing an image of an object includes scanning an object with an imaging apparatus to collect projection data of the object utilizing cone sampling. The projection data is rebinned...
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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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7574249 |
Device-less gating of physiological movement for improved image detection
A method of imaging an object using a medical imaging system is provided. The imaging method acquires a stream of sinogram data. Changes in the stream of sinogram data corresponding to movement of...
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7573974 |
Device and method for non-contact scanning of contact lens and contact lens mold geometry
The invention relates to an apparatus and method for non-contact/non-destructive measurement of the geometry of molded ophthalmic lenses and the precision molds and tooling used in the manufacture...
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7573973 |
Methods and systems to facilitate reducing cone beam artifacts in images
Methods and systems for generating images from a set of projection data acquired during a CT scan is provided. The system includes a computer programmed to utilize at least one of a cone angle...
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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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7570730 |
Multiple focus acquisition
Image quality is an important feature for CT scanning, in particular for helical cone-beam CT scanning. By using projection data acquired at two different positions of the focal spot of the...
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7567693 |
Methods for physiological monitoring training, exercise and regulation
Computer executable software and device for guiding brain activity training comprising: logic which takes data corresponding to activity measurements of one or more internal voxels of a brain and...
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7564937 |
X-ray CT device and method of controlling the same
An X-ray CT device generates an X-ray beam in the shape of a cone along the body axis of a subject from an X-ray tube to the subject and detects the X-rays that pass the subject by a...
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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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7561659 |
Method for reconstructing a local high resolution X-ray CT image and apparatus for reconstructing a local high resolution X-ray CT image
Disclosed is a method for reconstructing an X-ray CT (computerized tomography) image. The method includes acquiring projection data by means of irradiation of X-rays on a target object at a...
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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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