Abstract: A system includes a gantry, a first positron emission tomography (PET) section including a first detector ring oriented about an axis, and a second PET section supported by the gantry and including a second detector ring oriented about the axis. The gantry is adjustable to move the second PET section relative to the first PET section.

Abstract: An integrated magnetic resonance (MR) and positron emission tomography (PET) system includes an MR scanner including a magnet that defines an opening in which a subject is positioned, a set of PET detectors disposed between the opening and the magnet, and a plurality of data processing units, each data processing unit being configured for communication with a respective one or more of the PET detectors of the set of PET detectors. Each data processing unit includes an RF shield housing, and the RF shield housings of the plurality of data processing units are disposed in a symmetrical arrangement relative to the opening.

Abstract: An imaging system includes interleaved emission detectors and transmission detectors. Emission detectors and transmission detectors can be interleaved along the axis of relative patient motion. Emission detectors and transmission detectors can be interleaved orthogonal to the axis of relative patient motion. Emission detectors can be single photon emission computed tomography detectors and the transmission detectors can be x-ray computed tomography detectors.

Abstract: An integrated magnetic resonance (MR) and positron emission tomography (PET) system includes an MR scanner including a magnet that defines an opening in which a subject is positioned, a set of PET detectors disposed between the opening and the magnet, and a plurality of data processing units, each data processing unit being configured for communication with a respective one or more of the PET detectors of the set of PET detectors. Each data processing unit includes an RF shield housing, and the RF shield housings of the plurality of data processing units are disposed in a symmetrical arrangement relative to the opening.

Abstract: An imaging system includes interleaved emission detectors and transmission detectors. Emission detectors and transmission detectors can be interleaved along the axis of relative patient motion. Emission detectors and transmission detectors can be interleaved orthogonal to the axis of relative patient motion. Emission detectors can be single photon emission computed tomography detectors and the transmission detectors can be x-ray computed tomography detectors.

Abstract: A system and method is provided for performing multimodal imaging of an object. The system and method includes performing spatio-temporal detection of transmission CT data of a fan X-ray beam, performing, and simultaneously with the spatio-temporal detection of transmission CT data, spatio-temporal detection of emission nuclear imaging data emitted from the object with a propagation direction across the propagation direction of the fan X-ray beam. The system and method further includes identifying at least two zones in the object based on the transmission CT data, reconstructing an image object from the emission nuclear imaging data under the constraint that respective portions of detected nuclear events are associated with selected zones, and outputting data representative of the image object.

Abstract: 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 exterior periphery, at least one rail, at least one mobile camera, that is movably mounted on the at least one rail, and at least one motor. The motor drives at least one mobile camera, and the at least one mobile camera is movable along at least one rail within the exterior casing, to a plurality of radiation receiving positions.

Abstract: The application discloses multimodality imaging systems that include a gantry with a stationary unit and a rotating unit rotatable around a rotation axis and providing an opening extending along the rotation axis through which a subject is insertable, a support table coupled to the stationary unit for supporting a subject, a table drive unit coupled to the support table for translating the support table in a direction extending along the rotation axis, and a CT source coupled to the rotating unit, the CT source being configured to emit a fan beam through the opening, a CT detector coupled to the rotating unit opposite the CT source, the CT source being configured to detect the fan beam, a nuclear imaging detector coupled to the rotating unit, the nuclear imaging detector being configured to detect nuclear radiation emitted from within the opening in a direction differing from a propagation direction of the fan beam.

Abstract: Computer-implemented methods of reconstructing an image object for a measured object in object space from image data in data space include causing a computer to execute instructions for providing zonal information separating the object space into at least two zones, providing at least two zonal image objects, each zonal image object being associated with one of the at least two zones, reconstructing the image object using a data model derived from forward projecting the zonal image objects into data space, wherein the contribution of each zonal image object to the data model is weighted according to a zonal scaling factor, and outputting the image object.

Abstract: 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 exterior periphery, at least one rail, at least one mobile camera, that is movably mounted on the at least one rail, and at least one motor. The motor drives at least one mobile camera, and the at least one mobile camera is movable along at least one rail within the exterior casing, to a plurality of radiation receiving positions.

Abstract: A multi-modality diagnostic imaging system includes a first imaging subsystem, such as a computed tomographic (CT) system, for performing a first imaging procedure on a subject. The first imaging system has a gantry that slides along rails. A second imaging subsystem, such as a nuclear medicine system (NUC), performs a second imaging procedure on a subject. The second imaging subsystem is separate from the first imaging system, but in the same room. The second imaging subsystem has a gantry or is gantryless. A patient couch supports a subject. The patient couch is supported on a couch support having vertical adjustment and horizontally fixed. In this manner, the patient is maintained in the same position for multiple types of scans using the same couch support without horizontal translation of the patient couch and patient.

Abstract: A medical apparatus for dealing with problems which, when a problem affecting the medical apparatus occurs, determine the component (7) which is the cause of the problem concerned and display it, in the event that this is a component (7) which can be exchanged by an apparatus user without service support, the means for dealing with problems (13) displaying a request to exchange this component.

Abstract: The invention relates to dealing with problems affecting a medical apparatus. In this method, if a problem occurs, a service center is notified of the problem by telecommunication, whereupon the service center issues problem-specific instructions by telecommunication for determining data with respect to the notified problem. Then, on the basis of the determined data, of which it has been notified by telecommunication, the service center determines a measure for dealing with the problem and gives notice of it by telecommunication, whereupon the measure for dealing with the problem is taken and a test of the medical apparatus is performed.

Abstract: A medical apparatus with elements (13) for dealing with problems which, when a problem affecting the medical apparatus occurs, determine the component (7) which is the cause of the problem concerned and display it, in the event that this is a component (7) which can be exchanged by an apparatus user without service support, the elements for dealing with problems (13) displaying a request to exchange this component.

Abstract: The invention relates to dealing with problems affecting a medical apparatus. In this method, if a problem occurs, a service center is notified of the problem by telecommunication, whereupon the service center issues problem-specific instructions by telecommunication for determining data with respect to the notified problem. Then, on the basis of the determined data, of which it has been notified by telecommunication, the service center determines a measure for dealing with the problem and gives notice of it by telecommunication, whereupon the measure for dealing with the problem is taken and a test of the medical apparatus is performed.

Abstract: A CT (computed tomography) apparatus has a detector system which produces an x-ray beam that rotates around a system axis, and which produces data representing attenuation of the x-rays by an examination subject, and a data transmission path for the transmission of data from the detector system to an image reconstruction computer that is stationary relative to the detector system. Data required for a live image are extracted from the data supplied by the detector system during the scanning of a subject under examination, and are transmitted during the scanning to the image reconstruction computer via the data transmission path and after completion of the scanning, all data supplied by the detector system during the scanning are transmitted to the image reconstruction computer.

Abstract: A CT (computed tomography) apparatus has a detector system which produces an x-ray beam that rotates around a system axis, and which produces data representing attenuation of the x-rays by an examination subject, and a data transmission path for the transmission of data from the detector system to an image reconstruction computer that is stationary relative to the detector system. Data required for a live image are extracted from the data supplied by the detector system during the scanning of a subject under examination, and are transmitted during the scanning to the image reconstruction computer via the data transmission path and after completion of the scanning, all data supplied by the detector system during the scanning are transmitted to the image reconstruction computer.

Abstract: A CT device for imaging slices that are inclined toward the system axis has an input unit for the entering the position of at least one slice that is to be imaged and that is inclined toward the system axis. A volume which completely contains the slice that is to be imaged and that is inclined toward the system axis is scanned by initially generating planar tomograms from the data acquired during the scanning of the volume, and the tomogram of a desired slice that is inclined toward the system axis is produced from these planar tomograms by multi-planar reconstruction.

Abstract: The preparation of pigment concentrates for the coloring of resin molding compositions in which the pigment is very finely dispersed is carried out successfully using, for the preparation of the pigment concentrates, a dispersant which contains the following components:from 0 to 90% by weight of a substantially amorphous poly-.alpha.-olefin,from 0 to 90% by weight of polyolefin wax,from 0 to 30% by weight of crystalline polyolefin, andfrom 1 to 50% by weight of a specific polyacrylic acid ester.

Abstract: In a computed tomography X-ray system, the number of A/D converters required to digitize detector output signals is reduced without degrading the resultant tomographic image. This hardware reduction results from combining certain detector output signals into a pseudo detector having a single output. The detector output signals thus combined represent data corresponding to X-ray beams having substantially the same Radon radius. Preferably such X-ray beams also traverse substantially the same region of the CT system's reconstruction circle. Where the pseudo detector includes the output signals read from N sequentially scanned detectors D.sub.i, where i=1 denotes the first read detector and i=N the last read detector, the output of each detector D.sub.i is delayed a time (N-i).tau., and the thus delayed outputs are summed together to provide the pseudo detector output. In the above relationship, .tau. is the interval between reading adjacent detectors D.sub.i and D.sub.i+1.