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| Number | Title | Issue Date |
| 7291840 | Combined transmission/emission tomography apparatus A combined transmission/emission tomography apparatus for generation of tomographic slice images of an examination subject (preferably of a patient), has a supporting structure composed of a stationary stator and a rotor that rotates in operation, with at least one ... | 11/06/2007 |
| 7279676 | Position sensitive radiation spectrometer A position sensitive radiation spectrometer for identifying, quantifying, and locating a radioactive source in a target. The position sensitive radiation spectrometer includes an array of gamma-ray detectors arranged along one or more dimensions of a container to be... | 10/09/2007 |
| 7265352 | Real-time list mode reconstruction In positron emission tomography, a nuclear medicine scanner is utilized to detect γ-ray events resulting from positron annihilation events. Molecules with known behaviors are tagged with radioactive isotopes which decay into γ-ray pairs which are detected coincide... | 09/04/2007 |
| 7262415 | Gantry for geometrically configurable and non-configurable positron emission tomography detector arrays A gantry system for geometrically configuring a plurality of detectors for image scanning a patient comprises a plurality of essentially planar sensor support rings forming a barrel surrounding a central scanning area. Each ring is formed by opposing upper and lower... | 08/28/2007 |
| 7262416 | Gamma camera with dynamic threshold A method of locating an event with a gamma camera (12) of an emission computed tomography (ECT) scanner (10) is provided. The gamma camera (12) includes a matrix of sensors (22) situated to view the event. The sensors (22) have res... | 08/28/2007 |
| 7262417 | Method and system for improved image reconstruction and data collection for compton cameras Systems and methods are described for image reconstruction. A set of conical integrals are calculated to satisfy a completeness condition and are related to a distribution of radioactivity. ... | 08/28/2007 |
| 7262868 | Method of and apparatus for ascertaining the transverse dimensions of rod-shaped articles The invention relates to a method of and to an apparatus for ascertaining the transverse dimensions, such as diameters, of one or more rod-shaped articles, for example, continuous or finite-length cigarette rods and/or other rod-shaped smokers' products. When the me... | 08/28/2007 |
| 7260253 | Method for correction of relative object-detector motion between successive views Motion correction for optical tomographic imaging in three dimensions. An object of interest is illuminated to produce an image. A lateral offset correction value is determined for the image. An axial offset correction value is determined for the image. The lateral ... | 08/21/2007 |
| 7260174 | 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 detector is constructed to be segmented in the x-ray penetration direct... | 08/21/2007 |
| 7253416 | Radiation detector and detection method, and medical diagnostic apparatus employing same In a detector arrangement for a medical diagnosis apparatus as well as a medical imaging diagnostic method, radiation quanta striking a detector are detected and evaluated with spatial resolution. The use of collimators is thereby omitted, such that radiation quanta... | 08/07/2007 |
| 7254438 | Multimodality medical imaging system and method with intervening patient access area The invention comprises a system and method for creating medical images of a subject patient using a plurality of imaging devices, such as tomographic imaging scanners. The system comprises a plurality of imaging devices, each having a bore through which a patient i... | 08/07/2007 |
| 7252789 | High-density scintillators for imaging system and method of making same A scintillator composition comprising a garnet represented by (M1-x-yNxAy)3(Al5-a-bCaDb)O12, where M comprises yttrium, or terbium, or gadolinium, or holmium, or erbium, or thuli... | 08/07/2007 |
| 7242004 | Image correction method, image correction apparatus, and image correction program The image correction method according to an embodiment of the present invention includes the steps of: (a) generating an absorption correction map by replacing a CT value of each pixel of a CT image with a corresponding linear absorption coefficient and replacing th... | 07/10/2007 |
| 7242002 | Compact gamma camera A gamma camera system including a pair of gamma camera heads connected to form substantially a right angle. The pair of gamma camera heads are mounted on an arm. A rotation mechanism includes a pivot mounted on the arm and allows for rotation of pair of gamma camera... | 07/10/2007 |
| 7238943 | Asymmetrically placed cross-coupled scintillation crystals Systems and methods are described for asymmetrically placed cross-coupled scintillation crystals. A method includes coupling a plurality of photomultiplier tubes to a scintillation crystal array, the scintillation crystal array defining a plurality of corner edges, ... | 07/03/2007 |
| 7238946 | Nuclear imaging system using scintillation bar detectors and method for event position calculation using the same A gamma camera having a scintillation detector formed of multiple bar detector modules. The bar detector modules in turn are formed of multiple scintillation crystal bars, each being designed to have physical characteristics, such as light yield, to achieve a suffic... | 07/03/2007 |
| 7236257 | Jump takeoff position indicator system A jump takeoff position indicator system that discloses the point of takeoff of a long jump or triple jump in athletic competition or practice when an athlete's foot comes in contact with a takeoff board when beginning a jump. A plurality of light beams are emitted ... | 06/26/2007 |
| 7233002 | SPECT gamma camera with a fixed detector radius of orbit The current invention presents designs of SPECT gamma cameras without the in-out mechanical motion of the detectors. The elimination of this motion is achieved by the implementation of iterative algorithms, such as Resolution Recovery and/or Wide Beam Reconstruction... | 06/19/2007 |
| 7230247 | Detector A semiconductor chip S is formed with a plurality of photodiodes PD and comprises a plurality of output terminals T of the photodetector elements provided on the surface thereof. The circuit substrate C comprises a plurality of input terminals I to which signals fro... | 06/12/2007 |
| 7220961 | System and method for quality control in nuclear imaging systems A method of controlling quality in a nuclear medicine imaging system includes providing an extendable radioactive source in a frame of the nuclear medicine imaging system, providing a detector having a field of view above the source, extending the radioactive source... | 05/22/2007 |
| 7217927 | Diversity processing of coincidence data In a PET scanner, a method for processing coincidence data includes associating a selected portion of the coincidence data with one of a plurality of subspaces of a coincidence space; deriving, from the coincidence data associated with subspace, a contribution to be... | 05/15/2007 |
| 7218701 | Radiological imaging apparatus The image pickup apparatus of the radiological imaging apparatus of the present invention includes many detector units, a ring-shaped detector support member and an X-ray source circumferential transport apparatus. Each of the detector units is attached to the detec... | 05/15/2007 |
| 7215738 | Method and system for automatically scanning and imaging the contents of a moving target The system and method described herein facilitate back-to-back automatic scanning of moving vehicles without have the vehicles stop in the scanning zone. The system includes a scanning zone that comprises a radiation source and a radiation source detector. The syste... | 05/08/2007 |
| 7206440 | Image smoothing with decoupled regularization A technique for simplifying the processing of tomographic imagery (e.g., CT and PET) via statistical smoothing is disclosed. An image smoothness criterion is imposed in the projection domain while identifying data that matches observed data within a desired toleranc... | 04/17/2007 |
| 7199371 | SPECT examination device A tomography device, particularly for single photon emission computed tomography (SPECT), comprises a multi-pinhole collimator and a detector for detecting gamma quanta or photons that penetrate the multi-pinhole collimator. In a tomographic method using the device,... | 04/03/2007 |
| 7197105 | Efficient image reconstruction algorithm for the circle and line cone beam computed tomography Methods, systems and processes for providing efficient, accurate and exact image reconstruction using portable and easy to use C-arm scanning devices and rotating gantries, and the like. The invention can provide exact convolution-based filtered back projection (FBP... | 03/27/2007 |
| 7197404 | Computation of radiating particle and wave distributions using a generalized discrete field constructed from representative ray sets The present system and method for simulating particles and waves is useful for calculations involving nuclear and full spectrum radiation transport, quantum particle transport, plasma transport and charged particle transport. The invention provides a mechanism for c... | 03/27/2007 |
| 7197171 | Nuclear imaging A method for producing a nuclear medicine image utilizing emission data in an iterative reconstruction process. The starting point for the iterative process is based on internal structure information. The internal structure information can be based on data that is d... | 03/27/2007 |
| 7193208 | Time-of-flight capable high resolution pet detector An array of position-sensitive avalanche photodiodes is provided in which output signal contacts from corners of each photodiode are grouped in common for readout. Each photodiode may be provided on a single wafer or chip, with photodiodes being separated by a trenc... | 03/20/2007 |
| 7190820 | Registration of nuclear medicine images A method of registering a plurality of functional images includes providing a plurality of functional images, providing a plurality of structural images, each one of which having a known positional relationship to at least one of said plurality of functional images,... | 03/13/2007 |
| 7176466 | Multi-dimensional image reconstruction Apparatus for radiation based imaging of a non-homogenous target area having distinguishable regions therein, comprises: an imaging unit configured to obtain radiation intensity data from a target region in the spatial dimensions and at least one other dimension, an... | 02/13/2007 |
| 7173249 | Nuclear medical diagnostic apparatus and method for detecting radiation A method for detecting radiation emitted from a radiation source within a subject. A radiation detector is moved in approximately parallel with the direction of the body axis of the subject. The detector is rotated about the body axis. The distance between the subje... | 02/06/2007 |
| 7166848 | Three dimensional radiation detector A pixelated detector assembly comprising a stack of thin detector crystals, each detector crystal having a pair of planar surfaces bound by edges substantially thinner than the dimensions of the surfaces. The stack is disposed such that the radiation to be detected ... | 01/23/2007 |
| 7166846 | Multi-pinhole collimation for nuclear medical imaging A multi-pinhole collimator nuclear medical imaging detector divides a target object space into many non-overlapping areas and projects a minified image of each area onto a segmented detector, where each segment functions as an independent detector or imaging cell. S... | 01/23/2007 |
| 7164143 | PET and SPECT systems with attenuation correction A radiation source comprising: a source of radiation; a plate having an aperture formed therein, said aperture facing the source of radiation; and means for moving the source when no radiation is d... | 01/16/2007 |
| 7162004 | Medical imaging diagnosis apparatus A PET gantry and a CT gantry are placed in parallel such that the CT gantry becomes remoter to a common examination couch having a movable couch table top board mounted with a subject person and the CT gantry is made to be movable. The gantries are controlled by a c... | 01/09/2007 |
| 7162522 | User profile classification by web usage analysis Demographic information of an Internet user is predicted based on an analysis of accessed web pages. Web pages accessed by the Internet user are detected and mapped to a user path vector which is converted to a normalized weighted user path vector. A centroid vector... | 01/09/2007 |
| 7158823 | Limited-angle frequency-distance resolution recovery in nuclear medicine imaging A nuclear camera (10) includes a plurality of detector heads (12) which have collimators (14) for fixing the trajectory along which radiation is receivable. A rotating gantry (22) rotates the detector heads around the subject collecting l... | 01/02/2007 |
| 7155047 | Methods and apparatus for assessing image quality A method for retrospectively measuring a plurality of transmission datasets collected using an imaging system includes acquiring a plurality of multi-axial field-of-view (AFOV) datasets, the datasets including a plurality of pairs of adjacent images, determining a c... | 12/26/2006 |
| 7154989 | Radiological imaging apparatus The image pickup apparatus of the radiological imaging apparatus of the present invention includes many detector units, a ring-shaped detector support member and an X-ray source circumferential transport apparatus. Each of the detector units is attached to the detec... | 12/26/2006 |
