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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...
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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...
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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...
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7252789 |
High-density scintillators for imaging system and method of making same
A scintillator composition comprising a garnet represented by (M 1-x-y N x A y ) 3 (Al 5-a-b C a D b )O 12 , where M comprises yttrium, or terbium, or gadolinium, or holmium, or erbium, or thulium,...
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7253415 |
Method and apparatus for vetoing random coincidences in positron emission tomographs
An improved gamma ray detector and method for discriminating between “true” pairs of gamma rays produced by a single positron annihilation event and those randomly occurring “pairs” of...
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7251523 |
Tomogram creating device and radiation examining apparatus
An X-ray CT examination using a radiation examining apparatus corresponding to an X-ray CT is effected on an unbreathed examinee. A tomogram creating apparatus creates a first tomogram, based on an...
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7247844 |
Instrument and method to facilitate and improve the timing alignment of a pet scanner
A system for providing the timing alignment for a scanner. The system includes a removable source and detector assembly which is placed near the center of the scanner when in use. The source...
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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,...
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7231011 |
Apparatus for photon activation positron annihilation analysis
Non-destructive testing apparatus according to one embodiment of the invention comprises a photon source. The photon source produces photons having predetermined energies and directs the photons...
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7227149 |
Method and system for positron emission tomography image reconstruction
Methods and systems for controlling a positron emission tomography (PET) system are provided. The method includes receiving timing information from a PET system during an imaging scan using the PET...
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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,...
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7214944 |
Radiation detection system allowing improved counting of events
The invention concerns a radiation detection device comprising a plurality of detector elements (DET 1 , DET 2 ), each detector element (DET 1 ) being associated with a circuit (AMP 1 -CMP 1 ) for...
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7199370 |
Device and method for digitizing gamma ray energy and characterizing peak time and decay time constant without the use of ADC
A device and method used in high resolution positron emission tomography (PET) systems for digitizing gamma ray energy and characterizing peak time and decay time constant, models a voltage pulse...
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7173248 |
Methods and systems for positron emission tomography data correction
Methods and systems for image overlap correction are provided. The method includes acquiring the emission projection data from a plurality of scan frames that extend across at least a portion of a...
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7154096 |
Diagnostic imaging device for medical use
A diagnostic imaging device is provided to detect cancers in early stages with a high degree of accuracy while minimizing the risk of X-ray exposure that can be caused by the X-ray CT examination,...
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7149565 |
Tomogram creating method
An X-ray CT examination using a radiation examining apparatus corresponding to an X-ray CT is effected on an unbreathed examinee. A tomogram creating apparatus creates a first tomogram, based on an...
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7138635 |
Detector module for CT and/or PET and/or SPECT tomography
A detector module is for CT and/or PET and/or SPECT examinations, and includes a number of measuring channels. Each measuring channel includes a direct converter for directly converting incident...
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7132663 |
Methods and apparatus for real-time error correction
Methods and apparatus for correcting for at least one of deadtime losses and random coincidences in a positron emission tomography (PET) medical imaging device having a plurality of detectors at...
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7129495 |
Method and apparatus for timing calibration in a PET scanner
The invention is directed to a method and apparatus for timing calibration in a PET scanner. According to one embodiment, the invention relates to a method for timing calibration in a PET scanner...
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7129496 |
Method and system for scattered coincidence estimation in a time-of-flight positron emission tomography system
A method and system for controlling a positron emission tomography (PET) system is disclosed. The method includes acquiring image data and time-of-flight information from a PET system during an...
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7129494 |
Very fast doped LaBr3 scintillators and time-of-flight PET
The present invention concerns very fast scintillator materials capable of resolving the position of an annihilation event within a portion of a human body cross-section. In one embodiment, the...
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7126126 |
Compact conscious animal positron emission tomography scanner
A method of serially transferring annihilation information in a compact positron emission tomography (PET) scanner includes generating a time signal for an event, generating an address signal...
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7115875 |
PET scanner with photodetectors and wavelength shifting fibers
A method for estimating a location of a most-likely photon source on a scintillator block includes obtaining a measured photodetector signal indicative of a distribution of photons received by a...
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7115874 |
Mission-specific positron emission tomography
A handheld gamma camera or PET system with a disposable detector head is provided. This system includes a configuration of a gamma camera or PET scanner in which optical fibers or bundles of...
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7110808 |
Method of optimizing radiosurgery and radiotherapy with metalloporphyrins
An apparatus and method for subsequent optimization of radiosurgery and radiotherapy is provided. The invention includes administering a metalloporphyrin to the patient, and then creating a...
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7102135 |
PET scanner
A positron emission camera comprising a plurality of scintillators, wherein the scintillators include LuAlO 3 :Ce (Lu x Y 1−x AP where 0.5≦x≦0.995) based crystals ( 18,20 ). In particular,...
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7091489 |
Positron emission tomography wrist detector
A method of serially transferring annihilation information in a compact positron emission tomography (PET) scanner includes generating a time signal representing a time-of-occurrence of an...
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7087904 |
Positron emission tomography device
This invention is a positron emission tomography (PET) device comprising as a scintillator a perovskite organic/inorganic hybrid compound selected from the group represented by the general...
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7088901 |
Light guide apparatus and method for a detector array
According to one aspect, the invention relates to a light guide which may include a first surface which receives light, a second surface which emits light, wherein the second surface is parallel to...
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7087905 |
Radiation three-dimensional position detector
The radiation three-dimensional position detector of the present invention comprises a scintillator unit ( 10 ), a light receiving element ( 20 ) and an operation section ( 30 ). The scintillator...
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7045789 |
Radiation detection device for nuclear medicine diagnosis device and detecting method therefor
In case of performing so-called “PET acquisition”, a nuclear medical diagnosis apparatus according to the present invention does not set only gamma rays which imparted predetermined energy...
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7045802 |
Method and apparatus for coincidence imaging digital triggering
A method for operating a coincidence imaging system is provided. The method includes receiving samples from a detector output and determining an intersection of a first line corresponding to a...
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7039227 |
PET device and image generating method for pet device
A PET apparatus is provided, which ensures excellent quantitativeness by properly correcting the influence of scattered radiation while improving the resolution of a reconstructed image and keeping...
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7038210 |
Pet device
A rotating ceptor 20 provided inside a detector portion 10 includes nine shield plates S 1 to S 9 disposed in parallel to each other in between adjacent detector rings R, acts as a...
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7038212 |
Method and system for normalization of a positron emission tomography system
A method and system for normalization of a positron emission tomography system is provided. The method includes acquiring three-dimensional normalization scan data from a positron emission...
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7030382 |
Crystal-based coincidence timing calibration method
A method of calibrating detectors in a detector ring of a PET scanner, each detector including a plurality of crystals, the PET scanner having a field of view, is disclosed. The method comprises...
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7026621 |
System and method for producing a detector position map
The invention relates to a system and method for generating a detector position map for an array of detectors. The detector position map comprises a map which converts measured position coordinates...
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6992295 |
PET scanner with structured optical element
A PET scanner includes a scintillator block and a plurality of photodetectors, each of which has a field of view that includes a portion of the scintillator block. An optical element is disposed...
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6987270 |
Method to account for event losses due to positron range in positron emission tomography and assay of positron-emitting isotopes
A method of quantitative positron emission analysis includes accounting for the loss of positron-electron annihilation events and quantitative inaccuracies in positron emission assays.
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6980683 |
On-line correction of patient motion in three-dimensional positron emission tomography
A device and method for on-line correction of patient motion in three-dimensional positron emission tomography. The devices encompass an on-line hardware pipelining architecture to support 3D...
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6963065 |
Normalization apparatus for panel detector PET scanners
A normalization apparatus and method for a PET scanner with panel detectors for obtaining an estimate of a normalization array, for correction for count rate effects on the normalization array, and...
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6956214 |
Production method for making position-sensitive radiation detector arrays
Systems and methods are described for a production method for making position-sensitive radiation detector arrays. A method includes applying a plurality of masks to a plurality of scintillation...
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6921902 |
Scatter correction device for radiative tomographic scanner
A scatter correction device for radiative tomographic scanners is disclosed. The device comprises at least one steady support component and multiple beam stoppers made of high Z materials such as...
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6915004 |
Continuous tomography bed motion data processing apparatus and method
Apparatus and methods for three dimensional image reconstruction from data acquired in a positron emission tomograph (PET). This invention uses a parallel/pipelined architecture for processing the...
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6903344 |
Baseline correction in PET utilizing continuous sampling ADCs to compensate for DC and count rate errors
A method and apparatus for determining and correcting the baseline of a continuously sampled signal for use in positron emission tomography. The method employs continuous signal sampling to...
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6858847 |
Circuit and method for energy discrimination of coincident events in coincidence detecting gamma camera system
A positron imaging system includes a pair of scintillation detectors for detecting a pair of gamma rays produced by annihilation of a positron within a distribution field, such as within a patient....
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6858187 |
Apparatus for the preparation of a radioactive aqueous solution
A device for preparing a radioactive water solution to be infused in a patient includes a reaction chamber ( 13 ) in which radioactive water vapour is formed by the catalysed reaction of oxygen gas...
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6858848 |
Gamma-ray imaging
The specification describes an instrument and a method for determining information about an object (J), only one side of which is available for examination. The method involves exposing the object...
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6858850 |
Method for dynamic stabilization of PET detector gains
A method and apparatus for calibrating PET PMTs includes conducting a calibration procedure and determining whether a number of photons absorbed by a corresponding crystal exceeds a count...
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6858849 |
PET apparatus
A PET apparatus ( 1 ) includes a detecting section ( 10 ). Each cylindrical detector ( 13 n ) of the detecting section ( 10 ) has a plurality of block detectors ( 14 1 to 14 M ) arranged on the...
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