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| Number | Title | Issue Date |
| 8431904 | Data-processing electronics for use in a positron-emission tomography system Improved processing electronic hardware are disclosed that facilitate the efficient processing of PET system data, while enhancing accuracy and compatibility of PET systems with other analytical methods (e.g., magnetic resonance imaging). Improvements include the us... | 04/30/2013 |
| 8426822 | System and method for three-dimensional imaging using scattering from annihilation coincidence photons Systems and methods are described herein for performing three-dimensional imaging using backscattered photons generated from a positron-electron annihilation. The systems and methods are implemented using the pair of photons created from a positron-electron annihila... | 04/23/2013 |
| 8415631 | TOF-PET apparatus, detector ring and detector According to one embodiment, a TOF-PET apparatus includes a plurality of detector rings arranged along a central axis thereof. Each of the detector rings comprises a plurality of scintillators and a plurality of photomultipliers. The scintillators are arranged on a ... | 04/09/2013 |
| 8384036 | Positron emission tomography (PET) imaging using scattered and unscattered photons Determining the position of a radioactive source in a PET system. Detecting a scatter coincidence event characterized by a full-energy photon detected at a first detector and partial-energy photon at a second detector. Measuring the arrival time difference between t... | 02/26/2013 |
| 8373131 | Nuclear medicine imaging apparatus and analyzing system A PET apparatus includes an optical coupling detachment testing unit. In one example, the optical coupling detachment testing unit inputs an electric signal to a piezoelectric element or the like adhered to a detector module and generates a sound wave within the det... | 02/12/2013 |
| 8350220 | Enhanced PET scanner detector module A programmable memory is provided in each of a plurality of detector modules arrayed in a positron emission tomography (PET) scanner. Each detector module memory stores data associated with its respective detector module. Each memory may be coupled to a processor vi... | 01/08/2013 |
| 8344326 | Pet system A PET instrument free from problems of maintenance of a detector when a field of view in a body axial direction of a subject is significantly enlarged. A gantry (1) is divided into a plurality of units (5) in the body axial direction of the subject. Ea... | 01/01/2013 |
| 8314394 | System and method for three-dimensional imaging using scattering from annihilation coincidence photons Systems and methods are described herein for performing three-dimensional imaging using backscattered photons generated from a positron-electron annihilation. The systems and methods are implemented using the pair of photons created from a positron-electron annihila... | 11/20/2012 |
| 8193505 | System and method for scatter normalization of PET images In positron emission tomography (PET), a detector's response to scattered radiation may be different from its response to unscattered (true coincidence) photons. This difference should be accounted for during normalization and scatter correction. The disclosure show... | 06/05/2012 |
| 8188436 | Background signal suppression in pet spectrums A method and a facility are disclosed for imaging a PET spectrum with a PET detector, especially a PE-MR tomograph, and evaluation of the PET spectrum. To improve the correction of the base line in PET and thereby to improve the energy resolution for the PET images,... | 05/29/2012 |
| 8183530 | Positron emission tomography and optical tissue imaging A mobile compact imaging system that combines both PET imaging and optical imaging into a single system which can be located in the operating room (OR) and provides faster feedback to determine if a tumor has been fully resected and if there are adequate surgical ma... | 05/22/2012 |
| 8148694 | Realtime line of response position confidence measurement A PET event position calculation method using a combination angular and radial event map wherein identification of the radial distance of the event from the centroid of the scintillation crystal with which the event is associated as well as angular information is pe... | 04/03/2012 |
| 8148695 | Nuclear medical diagnosis apparatus A PET apparatus comprises a plurality of detector units in the circumferential direction, wherein the detector unit includes a plurality of unit substrates therein, and wherein the unit substrate includes: a plurality of detectors upon which a γ-ray is incident; an... | 04/03/2012 |
| 8143583 | Positron emission tomography detector elements using different sizes of photomultiplier tubes A positron emission tomography detector module that includes an array of optically isolated crystal elements and photomultiplier tubes that receive light emitted from the array of crystal elements and are arranged to cover the array of crystal elements. The photomul... | 03/27/2012 |
| 8084742 | Positron emission tomography with phoswich detector, systems and methods Imaging systems including phoswich scintillator detectors, related devices and methods. ... | 12/27/2011 |
| 8058620 | Method for improving clinical data quality in positron emission tomography A method for improving clinical data quality in Positron Emission Tomography (PET). The method provides for the processing of PET data to accurately and efficiently determine a data signal-to-noise (SNR) corresponding to each individual clinical patient scan, as a f... | 11/15/2011 |
| 8026488 | Methods for positive emission tomography (PET) target image segmentation A method for positive emission tomography (PET) target image segmentation is provided. The method comprises capturing and digitizing image data of a selected target, determining an initial concentration ratio based on an initial source background ratio and an initia... | 09/27/2011 |
| 8022368 | Hybrid method for randoms variance reduction A method for reducing randoms variance in a Positron Emission Tomograph (PET) or Positron Emission Tomograph combined with another Medical Imaging device is disclosed. An average of an element of the randoms event (delayeds) sinogram may be estimated by dividing fan... | 09/20/2011 |
| 8013306 | Single crystal scintillator material and method for producing the same A single crystal scintillator material according to the present invention includes a single crystal portion that is represented by the compositional formula (CexLu1-x)BO3 in which the mole fraction x of Ce satisfies 0.0001≦x≦0.05... | 09/06/2011 |
| 7968849 | Positron CT apparatus Whether a phenomenon of photon incidence on detectors is a double event or a single event is determined (step S1). When it is a double event, emission data is collected (S2), and is put to an image reconstruction process (S3). When it is a singl... | 06/28/2011 |
| 7968850 | System and method for using multiple collimation data for tomography Methods and systems for producing an image. A measurement is obtained, and a projector function is generated using the obtained measurement. The generated projector function is modified based on an a priori image. An image is reconstructed using the modified project... | 06/28/2011 |
| 7964849 | Nuclear medical diagnosis apparatus A PET apparatus comprises a plurality of detector units in the circumferential direction, wherein the detector unit includes a plurality of unit substrates therein, and wherein the unit substrate includes: a plurality of detectors upon which a γ-ray is incident; an... | 06/21/2011 |
| 7923690 | Method of and software for conducting motion correction in tomographic scanning and system for tomographic scanning using the method During data acquisition in a tomographic scan of a subject unscattered events and scatter events are collected. The data are corrected for the scatter events and movement of the subject during the scan. A scatter estimate is derived for use in the reconstruction of ... | 04/12/2011 |
| 7884330 | Detection module A detection module for detecting electro-magnetic radiation comprises a photosensor, a current integration circuit and an arithmetic unit fits the integration samples to a predetermined time dependency of the integrated current and computes an accumulated electrical... | 02/08/2011 |
| 7863573 | Positron emission tomography imaging system, detector, data processing apparatus, computer readable program product having positron emission tomography imaging program for user terminal, and method for positron emission tomography diagnosis A positron emission tomography imaging system includes a detector configured to detect radiation emitted from an object to be examined, a data processing apparatus configured to reconstruct image data for positron emission tomography diagnosis from detection data ob... | 01/04/2011 |
| 7858944 | Dedicated mobile high resolution prostate PET imager with an insertable transrectal probe A dedicated mobile PET imaging system to image the prostate and surrounding organs. The imaging system includes an outside high resolution PET imager placed close to the patient's torso and an insertable and compact transrectal probe that is placed in close proximit... | 12/28/2010 |
| 7858943 | Methods of performing PET sinogram quality check A method for determining quality of sinograms produced by a medical imaging device. The method may include placing a uniform phantom object in the field of view of the medical imaging device; acquiring one or more phantom sinograms of the uniform phantom object; est... | 12/28/2010 |
| 7851763 | Method for improving clinical data quality in positron emission tomography A method for improving clinical data quality in Positron Emission Tomography (PET). The method provides for the processing of PET data to accurately and efficiently determine a data single-to-noise ratio (SNR) corresponding to each individual clinical patient scan, ... | 12/14/2010 |
| 7800070 | Quantum photodetectors, imaging apparatus and systems, and related methods A camera sub-module is provided for providing tomographic imaging of radiation emissions generated internally by a body. The camera sub-module includes a radiation-emitting layer having a radioactive source for emitting transmission emissions, and at least one radia... | 09/21/2010 |
| 7795590 | Nuclear medical diagnosis apparatus A PET apparatus comprises a plurality of detector units in the circumferential direction, wherein the detector unit includes a plurality of unit substrates therein, and wherein the unit substrate includes: a plurality of detectors upon which a γ-ray is incident; an... | 09/14/2010 |
| 7791029 | Digital identification and vector quantization methods and systems for detector crystal recognition in radiation detection machines A digital method and system allowing crystal identification in radiation detector machines is described. The crystal identification is based on recognition of radiation detector signal shape through discrimination of detector signal's dynamic characteristics. The di... | 09/07/2010 |
| 7786442 | Method and apparatus for ion source positioning and adjustment The invention is directed to a method and apparatus for ion source positioning and adjustment. According to one embodiment, the invention relates to an apparatus for ion source positioning and adjustment. The apparatus comprises a bottom plate, a middle plate and a ... | 08/31/2010 |
| 7772559 | Method for stabilizing the gain of a pet detection system A method for stabilizing the gain of a PET detection system with a cooling unit includes: determining the temperature of at least one component of the PET detection system, comparing the actual gain with a reference value, and actuating the cooling unit to influence... | 08/10/2010 |
| 7745794 | Positron emission tomography module A positron emission tomography module is disclosed. In at least one embodiment, the positron emission tomography module includes a gamma ray detector arrangement designed such that it can alternately be combined with a magnetic resonance tomograph and with a compute... | 06/29/2010 |
| 7741607 | Modular signal processing backbone for PET An imaging system (2) having a scalable event processing architecture includes a plurality of detector modules (4) arranged around an associated imaging region (8) to detect radiation events emitted from a subject disposed within the imaging reg... | 06/22/2010 |
| 7737405 | Time-of-flight (TOF) positron emission tomography (PET) reconstruction from time-truncated projection data A method of TOF-PET image reconstruction using time-truncated TOF-PET projection data. The time-truncated TOF-PET data is obtained by narrowing the scanner time window to a smaller “time window field of view,” which reduces the field of view of a TOF-PET scanner... | 06/15/2010 |
| 7737404 | Signal acquisition in PET scanners A Positron Emission Tomography (PET) scanner has a plurality of photo detector blocks. Each photo detector block or region has a plurality of photo detectors, a multiplexer receiving output signals from the plurality of photo detectors and generating a multiplexer o... | 06/15/2010 |
| 7714291 | Method of and software for calculating a scatter estimate for tomographic scanning and system for tomographic scanning The method calculates a scatter estimate for annihilation photons in a subject having a distribution of attenuation. The method can be used for scatter correction of detection data from a positron emission tomographic scanner. The method uses the following steps: ... | 05/11/2010 |
| 7671339 | Positron emission tomography scanner and radiation detector A positron emission tomography (PET) scanner is provided which uses information on the time-of-flight difference (TOF) between annihilation radiations for image reconstruction. The scanner has detection time correction information (memory) corresponding to informati... | 03/02/2010 |
| 7655913 | Correcting misalignment effects in reconstructed nuclear medical images A method and system of correcting misalignment effects in reconstructed images of a nuclear medical imaging apparatus includes calculating misalignments of a detector to accommodate for deflections (e.g., gravity induced deflections) of a detector (e.g., a cantileve... | 02/02/2010 |
