Patents Assigned to Ultraspect Ltd.
  • Patent number: 7881514
    Abstract: A method for imaging, including counting quanta of energy emitted into a range of angles from particles of an energy emitter distributed over a volume in a body, thereby generating a set of counts. The method further includes defining a probability distribution expression that specifies a local concentration of the particles of the energy emitter over the volume as a function of the set of counts, the function being defined in terms of respective coefficients of a plurality of different scales of the local concentration, including at least a first and a second scale. A dependence of the coefficients of the first scale on the coefficients of the second scale is specified, and the local concentration over the volume is computed by applying the probability distribution expression to the set of counts subject to the specified dependence.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: February 1, 2011
    Assignee: Ultraspect Ltd.
    Inventors: Jacob Oaknin, Shoulamit Cohen Shwartz
  • Patent number: 7817827
    Abstract: An apparatus and method for obtaining a planar image of a portion (4) of a body (5) and enhancing image quality of at least one specific organ or volume of interest located within the portion (4) of the body (5), administered with radiopharmaceutical substance radiating gamma rays, by using single photon emission imaging, for determination of functional information thereon, comprising: (a) acquiring at least one projection data of the portion (4), by means of a gamma camera detector (2); (b) determining the effective distance between the detector (2) and the specific organ of interest; (c) calculating weight values taking into account acceptance angles of the gamma camera detector (2) and the effective distance; and (d) obtaining a two dimensional image of a spatial distribution of the pharmaceutical substance within the portion (4) by mathematically analyzing the data in conjunction with weight values.
    Type: Grant
    Filed: June 20, 2004
    Date of Patent: October 19, 2010
    Assignee: Ultraspect Ltd.
    Inventors: Yaniv Gal, Jacob Oaknin, Shoulamit C. Shwartz, Israel Ohana
  • Publication number: 20100163736
    Abstract: 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, which compensate for the Line Spread Function effect due to the collimator characteristics. The use of these methods enables construction of SPECT gamma cameras with a range of novel designs, having their gamma detector (or detectors) orbiting the patient in a predetermined orbit of fixed radius. For example, the radius might be chosen as such that the majority of all patients can be scanned by the system. The shows the advantages of the invention for gamma cameras with any numbers of detectors.
    Type: Application
    Filed: June 15, 2007
    Publication date: July 1, 2010
    Applicant: ULTRASPECT LTD.
    Inventors: Israel Ohana, Shoulamit Cohen Shwartz
  • Publication number: 20090220129
    Abstract: A method for imaging, including counting quanta of energy emitted into a range of angles from particles of an energy emitter distributed over a volume (32) in a body (30), thereby generating a set of counts. The method further includes defining a probability distribution expression that specifies a local concentration of the particles of the energy emitter over the volume as a function of the set of counts, the function being defined in terms of respective coefficients of a plurality of different scales of the local concentration, including at least a first and a second scale. A dependence of the coefficients of the first scale on the coefficients of the second scale is specified, and the local concentration over the volume is computed by applying the probability distribution expression to the set of counts subject to the specified dependence.
    Type: Application
    Filed: May 1, 2006
    Publication date: September 3, 2009
    Applicant: ULTRASPECT LTD.
    Inventors: Jacob Oaknin, Shoulamit Cohen Shwartz
  • Patent number: 7233002
    Abstract: 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, which compensate for the Line Spread Function effect due to the collimator characteristics. The use of these methods enables construction of SPECT gamma cameras with a range of novel designs, having their gamma detector (or detectors) orbiting the patient in a predetermined orbit of fixed radius. For example, the radius might be chosen as such that the majority of all patients can be scanned by the system. The advantages of the invention are applicable for gamma cameras with any numbers of detectors.
    Type: Grant
    Filed: November 25, 2004
    Date of Patent: June 19, 2007
    Assignee: Ultraspect Ltd.
    Inventors: Israel Ohana, Shoulamit Cohen Shwartz
  • Patent number: 7109489
    Abstract: A method and an apparatus of obtaining and reconstructing an image of a portion of a body, administered by a radiopharmaceutical substance, by using Single-photon emission computerized tomography (SPECT) for determination of functional information thereon. The method includes acquiring gamma rays from a body by a detector, preferably with wide incident angle exceeding 5–10 degrees, and reconstructing an image of the distribution of a radiating pharmaceutical substance in the body under inspection. The relationship between the detector and the body or the examined portion thereof is generally known. By processing data from the detector while taking into consideration weight values which are functions of angles and optionally distances between different elements of the body and corresponding elements of the relative position of the body and the detector corresponding elements of this position's projection on the detector.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: September 19, 2006
    Assignee: Ultraspect Ltd.
    Inventors: Shoulamit C. Shwartz, Israel Ohana