Patents by Inventor Sabee Molloi

Sabee Molloi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Vessel cross-sectional area measurement using CT angiography
    Patent number: 10898150
    Abstract: A method of measuring vessel cross-sectional area includes imaging the cross-sectional area of the vessel, wherein the imaging includes: a central calibration region of interest (ROI) of the vessel to obtain a true Hounsfield unit (HU); an object ROI that includes a vessel area affected by a partial volume effect to obtain an object HU; a ring ROI that is outside the object ROI to obtain a background HU; and integrating the true HU, the object HU, and the background HU to calculate the cross-sectional area.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 26, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventor: Sabee Molloi
  • Low-dose CT perfusion technique
    Patent number: 10201321
    Abstract: Methods and apparatuses are disclosed for quantifying regional organ perfusion with low radiation dose using whole-organ CT in a patient comprising obtaining a computed tomography scan of the patient and determining perfusion of the organ using a first-pass analysis method in conjunction with conservation of mass for perfusion measurement.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: February 12, 2019
    Assignee: The Regents of the University of California
    Inventor: Sabee Molloi
  • VESSEL CROSS-SECTIONAL AREA MEASUREMENT USING CT ANGIOGRAPHY
    Publication number: 20180153494
    Abstract: A method of measuring vessel cross-sectional area includes imaging the cross-sectional area of the vessel, wherein the imaging includes: a central calibration region of interest (ROI) of the vessel to obtain a true Hounsfield unit (HU); an object ROI that includes a vessel area affected by a partial volume effect to obtain an object HU; a ring ROI that is outside the object ROI to obtain a background HU; and integrating the true HU, the object HU, and the background HU to calculate the cross-sectional area.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 7, 2018
    Inventor: SABEE MOLLOI
  • LOW-DOSE CT PERFUSION TECHNIQUE
    Publication number: 20170007195
    Abstract: Methods and apparatuses are disclosed for quantifying regional organ perfusion with low radiation dose using whole-organ CT in a patient comprising obtaining a computed tomography scan of the patient and determining perfusion of the organ using a first-pass analysis method in conjunction with conservation of mass for perfusion measurement.
    Type: Application
    Filed: July 8, 2016
    Publication date: January 12, 2017
    Inventor: Sabee Molloi
  • Method and apparatus for real-time tumor tracking by detecting annihilation gamma rays from low activity position isotope fiducial markers
    Patent number: 8447387
    Abstract: Method and apparatus for real-time tracking of a target in a human body. In one embodiment of the invention, positron emission marker may be implanted into a target, the positron emission marker having a low activity positron isotope. In one embodiment, annihilation gamma rays associated with the low activity positron isotope may be detected using a plurality of position-sensitive detectors. In another embodiment, the target may be tracked in real-time based on a position of the positron emission marker.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: May 21, 2013
    Inventors: Tong Xu, Jerry Thwin Wong, Sabee Molloi
  • TiO2 Nanotube Cathode for X-Ray Generation
    Publication number: 20110280371
    Abstract: A device is provided for the generation of x-ray emission from an x-ray source based on titanium dioxide (TiO2) nanotubes grown by electrochemical oxidation. TiO2 nanotubes are used as a cold cathode in x-ray tubes.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 17, 2011
    Inventors: Sabee Molloi, Yahya Alivov
  • Method and apparatus for real-time tumor tracking
    Publication number: 20070265528
    Abstract: Method and apparatus for real-time tracking of a target in a human body. In one embodiment of the invention, positron emission marker may be implanted into a target, the positron emission marker having a low activity positron isotope. In one embodiment, annihilation gamma rays associated with the low activity positron isotope may be detected using a plurality of position-sensitive detectors. In another embodiment, the target may be tracked in real-time based on a position of the positron emission marker.
    Type: Application
    Filed: April 10, 2007
    Publication date: November 15, 2007
    Inventors: Tong Xu, Jerry Wong, Sabee Molloi
  • Automatic x-ray beam equalizer
    Patent number: 5881127
    Abstract: The present invention provides for an improved automatic x-ray beam equalizer. By analyzing an initial low dosage x-ray image of an object, an attenuation pattern can be calculated. An equalization pattern, generated from the attenuation pattern, can then be created in a mask and placed in the path of a full x-ray beam scan using a stepper motor assembly in order to properly attenuate the x-ray signal and create a clearer x-ray image of the object.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: March 9, 1999
    Assignee: The Regents of the University of California
    Inventors: Sabee Molloi, Jerry Tang
  • Automatic X-ray Beam Equalizer
    Patent number: 5778046
    Abstract: The present invention provides for an improved automatic x-ray beam equalizer. By analyzing an initial low dosage x-ray image of an object, an attenuation pattern can be calculated. An equalization pattern, generated from the attenuation pattern, can then be created in a mask and placed in the path of a full x-ray beam scan in order to properly attenuate the x-ray signal and create a clearer x-ray image of the object.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: July 7, 1998
    Assignee: The Regents of the University of California
    Inventors: Sabee Molloi, Jerry Tang