Patents by Inventor Dimitre Hristov

Dimitre Hristov 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).

  • Publication number: 20130142310
    Abstract: Embodiments of the present invention provide methods for improved radiation treatment and imaging of solid cancers utilizing radiation beam trajectory optimization techniques to obtain conformal radiation coverage of tissue that is targeted to receive radiation, while minimizing exposure of healthy tissue and organs to harmful, unnecessary radiation.
    Type: Application
    Filed: June 6, 2012
    Publication date: June 6, 2013
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Benjamin Pooya Fahimian, Lei Xing, Sarah Geneser, Dimitre Hristov
  • Patent number: 7697662
    Abstract: A system includes delivery of treatment radiation to a target, acquisition of an image representing the treatment radiation during delivery of the treatment radiation, determination of a position of a leaf of a collimator delivery of the treatment radiation based on the image, and presentation of a notification of an error during delivery of the treatment radiation based on the determined position.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: April 13, 2010
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Jonathan S. Maltz, Dimitre Hristov Hristov
  • Patent number: 7634304
    Abstract: A method and apparatus for lesion or organ definition for the purpose of radiation treatment planning localization and treatment position verification. The apparatus uses a combination of an ultrasound imaging system and a diagnostic imaging system to acquire localization ultrasound images referenced in the coordinate space of the diagnostic imaging system through the use of a position sensing system. The method compares the location of the lesion in the localization ultrasound images with the position of the lesion in ultrasound images taken while the patient lies on the treatment table of a therapy treatment unit, suggests corrective measures to place the lesion in its intended treatment position and executes the correction upon confirmation from qualified personnel.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: December 15, 2009
    Assignee: McGill University
    Inventors: Tony Falco, Dimitre Hristov
  • Publication number: 20090275830
    Abstract: A method and apparatus for lesion or organ definition for the purpose of radiation treatment planning localization and treatment position verification. The apparatus uses a combination of an ultrasound imaging system and a diagnostic imaging system to acquire localization ultrasound images referenced in the coordinate space of the diagnostic imaging system through the use of position sensing system. The method compares the location of the lesion in the localization ultrasound images with the position of the lesion in ultrasound images taken while the patient lies on the treatment table of a therapy treatment unit, suggests corrective measures to place the lesion in its intended treatment position and executes the correction upon confirmation from qualified personnel.
    Type: Application
    Filed: June 5, 2009
    Publication date: November 5, 2009
    Inventors: Tony Falco, Dimitre Hristov
  • Patent number: 7551759
    Abstract: A system includes acquisition of a first image of a portion of a body, the first image representing the portion during a first phase of motion, acquisition of a second image of the portion of the body, the second image representing the portion during a second phase of motion, generation of a composite image based on the first image and the second image, the composite image indicating a position of a target during the first phase of motion and a position of the target during the second phase of motion, and identification of a target region based on the composite image.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: June 23, 2009
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Dimitre Hristov Hristov, Gangadharan M. Bijumon
  • Patent number: 7388976
    Abstract: A system includes acquisition of a plurality of images of a first portion of a body undergoing substantially periodic motion, each of the plurality of images associated with a respective time, determination of a correlation between at least two of the plurality of images, and determination of a period of the periodic motion based on the respective times associated with the at least two of the plurality of images.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: June 17, 2008
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Dimitre Hristov Hristov
  • Patent number: 7366336
    Abstract: A system includes acquisition of a plurality of images of a first portion of a body undergoing substantially periodic motion, acquisition of a second plurality of images of a second portion of the body, the second portion comprising a portion of the first portion, and determination of a correlation between at least one of the first plurality of images and at least one of the second plurality of images. A system may also include generation of a combined image of the first portion and the second portion based on the at least one of the first plurality of images and the at least one of the second plurality of images, the combined image corresponding to a first phase of the periodic motion.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: April 29, 2008
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Dimitre Hristov Hristov
  • Publication number: 20060122499
    Abstract: A system includes acquisition of a first image of a portion of a body, the first image representing the portion during a first phase of motion, acquisition of a second image of the portion of the body, the second image representing the portion during a second phase of motion, generation of a composite image based on the first image and the second image, the composite image indicating a position of a target during the first phase of motion and a position of the target during the second phase of motion, and identification of a target region based on the composite image.
    Type: Application
    Filed: December 7, 2004
    Publication date: June 8, 2006
    Inventors: Dimitre Hristov, Gangadharan Bijumon
  • Publication number: 20050201603
    Abstract: A system includes acquisition of a plurality of images of a first portion of a body undergoing substantially periodic motion, acquisition of a second plurality of images of a second portion of the body, the second portion comprising a portion of the first portion, and determination of a correlation between at least one of the first plurality of images and at least one of the second plurality of images. A system may also include generation of a combined image of the first portion and the second portion based on the at least one of the first plurality of images and the at least one of the second plurality of images, the combined image corresponding to a first phase of the periodic motion.
    Type: Application
    Filed: March 9, 2004
    Publication date: September 15, 2005
    Inventor: Dimitre Hristov
  • Publication number: 20050201604
    Abstract: A system includes acquisition of a plurality of images of a first portion of a body undergoing substantially periodic motion, each of the plurality of images associated with a respective time, determination of a correlation between at least two of the plurality of images, and determination of a period of the periodic motion based on the respective times associated with the at least two of the plurality of images.
    Type: Application
    Filed: March 9, 2004
    Publication date: September 15, 2005
    Inventor: Dimitre Hristov
  • Publication number: 20050116173
    Abstract: An apparatus may include a scintillator to emit light, imaging elements to capture image information based on received light, and an optical filter disposed between the scintillator and the imaging elements, wherein an opacity of the optical filter is controllable.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 2, 2005
    Inventors: Dimitre Hristov, Zirao Zheng