Patents by Inventor Erik William Chell

Erik William Chell 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).

  • Method and apparatus of stationary-source nonplanar-trajectory narrow-beam computed tomography
    Patent number: 12181424
    Abstract: Described herein are X-ray-based CT systems, specifically those with a stationary X-ray source and a moving object of interest, and methods of using the same, that address limitations in current stationary-source CT, such as scatter contamination and limited scan trajectories. The described systems include a pre-object collimator to form a narrow beam. Scatter contamination is reduced to less than 5% of acquired projections, resulting in high-quality CT images with minimal artifacts, improving diagnostic accuracy and measurement precision. The described system also allows for nonplanar trajectories, providing complete sampling of an object along multiple degrees of freedom.
    Type: Grant
    Filed: July 24, 2024
    Date of Patent: December 31, 2024
    Assignee: MALCOVA, Inc.
    Inventors: Peymon Mirsaeid Ghazi, Tara Reneé Ghazi, Michael Hyon-Min Kim, Erik William Chell
  • Methods, systems, and computer-program products to estimate scattered radiation in cone-beam computerized tomographic images and the like
    Patent number: 7336760
    Abstract: Disclosed are imaging systems, methods, and computer program products that generate estimates of scattered radiation in tomographic imaging systems, such as cone-beam computerized tomography (CBCT) systems, and the like. In an exemplary embodiment, a first group of projections is taken of an object with the radiation covering a wide band of the object, and a second group of projections is taken of the object with the radiation covering a narrower band of the object. The projections of the second group cover less of the object, but have less scattered radiation. The scattered radiation within the narrower band may be estimated from differences between projections from the first and second groups, or from representations thereof.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: February 26, 2008
    Assignee: Varian Medical Systems Technologies, Inc.
    Inventors: Gary Virshup, Roland Suri, Edward Seppi, Edward Shapiro, Josh Star-Lack, Erik William Chell
  • METHODS, SYSTEMS, AND COMPUTER-PROGRAM PRODUCTS TO ESTIMATE SCATTERED RADIATION IN CONE-BEAM COMPUTERIZED TOMOGRAPHIC IMAGES AND THE LIKE
    Publication number: 20080025458
    Abstract: Disclosed are imaging systems, methods, and computer program products that generate estimates of scattered radiation in tomographic imaging systems, such as cone-beam computerized tomography (CBCT) systems, and the like. In an exemplary embodiment, a first group of projections is taken of an object with the radiation covering a wide band of the object, and a second group of projections is taken of the object with the radiation covering a narrower band of the object. The projections of the second group cover less of the object, but have less scattered radiation. The scattered radiation within the narrower band may be estimated from differences between projections from the first and second groups, or from representations thereof.
    Type: Application
    Filed: July 28, 2006
    Publication date: January 31, 2008
    Inventors: Gary Virshup, Roland Suri, Edward Seppi, Edward Shapiro, Josh Star-Lack, Erik William Chell
  • Methods, apparatus, and software for adjusting the focal spot of an electron beam
    Patent number: 7049616
    Abstract: A method of adjusting a beam spot width includes scanning a phantom with an electron beam having a beam spot width to obtain data; and adjusting the beam spot width using the obtained data.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: May 23, 2006
    Assignee: General Electric Company
    Inventors: Souma Sengupta, Erik William Chell, Sanjay Kumar Jha
  • Methods, apparatus, and software for adjusting the focal spot of an electron beam
    Publication number: 20050253065
    Abstract: A method of adjusting a beam spot width includes scanning a phantom with an electron beam having a beam spot width to obtain data; and adjusting the beam spot width using the obtained data.
    Type: Application
    Filed: May 17, 2004
    Publication date: November 17, 2005
    Inventors: Souma Sengupta, Erik William Chell, Sanjay Jha