Patents by Inventor John Londt

John Londt 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: 20210093277
    Abstract: Methods and systems are provided for generating a diagnostic cardiac image using a CT system without ECG gating techniques. In one example, a method for an imaging system includes determining a scanning duration for scanning a heart of a patient with the imaging system based on a heart rate of the patient, scanning the patient with the imaging system for the scanning duration, the scanning commenced independent of a current phase of a cardiac cycle of the heart of the patient, and reconstructing an image from data acquired during the scanning.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 1, 2021
    Inventors: John Irvin Jackson, John Londt, Darin Robert Okerlund
  • Publication number: 20190370956
    Abstract: An imaging system and method acquires non-contrast images of a region of interest in a body and determines an entrance criterion based on the non-contrast images. The entrance criterion dictates conditions in which to begin acquiring contrast imaging exposures of the region of interest. An amount of a contrast agent is measured in one or more locations in the imaged body subsequent to acquiring the non-contrast images. The system and method determine that the one or more conditions of the entrance criterion are met based on the amount of the contrast agent that is measured in the imaged body, and acquire one or more contrast images of the region of interest in the imaged body responsive to determining that the one or more conditions of the entrance criterion are met.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 5, 2019
    Inventors: John Irvin Jackson, Amy Deubig, John Londt, Christine Carol Hammond, Scott McOlash, Vignesha Ramegowda
  • Patent number: 10475216
    Abstract: An imaging system determines a heart rate of a patient, a cardiac disease state, and/or a target cardiac anatomy of the patient. The system calculates an image acquisition time range from a patient population model using the heart rate, the cardiac disease state, and/or the target anatomy. The model represents relationships between cardiac motion of other patients and time or cardiac phases of the other patients. The system also determines imaging settings to acquire image data of the target anatomy during the image acquisition time range that is calculated. Imaging the target anatomy of the patient according to the imaging settings generates image data of the target anatomy having less cardiac motion and/or a reduced image acquisition time range relative to determining the imaging settings without using the patient population model.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: November 12, 2019
    Assignee: General Electric Company
    Inventors: John Irvin Jackson, John Londt, Eric Gros, Dave Chevalier
  • Publication number: 20190266760
    Abstract: An imaging system determines a heart rate of a patient, a cardiac disease state, and/or a target cardiac anatomy of the patient. The system calculates an image acquisition time range from a patient population model using the heart rate, the cardiac disease state, and/or the target anatomy. The model represents relationships between cardiac motion of other patients and time or cardiac phases of the other patients. The system also determines imaging settings to acquire image data of the target anatomy during the image acquisition time range that is calculated. Imaging the target anatomy of the patient according to the imaging settings generates image data of the target anatomy having less cardiac motion and/or a reduced image acquisition time range relative to determining the imaging settings without using the patient population model.
    Type: Application
    Filed: February 26, 2018
    Publication date: August 29, 2019
    Inventors: John Irvin Jackson, John Londt, Eric Gros, Dave Chevalier
  • Publication number: 20190231296
    Abstract: Methods and systems are provided for adjusting medical imaging parameters based on imaging parameters used during a previous imaging session. In one embodiment, a method for a computed tomography (CT) system includes reducing a radiation level of at least one CT scan of one or more successive CT scans performed on a patient based on CT scan information obtained from a previous CT scan performed on the patient, the radiation level reduced relative to a radiation level of the previous CT scan.
    Type: Application
    Filed: January 26, 2018
    Publication date: August 1, 2019
    Inventors: John Irvin Jackson, Dominic Joseph Crotty, Franco Rupcich, John Londt, Mark Vincent Profio, Darin Robert Okerlund
  • Patent number: 10265044
    Abstract: A system includes an imaging acquisition unit, a reconstruction unit, and a determination system. The imaging acquisition unit is configured to perform a scan to acquire imaging information of a patient. The reconstruction unit is configured to reconstruct an image using the imaging information. The determination system is communicatively coupled to the imaging acquisition unit and the reconstruction unit. The determination system includes at least one processor configured to: acquire performance information corresponding to the scan; determine a scan quality for the scan based on the performance information; determine an update to a protocol used to at least one of acquire the imaging information or reconstruct the image; and provide control information to at least one of the imaging acquisition unit or the reconstruction unit to implement the determined update for at least one of performing a subsequent scan or reconstructing a subsequent image.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: April 23, 2019
    Assignee: General Electric Company
    Inventors: Mark Vincent Profio, John Londt, Darin Okerlund, John Irvin Jackson
  • Publication number: 20180061045
    Abstract: A system includes an imaging acquisition unit, a reconstruction unit, and a determination system. The imaging acquisition unit is configured to perform a scan to acquire imaging information of a patient. The reconstruction unit is configured to reconstruct an image using the imaging information. The determination system is communicatively coupled to the imaging acquisition unit and the reconstruction unit. The determination system includes at least one processor configured to: acquire performance information corresponding to the scan; determine a scan quality for the scan based on the performance information; determine an update to a protocol used to at least one of acquire the imaging information or reconstruct the image; and provide control information to at least one of the imaging acquisition unit or the reconstruction unit to implement the determined update for at least one of performing a subsequent scan or reconstructing a subsequent image.
    Type: Application
    Filed: August 31, 2016
    Publication date: March 1, 2018
    Inventors: Mark Vincent Profio, John Londt, Darin Okerlund, John Irvin Jackson
  • Patent number: 9710918
    Abstract: A system and method for an image reconstruction user interface is provided. An imaging system may be used to scan a subject and provide reconstructed images of the subject. Reconstructed images may be output to a display, printer, network, and/or memory storage device. To view information and select options for image reconstruction, a visualization system and method is utilized.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: July 18, 2017
    Assignee: General Electric Company
    Inventors: Elizabeth Nett, John Londt, Scott Slavic, Bradley Gabrielse, John Jackson, Mark Profio
  • Publication number: 20170046850
    Abstract: A system and method for an image reconstruction user interface is provided. An imaging system may be used to scan a subject and provide reconstructed images of the subject. Reconstructed images may be output to a display, printer, network, and/or memory storage device. To view information and select options for image reconstruction, a visualization system and method is utilized.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 16, 2017
    Inventors: Elizabeth Nett, John Londt, Scott Slavic, Bradley Gabrielse, John Jackson, Mark Profio
  • Publication number: 20080063137
    Abstract: A CT imaging system includes a gantry and a table in a movable relationship with the gantry. The CT imaging system also includes a controller configured to control relative movement between a subject disposed on the table and the gantry from a first data acquisition position to a second data acquisition position. The controller is also configured to determine a total scan time based on a first time for acquiring imaging data at the first data acquisition position and a second time for transitioning from the first data acquisition position to the second data acquisition position. The controller is also configured to disable data acquisition in an immediately subsequent cardiac cycle and re-enable data acquisition in the cardiac cycle following the immediately subsequent cardiac cycle if the total scan time exceeds one cardiac cycle of the subject. A method of CT imaging is also disclosed.
    Type: Application
    Filed: November 16, 2007
    Publication date: March 13, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jiang Hsieh, Jianying Li, Melissa Vass, Xiangyang Tang, Darin Okerlund, Bernice Hoppel, Kelly Mohr, John Londt
  • Publication number: 20080049890
    Abstract: The present invention is directed to a method and system of controlling rotation of a gantry to rotate at a rotational speed such that a desired relationship between center projection angles of neighboring partial scans is maintained.
    Type: Application
    Filed: October 24, 2007
    Publication date: February 28, 2008
    Inventors: Jiang Hsieh, Jianying Li, John Londt, Melissa Vass, Darin Okerlund, Bernice Hoppel
  • Publication number: 20070140535
    Abstract: A method for combining images acquired using helical half-scan imaging comprises identifying an image plane within an overlap region comprising data from first and second view streams representative of first and second cycles of acquired image data. The image plane comprises the same anatomical structure. First and second weighting functions are calculated for first and second images based on first and second tube positions of an x-ray tube. The first and second images correspond to the image plane and are from the first and second view streams, respectively. The first and second tube positions also correspond to the image plane. A weighted image is then formed based on the first and second weighting functions and the first and second images.
    Type: Application
    Filed: December 19, 2005
    Publication date: June 21, 2007
    Inventors: Jianying Li, Jiang Hsieh, Melissa Vass, Xiangyang Tang, John Londt, Darin Okerlund
  • Publication number: 20070127797
    Abstract: Methods and systems for generating computed tomographic (CT) images from image data acquired during different biological cycles are provided. A computer is programmed to receive a plurality of scan data acquired during a gated acquisition window of each of a plurality of biological cycles, blend the scan data acquired during a first of the plurality of biological cycles with the scan data acquired during a second of the plurality of biological cycles, and construct a final image from the blended data.
    Type: Application
    Filed: November 23, 2005
    Publication date: June 7, 2007
    Inventors: Elisabeth Angelos, Sandeep Dutta, Jianying Li, John Londt, Melissa Vass, Xiangyang Tang, Darin Okerlund, Jiang Hsieh
  • Publication number: 20060274878
    Abstract: The present invention is directed to a method and system of controlling rotation of a gantry to rotate at a rotational speed such that a desired relationship between center projection angles of neighboring partial scans is maintained.
    Type: Application
    Filed: June 6, 2005
    Publication date: December 7, 2006
    Inventors: Jiang Hsieh, Jianying Li, John Londt, Melissa Vass, Darin Okerlund, Bernice Hoppel
  • Publication number: 20060264749
    Abstract: A method for operating a plurality of user interfaces coupled to a plurality of medical devices through a communication network is provided. The method includes performing medical diagnostics on a patient using at least two of the plurality of medical devices, wherein the user interface is configured to control the at least two of the plurality of medical devices, and displaying a result of the medical diagnostics on at least one of the plurality of user interfaces.
    Type: Application
    Filed: November 25, 2005
    Publication date: November 23, 2006
    Inventors: Allison Weiner, Robert Senzig, Steve Woloschek, Amanta Mazumdar, Regan Fields, John Londt, Melissa Vass, Joe Hogan, Rick Avila, Anne Conry
  • Patent number: 6865250
    Abstract: A method for image reconstruction and reducing patient dose, and an imaging system for accomplishing these methods, includes selecting a primary phase of a cardiac cycle and calculating compromised phase regions based on a selected compromised phase value. If the image position is located within the primary phase, then an image is generated at the primary phase. If the image position is not located within the primary phase, but is located within a compromised phase region, then an image is generated at the compromised phase region.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: March 8, 2005
    Assignee: GE Medical Systems Global Technology Company LLC
    Inventors: John Londt, Darin Okerlund, Tin-Su Pan
  • Publication number: 20040120446
    Abstract: A method for image reconstruction and reducing patient dose, and an imaging system for accomplishing these methods, includes selecting a primary phase of a cardiac cycle and calculating compromised phase regions based on a selected compromised phase value. If the image position is located within the primary phase, then an image is generated at the primary phase. If the image position is not located within the primary phase, but is located within a compromised phase region, then an image is generated at the compromised phase region.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Inventors: John Londt, Darin Okerlund, Tin-Su Pan