Patents by Inventor Casey P. Johnson

Casey P. Johnson 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).

  • System and method for imbedded, high-spatial resolution, fluoroscopic tracking of multi-station, contrast-enhanced magnetic resonance angiography
    Patent number: 9700229
    Abstract: A method of producing a series of vasculature images over an extended field of view (FOV) larger than an FOV of an MRI system includes acquiring initial time-resolved image data from the vasculature and, during the acquiring process, reconstructing, in substantially real-time, a series of three-dimensional (3D) tracking images of the initial portion of the vasculature illustrating a current position of a contrast bolus in the vasculature as the contrast bolus passes through the initial portion of the vasculature. Based on a current position of the contrast bolus, the subject is moved to a subsequent imaging station to acquire subsequent time-resolved image data and reconstruct subsequent 3D tracking images of subsequent portions of the vasculature. This process is repeated and then an image is assembled that extends over the extended FOV using the initial time-resolved image data and the subsequent time-resolved image data.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: July 11, 2017
    Assignee: MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCH
    Inventors: Stephen J. Riederer, Casey P. Johnson
  • System and Method for Imbedded, High-Spatial Resolution, Fluoroscopic Tracking of Multi-Station, Contrast-Enhanced Magnetic Resonance Angiography
    Publication number: 20120253175
    Abstract: A method of producing a series of vasculature images over an extended field of view (FOV) larger than an FOV of an MRI system includes acquiring initial time-resolved image data from the vasculature and, during the acquiring process, reconstructing, in substantially real-time, a series of three-dimensional (3D) tracking images of the initial portion of the vasculature illustrating a current position of a contrast bolus in the vasculature as the contrast bolus passes through the initial portion of the vasculature. Based on a current position of the contrast bolus, the subject is moved to a subsequent imaging station to acquire subsequent time-resolved image data and reconstruct subsequent 3D tracking images of subsequent portions of the vasculature. This process is repeated and then an image is assembled that extends over the extended FOV using the initial time-resolved image data and the subsequent time-resolved image data.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 4, 2012
    Inventors: Stephen J. Riederer, Casey P. Johnson