Patents by Inventor Andrew Christian Larson

Andrew Christian Larson 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 for transcatheter intra-arterial perfusion magnetic resonance imaging
    Patent number: 8103076
    Abstract: A method to serially determine changes in perfusion to tissues is provided. This method involves injecting contrast material into a catheter that is positioned in the blood supply proximal to the targeted tissue of interest, acquiring a time series of images that depicts the uptake of this contrast material within the tissue, deriving semi-quantitative or quantitative perfusion metrics based upon the time series of perfusion images, altering perfusion to the targeted tissue by means of injecting pharmacologic agents or embolic agents into the blood vessels supplying the targeted tissue, repeating the acquisition of perfusion images to serially monitor changes in tissue perfusion after each alteration, and calculating changes in perfusion metrics after each series of perfusion images. This method is used to monitor changes in perfusion to various tissues, including a diverse array of tumors.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: January 24, 2012
    Assignee: Northwestern University
    Inventors: Andrew Christian Larson, Reed Ali Omary, Dingxin Wang
  • METHOD FOR TRANSCATHETER INTRA-ARTERIAL PERFUSION MAGNETIC RESONANCE IMAGING
    Publication number: 20090116711
    Abstract: A method to serially determine changes in perfusion to tissues is provided. This method involves injecting contrast material into a catheter that is positioned in the blood supply proximal to the targeted tissue of interest, acquiring a time series of images that depicts the uptake of this contrast material within the tissue, deriving semi-quantitative or quantitative perfusion metrics based upon the time series of perfusion images, altering perfusion to the targeted tissue by means of injecting pharmacologic agents or embolic agents into the blood vessels supplying the targeted tissue, repeating the acquisition of perfusion images to serially monitor changes in tissue perfusion after each alteration, and calculating changes in perfusion metrics after each series of perfusion images. This method is used to monitor changes in perfusion to various tissues, including a diverse array of tumors.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 7, 2009
    Inventors: Andrew Christian Larson, Reed Ali Omary, Dingxin Wang