Patents by Inventor Alexander C. Langheinrich

Alexander C. Langheinrich 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 imaging plaque using dual energy CT
    Patent number: 8009793
    Abstract: Two x-ray CT images are acquired of arterial plaque using x-rays at two different energy levels. The reconstructed images are normalized by adjusting pixel brightness until pixels depicting a region containing calcium have substantially the same brightness. The normalized images are subtracted to produce an image that depicts iron in the arterial plaque.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: August 30, 2011
    Assignee: MAYO Foundation for Medical Education and Research
    Inventors: Alexander C. Langheinrich, Erik L. Ritman
  • Method for Imaging Plaque Using Dual Energy CT
    Publication number: 20100316274
    Abstract: Two x-ray CT images are acquired of arterial plaque using x-rays at two different energy levels. The reconstructed images are normalized by adjusting pixel brightness until pixels depicting a region containing calcium have substantially the same brightness. The normalized images are subtracted to produce an image that depicts iron in the arterial plaque.
    Type: Application
    Filed: February 20, 2007
    Publication date: December 16, 2010
    Inventors: Alexander C. Langheinrich, Erik L. Ritman