Patents by Inventor Christopher R. Hazard

Christopher R. Hazard 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).

  • Direct strain estimator for measuring elastic properties of tissue
    Patent number: 8100831
    Abstract: Ultrasound data of a biological tissue is acquired in a relaxed state and a tensed state. A strain is estimated directly from the relaxed state ultrasound data and the tensed state ultrasound data by way of an imaginary part of a complex correlation function. In estimating the strain, the tensed state ultrasound data is re-stretched, and the imaginary part of the complex correlation function is calculated from this re-stretched ultrasound data and the relaxed state ultrasound data. A slope factor is also calculated, and the strain is estimated from this slope factor and the imaginary part of the complex correlation function.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: January 24, 2012
    Assignee: General Electric Company
    Inventors: Karsten Hiltawsky, Christopher R. Hazard, Feng Lin
  • DIRECT STRAIN ESTIMATOR FOR MEASURING ELASTIC PROPERTIES OF TISSUE
    Publication number: 20080119732
    Abstract: Ultrasound data of a biological tissue is acquired in a relaxed state and a tensed state. A strain is estimated directly from the relaxed state ultrasound data and the tensed state ultrasound data by way of an imaginary part of a complex correlation function. In estimating the strain, the tensed state ultrasound data is re-stretched, and the imaginary part of the complex correlation function is calculated from this re-stretched ultrasound data and the relaxed state ultrasound data. A slope factor is also calculated, and the strain is estimated from this slope factor and the imaginary part of the complex correlation function.
    Type: Application
    Filed: November 22, 2006
    Publication date: May 22, 2008
    Inventors: Karsten Hiltawsky, Christopher R. Hazard, Feng Lin