×

METHOD AND APPARATUS FOR DETERMINING ELECTRICAL PROPERTIES OF OBJECTS CONTAINING INHOMOGENEITIES

  • US 20080064981A1
  • Filed: 09/19/2007
  • Published: 03/13/2008
  • Est. Priority Date: 11/07/2002
  • Status: Abandoned Application
First Claim
Patent Images

1. A method for obtaining information indicative of an electrical characteristic of an object, the steps comprising:

  • a) applying a voltage to the surface of the object with an array of sensor elements that make electrical connection with the surface;

    b) measuring the current at each sensor element that results from the applied voltage;

    c) obtaining an image of the object and its internal structures with a second imaging modality to locate boundaries therein between structures having different electrical characteristics;

    d) computing a predicted current located at a boundary;

    e) calculating from the measured current and the predicted current located at the boundary a contrast ratio; and

    f) calculating from the first contrast ratio and known electrical characteristics of the region to one side of the located boundary, the electrical characteristics of the region to the other side of the located boundary.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×