Patent ID: 7139601
Filing Date: 2006-11-21
Classification: A61B

Abstract:
1. A method for determining the geometry of a semi-rigid body element during a procedure, the method using an image data set having reference points for the body element, a relative position between said reference points of the semi-rigid body element being variable, the method comprising: identifying, during the procedure, the relative position of each of the reference points for the semi-rigid body element; deriving a transform relating the relative position of the reference points during the procedure to the relative position of the reference points in the image data set in order to determine the geometry of the body element during the procedure, said transform indicative of a difference between the relative position of each of the reference points for the semi-rigid body element during the procedure and the relative position of the reference points in the image data set; modifying the image data set based on the transform in order to generate a displaced image data set representing the geometry of the body element during the procedure; and generating a display based on the displaced image data set illustrating the geometry of the body element during the procedure.