Method, Computer Program, and System for Determining the Spatial Course of a Body, in Particular of an Electrode, on the Basis of at Least a 2D X-Ray Image of the Electrode
A method for reconstructing the spatial course of an elongate, flexible in a 3D world coordinate system, wherein the body has a plurality of x-ray markers, which are arranged on the body distanced from one another along said body, comprising: providing a 2D x-ray image of the body determining the two-dimensional positions of the x-ray markers in an image coordinate system of the 2D x-ray image determining possible 3D location coordinates of each x-ray marker in the 3D world coordinate system as beams each extending from a point of origin, which corresponds to the position of the radiation source for generation of the 2D x-ray image, to the position of the x-ray marker in question in an image coordinate plane and repeatedly determining the spatial course of the body with use of said possible 3D location coordinates. A corresponding computer program and a corresponding system are also provided.
