Method and device for determining the current position of the structure of an object under investigation in a coordinates reference system

摘要

The method involves determining co-ordinates of an object (1) under investigation in an MG co-ordinate system, and presetting a reference position of a structure within the object. A relative position and orientation of a computer-tomography co-ordinate system and the MG co-ordinate system are controlled using a measurement accomplished by a co-ordinate measuring device such that the structure is arranged in an area of the object, where the area is detected and displayed by the computer tomography. An independent claim is also included for a device for determining an actual position of a structure of an object under investigation in a co-ordinate system.