INCREMENTAL REAL TIME RECORDING OF TRACKED INSTRUMENTS IN TUBULAR ORGAN STRUCTURES INSIDE THE HUMAN BODY

摘要

The invention relates to a method for navigation during medical operations on tubular organ structures. Said method is characterised in that, before the operation, static image data of the tubular organ structures is recorded and stored, the images of the tubular organ structures are extracted from the image data and the course thereof is converted into a geometric description used during the medical operation for instrument/organ recording, and the instrument that is spatially localised by a tracking system is successively corrected in relation to the static data, by a transformation that is preferably defined by an optimisation method, taking into account the geometrical description and information on the current distance covered by the instrument, or vice versa, the static data is successively corrected in relation to the instrument position, and thus the position of the instrument is associated with the anatomic structures in the static image data.