Minim Invasive Neurosurg 2005; 48(2): 67-72
DOI: 10.1055/s-2004-830229
Original Article
© Georg Thieme Verlag Stuttgart · New York

Application of a Newly Developed Visual Navigation System in Humans. First Results

M.  Scholz1 , S.  Tombrock2 , W.  Konen2 , B.  Fricke3 , I.  Pechlivanis1 , M.  Engelhardt1 , K.  Schmieder1 , A.  Harders1
  • 1Department of Neurosurgery, Ruhr-University Bochum, Bochum, Germany
  • 2Center of Neuroinformatics, Bochum, Germany
  • 3Department of Neuroanatomy, Institute of Anatomy, Ruhr-University Bochum, Bochum, Germany
Further Information

Publication History

Publication Date:
24 May 2005 (online)


A visual navigation system (VN) was developed which uses intraoperatively stored endoscopic images together with their specific 3D-address. A special calibration enables one to recalculate the distortion of the endoscopic images. Several modules (e. g., landmark tracking, virtual back-movement) are offered to the neurosurgeon. The system was tested in 12 human subjects during neuroendoscopic interventions and worked without problems in nearly all cases. The possibilities of digital image navigation can be used especially for control of instrument movement in case of red-out situations or blurred vision. Many further developments of the VN system are possible in order to increase the safety of neuroendoscopic interventions.


PD Dr. med. Martin Scholz

Neurochirurgische Universitätsklinik · Knappschaftskrankenhaus

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