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Bildverarbeitung für die Medizin 2011 pp 164–168Cite as

Navigated and Robotized Transcranial Magnetic Stimulation based on 3D Laser Scans

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Part of the book series: Informatik aktuell ((INFORMAT))

Abstract

Navigated and robotized Transcranial Magnetic Stimulation (TMS) is advancing forward in research and treatment. MRI-scans or other medical image data are typically used as navigation source. Unfortunately, scanning time is always short and expensive. For many TMSapplications the underlying brain topology is not necessarily needed. Therefore, we generate the subject’s head contour for a precise stimulation from 3D laser scans. We use the PowerCrust algorithm generating a smooth contour from laser surface points. The mean error found was 0.289 with an RMS error of 0.358 mm and a maximum error of 0.984 mm comparing MRI-scan to laser scan for a head phantom . Currently, we are working successfully with head contours based on 3D laser scans for two ongoing TMS studies. During these TMS-experiments, the overall error found for the robotized TMS system using laser scans was < 5 mm. With new and faster laser technologies, it will be possible to use laser scans as navigation source and for direct head tracking during stimulation when scanner become real time capable.

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Author information

Authors and Affiliations

  1. Institute for Robotics and Cognitive Systems, University of Lübeck, Lübeck, Germany

    Lars Richter, Ralf Bruder & Achim Schweikard

  2. Graduate School for Computing in Medicine and Life Sciences, University of Lübeck, Lübeck, Germany

    Lars Richter

  3. Departement for Neurology, University of Lübeck, Lübeck, Germany

    Peter Trillenberg

Authors
  1. Lars Richter
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  2. Ralf Bruder
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  3. Peter Trillenberg
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  4. Achim Schweikard
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Corresponding author

Correspondence to Lars Richter .

Editor information

Editors and Affiliations

  1. , Institut für Medizinische Informatik, Universität zu Lübeck, Ratzeburger Allee 160, Lübeck, 23562, Germany

    Heinz Handels

  2. , Institut für Medizinische Informatik, Universität Lübeck, Ratzeburger Allee 160, Lübeck, 23538, Germany

    Jan Ehrhardt

  3. Inst. Medizinische Informatik, RWTH Aachen, Pauwelsstr. 30, Aachen, 52074, Germany

    Thomas M. Deserno

  4. Abt. Med./Biol.Inform./H0100, Deutsches Krebsforschungzentrum (DKFZ), Im Neuenheimer Feld 280, Heidelberg, 69120, Germany

    Hans-Peter Meinzer

  5. Charité Campus Benjamin Franklin, Inst. Medizinische Informatik,, Universitätsklinikum Berlin, Hindenburgdamm 30, Berlin, 12200, Berlin, Germany

    Thomas Tolxdorff

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© 2011 Springer-Verlag Berlin Heidelberg

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Richter, L., Bruder, R., Trillenberg, P., Schweikard, A. (2011). Navigated and Robotized Transcranial Magnetic Stimulation based on 3D Laser Scans. In: Handels, H., Ehrhardt, J., Deserno, T., Meinzer, HP., Tolxdorff, T. (eds) Bildverarbeitung für die Medizin 2011. Informatik aktuell. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-19335-4_35

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