Realtime Organ Tracking for Endoscopic Augmented Reality Visualization Using Miniature Wireless Magnetic Tracker

  • Authors:

  • Masahiko Nakamoto;Osamu Ukimura;Inderbir S. Gill;Arul Mahadevan;Tsuneharu Miki;Makoto Hashizume;Yoshinobu Sato

  • Affiliations:

  • Division of Image Analysis, Graduate School of Medicine, Osaka University, Japan;Department of Urology, Kyoto Prefectural University of Medicine, Kyoto, Japan;Cleveland Clinic, Cleveland, USA;Cleveland Clinic, Cleveland, USA;Department of Urology, Kyoto Prefectural University of Medicine, Kyoto, Japan;Graduate School of Medical Sciences, Kyushu University, Japan;Division of Image Analysis, Graduate School of Medicine, Osaka University, Japan

  • Venue:
  • MIAR '08 Proceedings of the 4th international workshop on Medical Imaging and Augmented Reality
  • Year:
  • 2008

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Abstract

Organ motion is one of the problems on augmented reality (AR) visualization for endoscopic surgical navigation system. However, the conventional optical and magnetic trackers are not suitable for tracking of internal organ motion. Recently, a wireless magnetic tracker, which is called the Calypso 4-D localization system has been developed. Since the sensor of the Calypso system is miniature and implantable, position of the internal organ can be measured directly. This paper describes AR system using the Calypso system and preliminary experiments to evaluate the AR system. We evaluated distortion error caused by the surgical instruments and misalignment error of superimposition. Results of the experiments shows potential feasibility and usefulness of AR visualization of moving organ using the Calypso system.