Interactive bone drilling using a 2D pointing device to support Microendoscopic Discectomy planning

  • Keiho ImanishiEmail author
  • Megumi Nakao
  • Masahiko Kioka
  • Masato Mori
  • Munehito Yoshida
  • Takashi Takahashi
  • Kotaro Minato
Original Article



To support preoperative planning of bone drilling for Microendoscopic Discectomy, we present a set of interactive bone-drilling methods using a general 2D pointing device.


Unlike the existing methods, our framework has the following features: (1) the user can directly cut away arbitrary 3D regions on the volumetrically rendered image, (2) in order to provide a simple interface to end-users, our algorithms make 3D drilling possible through only a general-purpose wheel mouse, (3) to reduce both over-drilling and unnatural drilling of an unintended region, we introduce a smart depth control to ensure the continuity of the cutting operation and (4) a GPU-based rendering scheme for high-quality shading of clipped boundaries.


We applied our techniques to some CT data of specific patients. Several experiments confirmed that the user was able to directly drill a 3D complex region on a volumetrically rendered lumber spine through simple mouse operation. Also, our rendering scheme clearly visualizes time-varying drilled surfaces at interactive rates. By comparing simulation results to actual postoperative CT images, we confirmed the user interactively simulates similar cutting to that carried out in real surgery.


We concluded our techniques perform mouse-based, direct drilling of complex 3D regions with high-quality rendering of drilled boundaries and contribute to preoperative planning of Microendoscopic Discectomy.


Interactive drilling Volume sculpting 2D pointing device Surgical planning 


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Copyright information

© CARS 2010

Authors and Affiliations

  • Keiho Imanishi
    • 1
    Email author
  • Megumi Nakao
    • 1
  • Masahiko Kioka
    • 2
  • Masato Mori
    • 3
  • Munehito Yoshida
    • 2
  • Takashi Takahashi
    • 4
  • Kotaro Minato
    • 1
  1. 1.Graduate School of Information ScienceNara Institute of Science and TechnologyTakayama, IkomaJapan
  2. 2.Department of Orthopaedic SurgeryWakayama Medical UniversityWakayama-cityJapan
  3. 3.Department of Radiological Technology, Faculty of Medical ScienceKyoto College of Medical ScienceNantan, KyotoJapan
  4. 4.Kyoto College of Medical ScienceNantan, KyotoJapan

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