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Ray-Casting-Based Evaluation Framework for Needle Insertion Force Feedback Algorithms

  • Andre MastmeyerEmail author
  • Tobias Hecht
  • Dirk Fortmeier
  • Heinz Handels
Conference paper
Part of the Informatik aktuell book series (INFORMAT)

Zusammenfassung

Segmentation of patient data often is a mandatory step for surgical simulations featuring haptic rendering. To alleviate the burden of manual segmentation we chose direct haptic volume rendering based on CT gray values and partially segmented patient data. In this study, the fields of application are lumbar puncture and spinal anesthesia. We focus on a new evaluation method driven by ray-casting to define paths from the skin to the spinal canal. In a comparison of our reference system AcusVR to a newer algorithm, force outputs are found to be similar in 99 % of the tested paths.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Andre Mastmeyer
    • 1
    Email author
  • Tobias Hecht
    • 1
  • Dirk Fortmeier
    • 1
    • 2
  • Heinz Handels
    • 1
  1. 1.Institute of Medical InformaticsUniversity of LübeckLübeckDeutschland
  2. 2.Graduate School for Computing in Medicine and Life SciencesUniversity of LübeckLübeckDeutschland

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