Development of a navigation-based CAD system for colon

  • Authors:

  • Masahiro Oda;Takayuki Kitasaka;Yuichiro Hayashi;Kensaku Mori;Yasuhito Suenaga;Jun-ichiro Toriwaki

  • Affiliations:

  • Graduate School of Information Science, Nagoya University, Nagoya, Aichi, Japan;Graduate School of Information Science, Nagoya University, Nagoya, Aichi, Japan;Graduate School of Information Science, Nagoya University, Nagoya, Aichi, Japan;Graduate School of Information Science, Nagoya University, Nagoya, Aichi, Japan;Graduate School of Information Science, Nagoya University, Nagoya, Aichi, Japan;School of Life System Science and Technology, Chukyo University, Toyota, Aichi, Japan

  • Venue:
  • MICCAI'05 Proceedings of the 8th international conference on Medical Image Computing and Computer-Assisted Intervention - Volume Part I
  • Year:
  • 2005

  • Virtual colon flattening

    EGVISSYM'01 Proceedings of the 3rd Joint Eurographics - IEEE TCVG conference on Visualization

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Abstract

We propose a navigation-based computer aided diagnosis (CAD) system for the colon. When diagnosing the colon using virtual colonoscopy (VC), a physician makes a diagnosis by navigating (flying-through) the colon. However, the viewpoints and the viewing directions must be changed many times because the colon is a very long and winding organ with many folds. This is a time-consuming task for physicians. We propose a new navigation-based CAD system for the colon providing virtual unfolded (VU) views, which enables physicians to observe a large area of the colonic wall at a glance. This system generates VU, VC, and CT slice views that are perfectly synchronized. Polyp candidates, which are detected automatically, are overlaid on them. We applied the system to abdominal CT images. The experimental results showed that the system effectively generates VU views for observing colon regions.