4 March 2015 Gastrointestinal tract volume measurement method using a compound eye type endoscope
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We propose an intestine volume measurement method using a compound eye type endoscope. This method aims at assessment of the gastrointestinal function. Gastrointestinal diseases are mainly based on morphological abnormalities. However, gastrointestinal symptoms are sometimes apparent without visible abnormalities. Such diseases are called functional gastrointestinal disorder, for example, functional dyspepsia, and irritable bowel syndrome. One of the major factors for these diseases is abnormal gastrointestinal motility. For the diagnosis of the gastrointestinal tract, both aspects of organic and functional assessment is important. While endoscopic diagnosis is essential for assessment of organic abnormalities, three-dimensional information is required for assessment of the functional abnormalities. Thus, we proposed the three dimensional endoscope system using compound eye. In this study, we forces on the volume of gastrointestinal tract. The volume of the gastrointestinal tract is thought to related its function. In our system, we use a compound eye type endoscope system to obtain three-dimensional information of the tract. The volume can be calculated by integrating the slice data of the intestine tract shape using the obtained three-dimensional information. First, we evaluate the proposed method by known-shape tube. Then, we confirm that the proposed method can measure the tract volume using the tract simulated model. Our system can assess the wall of gastrointestinal tract directly in a three-dimensional manner. Our system can be used for examination of gastric morphological and functional abnormalities.
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Kayo Yoshimoto, Kayo Yoshimoto, Kenji Yamada, Kenji Yamada, Kenji Watabe, Kenji Watabe, Michiko Kido, Michiko Kido, Toshiaki Nagakura, Toshiaki Nagakura, Hideya Takahashi, Hideya Takahashi, Tsutomu Nishida, Tsutomu Nishida, Hideki Iijima, Hideki Iijima, Masahiko Tsujii, Masahiko Tsujii, Tetsuo Takehara, Tetsuo Takehara, Yuko Ohno, Yuko Ohno, "Gastrointestinal tract volume measurement method using a compound eye type endoscope", Proc. SPIE 9313, Advanced Biomedical and Clinical Diagnostic and Surgical Guidance Systems XIII, 93131I (4 March 2015); doi: 10.1117/12.2080949; https://doi.org/10.1117/12.2080949

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