Gastric Contraction Imaging System Using a 3-D Endoscope
This paper presents a gastric contraction imaging system for assessment of gastric motility using a 3-D endoscope. Gastrointestinal diseases are mainly based on morphological abnormalities. However, gastrointestinal symptoms are sometimes apparent without visible abnormalities. One of the major fact...
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doaj-d0fe47f263f146f68fca26e409ba4aa52021-03-29T18:38:13ZengIEEEIEEE Journal of Translational Engineering in Health and Medicine2168-23722014-01-0121810.1109/JTEHM.2014.22988526705622Gastric Contraction Imaging System Using a 3-D EndoscopeKayo Yoshimoto0Kenji Yamada1Kenji Watabe2Maki Takeda3Takahiro Nishimura4Michiko Kido5Toshiaki Nagakura6Hideya TakahashiTsutomu Nishida7Hideki Iijima8Masahiko Tsujii9Tetsuo Takehara10Yuko Ohno11Division of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, JapanDivision of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, JapanDepartment of Gastroenterology and Hepatology, Graduate School of Medicine, Osaka University, Osaka, JapanDivision of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, JapanDivision of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, JapanDivision of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, JapanDepartment of Biomedical Engineering, Graduate School of Biomedical Engineering, Osaka Electro-Communication University, Osaka, JapanDepartment of Gastroenterology and Hepatology, Graduate School of Medicine, Osaka University, Osaka, JapanDepartment of Gastroenterology and Hepatology, Graduate School of Medicine, Osaka University, Osaka, JapanDepartment of Gastroenterology and Hepatology, Graduate School of Medicine, Osaka University, Osaka, JapanDepartment of Gastroenterology and Hepatology, Graduate School of Medicine, Osaka University, Osaka, JapanDivision of Health Sciences, Graduate School of Medicine, Osaka University, Osaka, JapanThis paper presents a gastric contraction imaging system for assessment of gastric motility using a 3-D endoscope. Gastrointestinal diseases are mainly based on morphological abnormalities. However, gastrointestinal symptoms are sometimes apparent without visible abnormalities. One of the major factors for these diseases is abnormal gastrointestinal motility. For assessment of gastric motility, a gastric motility imaging system is needed. To assess the dynamic motility of the stomach, the proposed system measures 3-D gastric contractions derived from a 3-D profile of the stomach wall obtained with a developed 3-D endoscope. After obtaining contraction waves, their frequency, amplitude, and speed of propagation can be calculated using a Gaussian function. The proposed system was evaluated for 3-D measurements of several objects with known geometries. The results showed that the surface profiles could be obtained with an error of <;10% of the distance between two different points on images. Subsequently, we evaluated the validity of a prototype system using a wave simulated model. In the experiment, the amplitude and position of waves could be measured with 1-mm accuracy. The present results suggest that the proposed system can measure the speed and amplitude of contractions. This system has low invasiveness and can assess the motility of the stomach wall directly in a 3-D manner. Our method can be used for examination of gastric morphological and functional abnormalities.https://ieeexplore.ieee.org/document/6705622/Endoscopesgastric contractiongastric motilitygastroenterology |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kayo Yoshimoto Kenji Yamada Kenji Watabe Maki Takeda Takahiro Nishimura Michiko Kido Toshiaki Nagakura Hideya Takahashi Tsutomu Nishida Hideki Iijima Masahiko Tsujii Tetsuo Takehara Yuko Ohno |
spellingShingle |
Kayo Yoshimoto Kenji Yamada Kenji Watabe Maki Takeda Takahiro Nishimura Michiko Kido Toshiaki Nagakura Hideya Takahashi Tsutomu Nishida Hideki Iijima Masahiko Tsujii Tetsuo Takehara Yuko Ohno Gastric Contraction Imaging System Using a 3-D Endoscope IEEE Journal of Translational Engineering in Health and Medicine Endoscopes gastric contraction gastric motility gastroenterology |
author_facet |
Kayo Yoshimoto Kenji Yamada Kenji Watabe Maki Takeda Takahiro Nishimura Michiko Kido Toshiaki Nagakura Hideya Takahashi Tsutomu Nishida Hideki Iijima Masahiko Tsujii Tetsuo Takehara Yuko Ohno |
author_sort |
Kayo Yoshimoto |
title |
Gastric Contraction Imaging System Using a 3-D Endoscope |
title_short |
Gastric Contraction Imaging System Using a 3-D Endoscope |
title_full |
Gastric Contraction Imaging System Using a 3-D Endoscope |
title_fullStr |
Gastric Contraction Imaging System Using a 3-D Endoscope |
title_full_unstemmed |
Gastric Contraction Imaging System Using a 3-D Endoscope |
title_sort |
gastric contraction imaging system using a 3-d endoscope |
publisher |
IEEE |
series |
IEEE Journal of Translational Engineering in Health and Medicine |
issn |
2168-2372 |
publishDate |
2014-01-01 |
description |
This paper presents a gastric contraction imaging system for assessment of gastric motility using a 3-D endoscope. Gastrointestinal diseases are mainly based on morphological abnormalities. However, gastrointestinal symptoms are sometimes apparent without visible abnormalities. One of the major factors for these diseases is abnormal gastrointestinal motility. For assessment of gastric motility, a gastric motility imaging system is needed. To assess the dynamic motility of the stomach, the proposed system measures 3-D gastric contractions derived from a 3-D profile of the stomach wall obtained with a developed 3-D endoscope. After obtaining contraction waves, their frequency, amplitude, and speed of propagation can be calculated using a Gaussian function. The proposed system was evaluated for 3-D measurements of several objects with known geometries. The results showed that the surface profiles could be obtained with an error of <;10% of the distance between two different points on images. Subsequently, we evaluated the validity of a prototype system using a wave simulated model. In the experiment, the amplitude and position of waves could be measured with 1-mm accuracy. The present results suggest that the proposed system can measure the speed and amplitude of contractions. This system has low invasiveness and can assess the motility of the stomach wall directly in a 3-D manner. Our method can be used for examination of gastric morphological and functional abnormalities. |
topic |
Endoscopes gastric contraction gastric motility gastroenterology |
url |
https://ieeexplore.ieee.org/document/6705622/ |
work_keys_str_mv |
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