Gastric Contraction Imaging System Using a 3-D Endoscope
| Autor: | Kenji Yamada, Kenji Watabe, Masahiko Tsujii, Kayo Yoshimoto, Michiko Kido, Tsutomu Nishida, Maki Takeda, Tetsuo Takehara, Toshiaki Nagakura, Takahiro Nishimura, Hideki Iijima, Hideya Takahashi, Yuko Ohno |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Endoscopes
Contraction (grammar) Endoscope business.industry Stomach Computer applications to medicine. Medical informatics Biomedical Engineering Gastric motility R858-859.7 Motility gastroenterology Gastric contraction gastric contraction General Medicine Anatomy Article Amplitude medicine.anatomical_structure Medical technology Medicine gastric motility R855-855.5 business Biomedical engineering Abnormal gastrointestinal motility |
| Zdroj: | IEEE Journal of Translational Engineering in Health and Medicine, Vol 2, Pp 1-8 (2014) IEEE Journal of Translational Engineering in Health and Medicine |
| ISSN: | 2168-2372 |
| Popis: | 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 \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{upgreek} \usepackage{mathrsfs} \setlength{\oddsidemargin}{-69pt} \begin{document} }{}${ |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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