| Regional surface geometry of the rat stomach based on three-dimensional curvature analysis. | |
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MedLine Citation:
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PMID: 15742941 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A better understanding of gastric accommodation and gastric perception requires knowledge of regional gastric geometry and local gastric tension throughout the stomach. An analytic method based on medical imaging data was developed in this study to describe the three-dimensional (3D) rat stomach geometry and tension distribution. The surface principal radii of curvatures were simulated and the surface tension was calculated in the glandular and non-glandular region of the stomach at pressures from 0 Pa to 800 Pa. The radii of curvature and tension distribution in the stomach were non-homogeneous. The radii of curvature in the glandular stomach were larger than those in the non-glandular region at pressures less than 100 Pa (P < 0.001). When the pressure increased to more than 200 Pa, the radii of curvature in the non-glandular stomach was larger than in the glandular stomach (P < 0.05). The curvature and tension distribution mapping using medical imaging technology and 3D models can be used to characterize and distinguish the physical behaviour in separate regions of the stomach. |
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Authors:
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Donghua Liao; Jingbo Zhao; Hans Gregersen |
Publication Detail:
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Type: Comparative Study; Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't; Validation Studies |
Journal Detail:
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Title: Physics in medicine and biology Volume: 50 ISSN: 0031-9155 ISO Abbreviation: Phys Med Biol Publication Date: 2005 Jan |
Date Detail:
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Created Date: 2005-03-03 Completed Date: 2005-05-31 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0401220 Medline TA: Phys Med Biol Country: England |
Other Details:
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Languages: eng Pagination: 231-46 Citation Subset: IM |
Affiliation:
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Center of Excellence in Visceral Biomechanics and Pain, Aalborg Hospital, DK-9100 Aalborg, Denmark. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Anatomy, Cross-Sectional
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methods* Animals Computer Simulation Elasticity Image Interpretation, Computer-Assisted / methods* Imaging, Three-Dimensional / methods* Models, Biological* Rats Rats, Wistar Stomach / anatomy & histology, physiology*, ultrasonography* Stress, Mechanical Tensile Strength |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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