Spherical indentation of lungs: Experiments, modeling and sub-surface imaging
Knowledge of mechanics in atelectasis (alveolar collapse) and reinflation would be useful during anesthesia and critical care. Here an investigation is presented in which atelectasis is induced in a controlled manner on excised inflated lungs using spherical indentation, and noninvasive imaging of t...
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| Veröffentlicht in: | Journal of materials research 2009-03, Vol.24 (3), p.1156-1166 |
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| container_title | Journal of materials research |
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| creator | Silva, Maricris R. Yuan, Zhijia Kim, Jae Hun Wang, Zhenguo Hoyos, Melissa Pan, Yingtian Gouldstone, Andrew |
| description | Knowledge of mechanics in atelectasis (alveolar collapse) and reinflation would be useful during anesthesia and critical care. Here an investigation is presented in which atelectasis is induced in a controlled manner on excised inflated lungs using spherical indentation, and noninvasive imaging of the deformed subsurface region is performed using optical coherence tomography (OCT). Indentation loads are physiologic, and spatial dimensions are far larger than alveolar size to allow continuum discussions. Experimental observations of atelectasis are compared with finite element model calculations of maximum stresses. Finally, atelectasis is compared during inflation of lungs with different gases (e.g., air, oxygen/anesthesia mixture). |
| doi_str_mv | 10.1557/jmr.2009.0148 |
| format | Article |
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Finally, atelectasis is compared during inflation of lungs with different gases (e.g., air, oxygen/anesthesia mixture).</description><subject>Applied and Technical Physics</subject><subject>Biological</subject><subject>Biomaterials</subject><subject>Hardness</subject><subject>Inorganic Chemistry</subject><subject>Materials Engineering</subject><subject>Materials Science</subject><subject>Nanotechnology</subject><subject>Optical</subject><issn>0884-2914</issn><issn>2044-5326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkL1PwzAQxS0EEqUwsmdiIqnjj9hhg9IWpFYIAQuL5SSXkJI4xU6k8t_jqhUbYjrp7nd37z2ELmMcxZyLybq1EcE4jXDM5BEaEcxYyClJjtEIS8lCksbsFJ05t8Y45liwEVq9bD7A1rlugtoUYHrd150JujJoBlO5m2C23fh56yfuOmi7ApraVIE2ReCGLHSDLXUOQd3qyvfP0UmpGwcXhzpGb_PZ6_QhXD4tHqe3yzCnkvchcGBYUErLXJREYspiQQqgHGia8UJzkcus0CmRGZGlV655yiRNqNQgBE7pGF3t725s9zWA61VbuxyaRhvoBqco9e44wR4M92BuO-cslGrjzWj7rWKsdqEpH5rahaZ2oXk-2vPOc6YCq9bdYI338ufC4UHtetj-Xtf2UyWCCq6SxbO6w_Fc0NW9evf85CBIt5mtiwr--_ADI1mM_A</recordid><startdate>20090301</startdate><enddate>20090301</enddate><creator>Silva, Maricris R.</creator><creator>Yuan, Zhijia</creator><creator>Kim, Jae Hun</creator><creator>Wang, Zhenguo</creator><creator>Hoyos, Melissa</creator><creator>Pan, Yingtian</creator><creator>Gouldstone, Andrew</creator><general>Cambridge University Press</general><general>Springer International Publishing</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20090301</creationdate><title>Spherical indentation of lungs: Experiments, modeling and sub-surface imaging</title><author>Silva, Maricris R. ; Yuan, Zhijia ; Kim, Jae Hun ; Wang, Zhenguo ; Hoyos, Melissa ; Pan, Yingtian ; Gouldstone, Andrew</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c385t-e5e407333fc7f28034172de35e39b5da57c8bda928b28f884a59483638ae77093</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied and Technical Physics</topic><topic>Biological</topic><topic>Biomaterials</topic><topic>Hardness</topic><topic>Inorganic Chemistry</topic><topic>Materials Engineering</topic><topic>Materials Science</topic><topic>Nanotechnology</topic><topic>Optical</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Silva, Maricris R.</creatorcontrib><creatorcontrib>Yuan, Zhijia</creatorcontrib><creatorcontrib>Kim, Jae Hun</creatorcontrib><creatorcontrib>Wang, Zhenguo</creatorcontrib><creatorcontrib>Hoyos, Melissa</creatorcontrib><creatorcontrib>Pan, Yingtian</creatorcontrib><creatorcontrib>Gouldstone, Andrew</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of materials research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Silva, Maricris R.</au><au>Yuan, Zhijia</au><au>Kim, Jae Hun</au><au>Wang, Zhenguo</au><au>Hoyos, Melissa</au><au>Pan, Yingtian</au><au>Gouldstone, Andrew</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spherical indentation of lungs: Experiments, modeling and sub-surface imaging</atitle><jtitle>Journal of materials research</jtitle><stitle>Journal of Materials Research</stitle><addtitle>J. Mater. Res</addtitle><date>2009-03-01</date><risdate>2009</risdate><volume>24</volume><issue>3</issue><spage>1156</spage><epage>1166</epage><pages>1156-1166</pages><issn>0884-2914</issn><eissn>2044-5326</eissn><abstract>Knowledge of mechanics in atelectasis (alveolar collapse) and reinflation would be useful during anesthesia and critical care. Here an investigation is presented in which atelectasis is induced in a controlled manner on excised inflated lungs using spherical indentation, and noninvasive imaging of the deformed subsurface region is performed using optical coherence tomography (OCT). Indentation loads are physiologic, and spatial dimensions are far larger than alveolar size to allow continuum discussions. Experimental observations of atelectasis are compared with finite element model calculations of maximum stresses. 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| ispartof | Journal of materials research, 2009-03, Vol.24 (3), p.1156-1166 |
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| language | eng |
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| subjects | Applied and Technical Physics Biological Biomaterials Hardness Inorganic Chemistry Materials Engineering Materials Science Nanotechnology Optical |
| title | Spherical indentation of lungs: Experiments, modeling and sub-surface imaging |
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