Technical note: A novel boundary condition using contact elements for finite element based deformable image registration
Deformable image registration is an important tool for image-guided radiotherapy. Physics-model-based deformable image registration using finite element analysis is one of the methods currently being investigated. The calculation accuracy of finite element analysis is dependent on given boundary con...
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| Veröffentlicht in: | Medical physics (Lancaster) 2004-09, Vol.31 (9), p.2412-2415 |
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| creator | Zhang, Tiezhi Orton, Nigel P. Mackie, T. Rockwell Paliwal, Bhudatt R. |
| description | Deformable image registration is an important tool for image-guided radiotherapy. Physics-model-based deformable image registration using finite element analysis is one of the methods currently being investigated. The calculation accuracy of finite element analysis is dependent on given boundary conditions, which are usually based on the surface matching of the organ in two images. Such a surface matching, however, is hard to obtain from medical images. In this study, we developed a new boundary condition to circumvent the traditional difficulties. Finite element contact-impact analysis was employed to simulate the interaction between the organ of interest and the surrounding body. The displacement loading is not necessarily specified. The algorithm automatically deforms the organ model into the minimum internal energy state. The analysis was performed on CT images of the lung at two different breathing phases (exhalation and full inhalation). The result gave the displacement vector map inside the lung. Validation of the result showed satisfactory agreement in most parts of the lung. This approach is simple, operator independent and may provide improved accuracy of the prediction of organ deformation. |
| doi_str_mv | 10.1118/1.1774131 |
| format | Article |
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The analysis was performed on CT images of the lung at two different breathing phases (exhalation and full inhalation). The result gave the displacement vector map inside the lung. Validation of the result showed satisfactory agreement in most parts of the lung. This approach is simple, operator independent and may provide improved accuracy of the prediction of organ deformation.</description><identifier>ISSN: 0094-2405</identifier><identifier>EISSN: 2473-4209</identifier><identifier>DOI: 10.1118/1.1774131</identifier><identifier>PMID: 15487720</identifier><identifier>CODEN: MPHYA6</identifier><language>eng</language><publisher>United States: American Association of Physicists in Medicine</publisher><subject>Algorithms ; Anatomy ; biomechanics ; Biomedical modeling ; Boundary value problems ; boundary‐elements methods ; Computed radiography ; Computed tomography ; Computer Simulation ; computerised tomography ; Elasticity ; Finite Element Analysis ; Finite element methods ; Finite‐element and Galerkin methods ; General theory and mathematical aspects ; Hemodynamics ; Humans ; Image analysis ; image matching ; image reconstruction ; image registration ; lung ; Lung - diagnostic imaging ; Lung - physiology ; Lungs ; Mechanical and electrical properties of tissues and organs ; medical image processing ; Medical imaging ; Models, Biological ; Movement ; Ordinary and partial differential equations; boundary value problems ; physiological models ; Pneumodyamics, respiration ; pneumodynamics ; radiation therapy ; Radiographic Image Enhancement - methods ; Radiographic Image Interpretation, Computer-Assisted - methods ; Radiotherapy, Computer-Assisted - methods ; Subtraction Technique</subject><ispartof>Medical physics (Lancaster), 2004-09, Vol.31 (9), p.2412-2415</ispartof><rights>American Association of Physicists in Medicine</rights><rights>2004 American Association of Physicists in Medicine</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3561-3ddbd1ed330170737bd071bf92fb102d03d2b0cd367fc9487d8026c360b1d7073</citedby><cites>FETCH-LOGICAL-c3561-3ddbd1ed330170737bd071bf92fb102d03d2b0cd367fc9487d8026c360b1d7073</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1118%2F1.1774131$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1118%2F1.1774131$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15487720$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Tiezhi</creatorcontrib><creatorcontrib>Orton, Nigel P.</creatorcontrib><creatorcontrib>Mackie, T. Rockwell</creatorcontrib><creatorcontrib>Paliwal, Bhudatt R.</creatorcontrib><title>Technical note: A novel boundary condition using contact elements for finite element based deformable image registration</title><title>Medical physics (Lancaster)</title><addtitle>Med Phys</addtitle><description>Deformable image registration is an important tool for image-guided radiotherapy. Physics-model-based deformable image registration using finite element analysis is one of the methods currently being investigated. The calculation accuracy of finite element analysis is dependent on given boundary conditions, which are usually based on the surface matching of the organ in two images. Such a surface matching, however, is hard to obtain from medical images. In this study, we developed a new boundary condition to circumvent the traditional difficulties. Finite element contact-impact analysis was employed to simulate the interaction between the organ of interest and the surrounding body. The displacement loading is not necessarily specified. The algorithm automatically deforms the organ model into the minimum internal energy state. The analysis was performed on CT images of the lung at two different breathing phases (exhalation and full inhalation). The result gave the displacement vector map inside the lung. Validation of the result showed satisfactory agreement in most parts of the lung. This approach is simple, operator independent and may provide improved accuracy of the prediction of organ deformation.</description><subject>Algorithms</subject><subject>Anatomy</subject><subject>biomechanics</subject><subject>Biomedical modeling</subject><subject>Boundary value problems</subject><subject>boundary‐elements methods</subject><subject>Computed radiography</subject><subject>Computed tomography</subject><subject>Computer Simulation</subject><subject>computerised tomography</subject><subject>Elasticity</subject><subject>Finite Element Analysis</subject><subject>Finite element methods</subject><subject>Finite‐element and Galerkin methods</subject><subject>General theory and mathematical aspects</subject><subject>Hemodynamics</subject><subject>Humans</subject><subject>Image analysis</subject><subject>image matching</subject><subject>image reconstruction</subject><subject>image registration</subject><subject>lung</subject><subject>Lung - diagnostic imaging</subject><subject>Lung - physiology</subject><subject>Lungs</subject><subject>Mechanical and electrical properties of tissues and organs</subject><subject>medical image processing</subject><subject>Medical imaging</subject><subject>Models, Biological</subject><subject>Movement</subject><subject>Ordinary and partial differential equations; boundary value problems</subject><subject>physiological models</subject><subject>Pneumodyamics, respiration</subject><subject>pneumodynamics</subject><subject>radiation therapy</subject><subject>Radiographic Image Enhancement - methods</subject><subject>Radiographic Image Interpretation, Computer-Assisted - methods</subject><subject>Radiotherapy, Computer-Assisted - methods</subject><subject>Subtraction Technique</subject><issn>0094-2405</issn><issn>2473-4209</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kE1v1DAQhq0K1C4tB_5A5VMlkFJm4iTe9FZVfElFcCjnyB-TxSixt7ZT2H9PthsEl3Iajf34Gc_L2CuES0Rcv8VLlLJCgUdsVVZSFFUJ7TO2AmiroqygPmEvUvoBAI2o4ZidYF2tpSxhxX7dkfnunVED9yHTFb-e6wMNXIfJWxV33ARvXXbB8yk5v9n3WZnMaaCRfE68D5H3zrtMf864VokstzRfjUoPxN2oNsQjbVzKUe1tZ-x5r4ZEL5d6yr69f3d387G4_fLh0831bWFE3WAhrNUWyQoBKEEKqS1I1H1b9hqhtCBsqcFY0cjetPNWdg1lY0QDGu3-wSm7OHi3MdxPlHI3umRoGJSnMKWuaVpZV6KZwdcH0MSQUqS-28b523HXIXT7mDvslphn9nyRTnok-5dccp2B4gD8dAPtnjZ1n78uwjcHPhmXH_P57_Qn4YcQ_5FvbS9-Ax6_omw</recordid><startdate>200409</startdate><enddate>200409</enddate><creator>Zhang, Tiezhi</creator><creator>Orton, Nigel P.</creator><creator>Mackie, T. Rockwell</creator><creator>Paliwal, Bhudatt R.</creator><general>American Association of Physicists in Medicine</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>200409</creationdate><title>Technical note: A novel boundary condition using contact elements for finite element based deformable image registration</title><author>Zhang, Tiezhi ; Orton, Nigel P. ; Mackie, T. Rockwell ; Paliwal, Bhudatt R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3561-3ddbd1ed330170737bd071bf92fb102d03d2b0cd367fc9487d8026c360b1d7073</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Algorithms</topic><topic>Anatomy</topic><topic>biomechanics</topic><topic>Biomedical modeling</topic><topic>Boundary value problems</topic><topic>boundary‐elements methods</topic><topic>Computed radiography</topic><topic>Computed tomography</topic><topic>Computer Simulation</topic><topic>computerised tomography</topic><topic>Elasticity</topic><topic>Finite Element Analysis</topic><topic>Finite element methods</topic><topic>Finite‐element and Galerkin methods</topic><topic>General theory and mathematical aspects</topic><topic>Hemodynamics</topic><topic>Humans</topic><topic>Image analysis</topic><topic>image matching</topic><topic>image reconstruction</topic><topic>image registration</topic><topic>lung</topic><topic>Lung - diagnostic imaging</topic><topic>Lung - physiology</topic><topic>Lungs</topic><topic>Mechanical and electrical properties of tissues and organs</topic><topic>medical image processing</topic><topic>Medical imaging</topic><topic>Models, Biological</topic><topic>Movement</topic><topic>Ordinary and partial differential equations; boundary value problems</topic><topic>physiological models</topic><topic>Pneumodyamics, respiration</topic><topic>pneumodynamics</topic><topic>radiation therapy</topic><topic>Radiographic Image Enhancement - methods</topic><topic>Radiographic Image Interpretation, Computer-Assisted - methods</topic><topic>Radiotherapy, Computer-Assisted - methods</topic><topic>Subtraction Technique</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Tiezhi</creatorcontrib><creatorcontrib>Orton, Nigel P.</creatorcontrib><creatorcontrib>Mackie, T. 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Rockwell</au><au>Paliwal, Bhudatt R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Technical note: A novel boundary condition using contact elements for finite element based deformable image registration</atitle><jtitle>Medical physics (Lancaster)</jtitle><addtitle>Med Phys</addtitle><date>2004-09</date><risdate>2004</risdate><volume>31</volume><issue>9</issue><spage>2412</spage><epage>2415</epage><pages>2412-2415</pages><issn>0094-2405</issn><eissn>2473-4209</eissn><coden>MPHYA6</coden><abstract>Deformable image registration is an important tool for image-guided radiotherapy. Physics-model-based deformable image registration using finite element analysis is one of the methods currently being investigated. The calculation accuracy of finite element analysis is dependent on given boundary conditions, which are usually based on the surface matching of the organ in two images. Such a surface matching, however, is hard to obtain from medical images. In this study, we developed a new boundary condition to circumvent the traditional difficulties. Finite element contact-impact analysis was employed to simulate the interaction between the organ of interest and the surrounding body. The displacement loading is not necessarily specified. The algorithm automatically deforms the organ model into the minimum internal energy state. The analysis was performed on CT images of the lung at two different breathing phases (exhalation and full inhalation). The result gave the displacement vector map inside the lung. Validation of the result showed satisfactory agreement in most parts of the lung. This approach is simple, operator independent and may provide improved accuracy of the prediction of organ deformation.</abstract><cop>United States</cop><pub>American Association of Physicists in Medicine</pub><pmid>15487720</pmid><doi>10.1118/1.1774131</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Algorithms Anatomy biomechanics Biomedical modeling Boundary value problems boundary‐elements methods Computed radiography Computed tomography Computer Simulation computerised tomography Elasticity Finite Element Analysis Finite element methods Finite‐element and Galerkin methods General theory and mathematical aspects Hemodynamics Humans Image analysis image matching image reconstruction image registration lung Lung - diagnostic imaging Lung - physiology Lungs Mechanical and electrical properties of tissues and organs medical image processing Medical imaging Models, Biological Movement Ordinary and partial differential equations boundary value problems physiological models Pneumodyamics, respiration pneumodynamics radiation therapy Radiographic Image Enhancement - methods Radiographic Image Interpretation, Computer-Assisted - methods Radiotherapy, Computer-Assisted - methods Subtraction Technique |
| title | Technical note: A novel boundary condition using contact elements for finite element based deformable image registration |
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