Validation of a mathematical procedure for the cobb angle assessment based on photogrammetry
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/222282 |
Resumo: | This prospective study aimed to assess the concurrent validity and diagnostic accuracy of a mathematical procedure for measurement of the spinal inclination angle, analogous to the Cobb angle, by means of photogrammetry. Methods Sixty-one subjects (aged 7 to 18 years), male and female, underwent radiographic (Cobb angle) and photogrammetric (DIPA [Digital Image-based Postural Assessment] angle) evaluations. The measurement of spinal inclination angle obtained through photogrammetry followed the Digital Image-Based Postural Assessment software protocol. Concurrent validity was appraised using Spearman rank correlation, the coefficient of determination, the root-mean-square error, Bland-Altman plot analysis, and receiver operating characteristic analysis, adopting P ≤ .05. Results The analyses were divided according to the topography of the scoliotic curve (thoracic, lumbar, or thoracolumbar). The correlations were excellent (from 0.72 to 0.81) and significant for all the regions of the spine, and the coefficients of determination ranged between 0.75 and 0.88. The root-mean-square error was between 5° and 11°, and the mean difference was very close to 0. The area under the curve was excellent and significant, ranging between 95% and 99%. Conclusion The mathematical procedure presented is valid to evaluate the spinal inclination angle in photogrammetry, analogous to the Cobb angle in radiography. |
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Navarro, Isis Juliene Rodrigues LeiteCandotti, Cláudia TarragôFurlanetto, Tássia SilveiraDutra, Vinícius HoffmannAmaral, Maiane Almeida doLoss, Jefferson Fagundes2021-06-16T04:37:31Z20191556-3715http://hdl.handle.net/10183/222282001126331This prospective study aimed to assess the concurrent validity and diagnostic accuracy of a mathematical procedure for measurement of the spinal inclination angle, analogous to the Cobb angle, by means of photogrammetry. Methods Sixty-one subjects (aged 7 to 18 years), male and female, underwent radiographic (Cobb angle) and photogrammetric (DIPA [Digital Image-based Postural Assessment] angle) evaluations. The measurement of spinal inclination angle obtained through photogrammetry followed the Digital Image-Based Postural Assessment software protocol. Concurrent validity was appraised using Spearman rank correlation, the coefficient of determination, the root-mean-square error, Bland-Altman plot analysis, and receiver operating characteristic analysis, adopting P ≤ .05. Results The analyses were divided according to the topography of the scoliotic curve (thoracic, lumbar, or thoracolumbar). The correlations were excellent (from 0.72 to 0.81) and significant for all the regions of the spine, and the coefficients of determination ranged between 0.75 and 0.88. The root-mean-square error was between 5° and 11°, and the mean difference was very close to 0. The area under the curve was excellent and significant, ranging between 95% and 99%. Conclusion The mathematical procedure presented is valid to evaluate the spinal inclination angle in photogrammetry, analogous to the Cobb angle in radiography.application/pdfengJournal of Chiropractic Medicine. Lombard, IL. Vol. 18, n.4 (Dec. 2019), p. 270-277EscolioseFotogrametriaPostura corporalScoliosisPhotogrammetryPostureValidation of a mathematical procedure for the cobb angle assessment based on photogrammetryEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001126331.pdf.txt001126331.pdf.txtExtracted Texttext/plain27757http://www.lume.ufrgs.br/bitstream/10183/222282/2/001126331.pdf.txtaff3daf7aa6f3b7e96d645d511519e46MD52ORIGINAL001126331.pdfTexto completo (inglês)application/pdf1136206http://www.lume.ufrgs.br/bitstream/10183/222282/1/001126331.pdffcb7ef1b047ddec4c783adb0e1ad6653MD5110183/2222822021-06-26 04:44:37.375208oai:www.lume.ufrgs.br:10183/222282Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-06-26T07:44:37Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Validation of a mathematical procedure for the cobb angle assessment based on photogrammetry |
title |
Validation of a mathematical procedure for the cobb angle assessment based on photogrammetry |
spellingShingle |
Validation of a mathematical procedure for the cobb angle assessment based on photogrammetry Navarro, Isis Juliene Rodrigues Leite Escoliose Fotogrametria Postura corporal Scoliosis Photogrammetry Posture |
title_short |
Validation of a mathematical procedure for the cobb angle assessment based on photogrammetry |
title_full |
Validation of a mathematical procedure for the cobb angle assessment based on photogrammetry |
title_fullStr |
Validation of a mathematical procedure for the cobb angle assessment based on photogrammetry |
title_full_unstemmed |
Validation of a mathematical procedure for the cobb angle assessment based on photogrammetry |
title_sort |
Validation of a mathematical procedure for the cobb angle assessment based on photogrammetry |
author |
Navarro, Isis Juliene Rodrigues Leite |
author_facet |
Navarro, Isis Juliene Rodrigues Leite Candotti, Cláudia Tarragô Furlanetto, Tássia Silveira Dutra, Vinícius Hoffmann Amaral, Maiane Almeida do Loss, Jefferson Fagundes |
author_role |
author |
author2 |
Candotti, Cláudia Tarragô Furlanetto, Tássia Silveira Dutra, Vinícius Hoffmann Amaral, Maiane Almeida do Loss, Jefferson Fagundes |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Navarro, Isis Juliene Rodrigues Leite Candotti, Cláudia Tarragô Furlanetto, Tássia Silveira Dutra, Vinícius Hoffmann Amaral, Maiane Almeida do Loss, Jefferson Fagundes |
dc.subject.por.fl_str_mv |
Escoliose Fotogrametria Postura corporal |
topic |
Escoliose Fotogrametria Postura corporal Scoliosis Photogrammetry Posture |
dc.subject.eng.fl_str_mv |
Scoliosis Photogrammetry Posture |
description |
This prospective study aimed to assess the concurrent validity and diagnostic accuracy of a mathematical procedure for measurement of the spinal inclination angle, analogous to the Cobb angle, by means of photogrammetry. Methods Sixty-one subjects (aged 7 to 18 years), male and female, underwent radiographic (Cobb angle) and photogrammetric (DIPA [Digital Image-based Postural Assessment] angle) evaluations. The measurement of spinal inclination angle obtained through photogrammetry followed the Digital Image-Based Postural Assessment software protocol. Concurrent validity was appraised using Spearman rank correlation, the coefficient of determination, the root-mean-square error, Bland-Altman plot analysis, and receiver operating characteristic analysis, adopting P ≤ .05. Results The analyses were divided according to the topography of the scoliotic curve (thoracic, lumbar, or thoracolumbar). The correlations were excellent (from 0.72 to 0.81) and significant for all the regions of the spine, and the coefficients of determination ranged between 0.75 and 0.88. The root-mean-square error was between 5° and 11°, and the mean difference was very close to 0. The area under the curve was excellent and significant, ranging between 95% and 99%. Conclusion The mathematical procedure presented is valid to evaluate the spinal inclination angle in photogrammetry, analogous to the Cobb angle in radiography. |
publishDate |
2019 |
dc.date.issued.fl_str_mv |
2019 |
dc.date.accessioned.fl_str_mv |
2021-06-16T04:37:31Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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article |
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http://hdl.handle.net/10183/222282 |
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1556-3715 |
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001126331 |
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http://hdl.handle.net/10183/222282 |
dc.language.iso.fl_str_mv |
eng |
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eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of Chiropractic Medicine. Lombard, IL. Vol. 18, n.4 (Dec. 2019), p. 270-277 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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