Validation of a mathematical procedure for the cobb angle assessment based on photogrammetry

Detalhes bibliográficos
Autor(a) principal: Navarro, Isis Juliene Rodrigues Leite
Data de Publicação: 2019
Outros Autores: Candotti, Cláudia Tarragô, Furlanetto, Tássia Silveira, Dutra, Vinícius Hoffmann, Amaral, Maiane Almeida do, Loss, Jefferson Fagundes
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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spelling 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
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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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