Classification of chronic obstructive pulmonary disease based on chest radiography
Objective Quantitative analysis of chest radiographs of patients with and without chronic obstructive pulmonary disease (COPD) determining if the data obtained from such radiographic images could classify such individuals according to the presence or absence of disease. Materials and Methods For s...
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Colégio Brasileiro de Radiologia e Diagnóstico por Imagem
2013-12-01
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doaj-8a749f8abc354cd68cfd1b3d435031e42020-11-25T00:26:45ZengColégio Brasileiro de Radiologia e Diagnóstico por ImagemRadiologia Brasileira1678-70992013-12-0146632733210.1590/S0100-39842013000600003S0100-39842013000600327Classification of chronic obstructive pulmonary disease based on chest radiographyLeilane MarcosGerson Linck BichinhoEmmanuel Alvarenga PanizziKeidy Karla Goncalves StorinoDavi Carpintero PintoObjective Quantitative analysis of chest radiographs of patients with and without chronic obstructive pulmonary disease (COPD) determining if the data obtained from such radiographic images could classify such individuals according to the presence or absence of disease. Materials and Methods For such a purpose, three groups of chest radiographic images were utilized, namely: group 1, including 25 individuals with COPD; group 2, including 27 individuals without COPD; and group 3 (utilized for the reclassification /validation of the analysis), including 15 individuals with COPD. The COPD classification was based on spirometry. The variables normalized by retrosternal height were the following: pulmonary width (LARGP); levels of right (ALBDIR) and left (ALBESQ) diaphragmatic eventration; costophrenic angle (ANGCF); and right (DISDIR) and left (DISESQ) intercostal distances. Results As the radiographic images of patients with and without COPD were compared, statistically significant differences were observed between the two groups on the variables related to the diaphragm. In the COPD reclassification the following variables presented the highest indices of correct classification: ANGCF (80%), ALBDIR (73.3%), ALBESQ (86.7%). Conclusion The radiographic assessment of the chest demonstrated that the variables related to the diaphragm allow a better differentiation between individuals with and without COPD.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-39842013000600327&lng=en&tlng=enChronic obstructive pulmonary diseaseClassification of COPDChest radiography |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Leilane Marcos Gerson Linck Bichinho Emmanuel Alvarenga Panizzi Keidy Karla Goncalves Storino Davi Carpintero Pinto |
spellingShingle |
Leilane Marcos Gerson Linck Bichinho Emmanuel Alvarenga Panizzi Keidy Karla Goncalves Storino Davi Carpintero Pinto Classification of chronic obstructive pulmonary disease based on chest radiography Radiologia Brasileira Chronic obstructive pulmonary disease Classification of COPD Chest radiography |
author_facet |
Leilane Marcos Gerson Linck Bichinho Emmanuel Alvarenga Panizzi Keidy Karla Goncalves Storino Davi Carpintero Pinto |
author_sort |
Leilane Marcos |
title |
Classification of chronic obstructive pulmonary disease based on chest radiography |
title_short |
Classification of chronic obstructive pulmonary disease based on chest radiography |
title_full |
Classification of chronic obstructive pulmonary disease based on chest radiography |
title_fullStr |
Classification of chronic obstructive pulmonary disease based on chest radiography |
title_full_unstemmed |
Classification of chronic obstructive pulmonary disease based on chest radiography |
title_sort |
classification of chronic obstructive pulmonary disease based on chest radiography |
publisher |
Colégio Brasileiro de Radiologia e Diagnóstico por Imagem |
series |
Radiologia Brasileira |
issn |
1678-7099 |
publishDate |
2013-12-01 |
description |
Objective Quantitative analysis of chest radiographs of patients with and without chronic obstructive pulmonary disease (COPD) determining if the data obtained from such radiographic images could classify such individuals according to the presence or absence of disease. Materials and Methods For such a purpose, three groups of chest radiographic images were utilized, namely: group 1, including 25 individuals with COPD; group 2, including 27 individuals without COPD; and group 3 (utilized for the reclassification /validation of the analysis), including 15 individuals with COPD. The COPD classification was based on spirometry. The variables normalized by retrosternal height were the following: pulmonary width (LARGP); levels of right (ALBDIR) and left (ALBESQ) diaphragmatic eventration; costophrenic angle (ANGCF); and right (DISDIR) and left (DISESQ) intercostal distances. Results As the radiographic images of patients with and without COPD were compared, statistically significant differences were observed between the two groups on the variables related to the diaphragm. In the COPD reclassification the following variables presented the highest indices of correct classification: ANGCF (80%), ALBDIR (73.3%), ALBESQ (86.7%). Conclusion The radiographic assessment of the chest demonstrated that the variables related to the diaphragm allow a better differentiation between individuals with and without COPD. |
topic |
Chronic obstructive pulmonary disease Classification of COPD Chest radiography |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-39842013000600327&lng=en&tlng=en |
work_keys_str_mv |
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