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A novel method for the 3-D reconstruction of scoliotic ribs from frontal and lateral radiographs

Par Conseil national de recherches du Canada

DOITrouver le DOI : https://doi.org/10.1109/TBME.2009.2032530
AuteurRechercher : ; Rechercher : ; Rechercher : ; Rechercher :
FormatTexte, Article
SujetX-rays; rib cage; surface topography; three-dimensional reconstruction
Résumé
Among the external manifestations of scoliosis, the rib hump, which is associated with the ribs' deformities and rotations, constitutes the most disturbing aspect of the scoliotic deformity for patients. A personalized 3-D model of the rib cage is important for a better evaluation of the deformity, and hence, a better treatment planning. A novel method for the 3-D reconstruction of the rib cage, based only on two standard radiographs, is proposed in this paper. For each rib, two points are extrapolated from the reconstructed spine, and three points are reconstructed by stereo radiography. The reconstruction is then refined using a surface approximation. The method was evaluated using clinical data of 13 patients with scoliosis. A comparison was conducted between the reconstructions obtained with the proposed method and those obtained by using a previous reconstruction method based on two frontal radiographs. A first comparison criterion was the distances between the reconstructed ribs and the surface topography of the trunk, considered as the reference modality. The correlation between ribs axial rotation and back surface rotation was also evaluated. The proposed method successfully reconstructed the ribs of the 6th-12th thoracic levels. The evaluation results showed that the 3-D configuration of the new rib reconstructions is more consistent with the surface topography and provides more accurate measurements of ribs axial rotation.
Date de publication
Maison d’éditionInstitute of Electrical and Electronics Engineers
Dans
  • IEEE Transactions on Biomedical Engineering 58, nº 5 : 1135–1146.
Langueanglais
Publications évaluées par des pairsOui
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Numéro NPARC23000995
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Identificateur de l’enregistrementbd6552d3-c906-400b-b236-38920ee23320
Enregistrement créé2016-11-25
Enregistrement modifié2020-04-21
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