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

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DOIResolve DOI: http://doi.org/10.1109/TBME.2009.2032530
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TypeArticle
Journal titleIEEE Transactions on Biomedical Engineering
ISSN0018-9294
1558-2531
Volume58
Issue5
Pages11351146
SubjectX-rays; rib cage; surface topography; three-dimensional reconstruction
AbstractAmong 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.
Publication date
PublisherInstitute of Electrical and Electronics Engineers
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
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This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

NPARC number23000995
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Record identifierbd6552d3-c906-400b-b236-38920ee23320
Record created2016-11-25
Record modified2016-11-25
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