Automatic Modeling of an Orthotic Bracing for Nonoperative Correction of Pectus Carinatum

João L. Vilaça, Pedro L. Rodrigues, António H. J. Moreira, João Gomes Fonseca, A. C. M. Pinho, Jaime C. Fonseca, Nuno Rodrigues

2013

Abstract

Pectus Carinatum is a deformity of the chest wall, characterized by an anterior protrusion of the sternum, often corrected surgically due to cosmetic motivation. This work presents an alternative approach to the current open surgery option, proposing a novel technique based on a personalized orthosis. Two different processes for the orthosis’ personalization are presented. One based on a 3D laser scan of the patient chest, followed by the reconstruction of the thoracic wall mesh using a radial basis function, and a second one, based on a computer tomography scan followed by a neighbouring cells algorithm. The axial position where the orthosis is to be located is automatically calculated using a Ray-Triangle intersection method, whose outcome is input to a pseudo Kochenek interpolating spline method to define the orthosis curvature. Results show that no significant differences exist between the patient chest physiognomy and the curvature angle and size of the orthosis, allowing a better cosmetic outcome and less initial discomfort.

Paper Citation

in Harvard Style

L. Vilaça J., L. Rodrigues P., H. J. Moreira A., Gomes Fonseca J., C. M. Pinho A., C. Fonseca J. and Rodrigues N. (2013). Automatic Modeling of an Orthotic Bracing for Nonoperative Correction of Pectus Carinatum . In Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2013) ISBN 978-989-8565-48-8, pages 71-74. DOI: 10.5220/0004221100710074

in Bibtex Style

@conference{visapp13,
author={João L. Vilaça and Pedro L. Rodrigues and António H. J. Moreira and João Gomes Fonseca and A. C. M. Pinho and Jaime C. Fonseca and Nuno Rodrigues},
title={Automatic Modeling of an Orthotic Bracing for Nonoperative Correction of Pectus Carinatum},
booktitle={Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2013)},
year={2013},
pages={71-74},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004221100710074},
isbn={978-989-8565-48-8},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2013)
TI - Automatic Modeling of an Orthotic Bracing for Nonoperative Correction of Pectus Carinatum
SN - 978-989-8565-48-8
AU - L. Vilaça J.
AU - L. Rodrigues P.
AU - H. J. Moreira A.
AU - Gomes Fonseca J.
AU - C. M. Pinho A.
AU - C. Fonseca J.
AU - Rodrigues N.
PY - 2013
SP - 71
EP - 74
DO - 10.5220/0004221100710074