Thoracic wall reconstruction using ultrasound images to model/bend the thoracic prosthesis for correction of pectus excavatum

João Gomes Fonseca; Antonio H. J. Moreira; Pedro L. Rodrigues; Jaime C. Fonseca; A. C. M. Pinho; Jorge Correia-Pinto; Nuno F. Rodrigues; João L. Vilaça

doi:10.1117/12.911626

24 February 2012 Thoracic wall reconstruction using ultrasound images to model/bend the thoracic prosthesis for correction of pectus excavatum

João Gomes Fonseca, Antonio H. J. Moreira, Pedro L. Rodrigues, Jaime C. Fonseca, A. C. M. Pinho, Jorge Correia-Pinto, Nuno F. Rodrigues, João L. Vilaça

Author Affiliations +

Proceedings Volume 8320, Medical Imaging 2012: Ultrasonic Imaging, Tomography, and Therapy; 83200L (2012) https://doi.org/10.1117/12.911626
Event: SPIE Medical Imaging, 2012, San Diego, California, United States

Abstract

Pectus excavatum is the most common congenital deformity of the anterior thoracic wall. The surgical correction of such deformity, using Nuss procedure, consists in the placement of a personalized convex prosthesis into sub-sternal position to correct the deformity. The aim of this work is the CT-scan substitution by ultrasound imaging for the pre-operative diagnosis and pre-modeling of the prosthesis, in order to avoid patient radiation exposure. To accomplish this, ultrasound images are acquired along an axial plane, followed by a rigid registration method to obtain the spatial transformation between subsequent images. These images are overlapped to reconstruct an axial plane equivalent to a CT-slice. A phantom was used to conduct preliminary experiments and the achieved results were compared with the corresponding CT-data, showing that the proposed methodology can be capable to create a valid approximation of the anterior thoracic wall, which can be used to model/bend the prosthesis.

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João Gomes Fonseca, Antonio H. J. Moreira, Pedro L. Rodrigues, Jaime C. Fonseca, A. C. M. Pinho, Jorge Correia-Pinto, Nuno F. Rodrigues, and João L. Vilaça "Thoracic wall reconstruction using ultrasound images to model/bend the thoracic prosthesis for correction of pectus excavatum", Proc. SPIE 8320, Medical Imaging 2012: Ultrasonic Imaging, Tomography, and Therapy, 83200L (24 February 2012); https://doi.org/10.1117/12.911626

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