Surgical Planning and Patient-Specific Biomechanical Simulation for Tracheal Endoprostheses Interventions

  • Authors:

  • Miguel A. González Ballester;Amaya Pérez Del Palomar;José Luís López Villalobos;Laura Lara Rodríguez;Olfa Trabelsi;Frederic Pérez;Ángel Ginel Cañamaque;Emilia Barrot Cortés;Francisco Rodríguez Panadero;Manuel Doblaré Castellano;Javier Herrero Jover

  • Affiliations:

  • Alma IT Systems, Barcelona, Spain;Group of Structural Mechanics and Material Modelling, University of Zaragoza, Spain;Medico-Surgical Dept. of Respiratory Diseases, Virgen del Rocío Hospital, Seville, Spain;Alma IT Systems, Barcelona, Spain;Group of Structural Mechanics and Material Modelling, University of Zaragoza, Spain;Alma IT Systems, Barcelona, Spain;Medico-Surgical Dept. of Respiratory Diseases, Virgen del Rocío Hospital, Seville, Spain;Medico-Surgical Dept. of Respiratory Diseases, Virgen del Rocío Hospital, Seville, Spain;Medico-Surgical Dept. of Respiratory Diseases, Virgen del Rocío Hospital, Seville, Spain;Group of Structural Mechanics and Material Modelling, University of Zaragoza, Spain;Alma IT Systems, Barcelona, Spain and Centro Médico Teknon, Barcelona, Spain

  • Venue:
  • MICCAI '09 Proceedings of the 12th International Conference on Medical Image Computing and Computer-Assisted Intervention: Part II
  • Year:
  • 2009

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Abstract

We have developed a system for computer-assisted surgical planning of tracheal surgeries. The system allows to plan the intervention based on CT images of the patient, and includes a virtual database of commercially available prostheses. Automatic segmentation of the trachea and apparent pathological structures is obtained using a modified region growing algorithm. A method for automatic adaptation of a finite element mesh allows to build a patient-specific biomechanical model for simulation of the expected performance of the implant under physiological movement (swallowing, sneezing). Laboratory experiments were performed to characterise the tissues present in the trachea, and movement models were obtained from fluoroscopic images of a patient. Results are reported on the planning and biomechanical simulation of two patients that underwent surgery at our hospital.