title: Surgical planning and patient-specific biomechanical simulation for tracheal endoprostheses interventions.
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.
authors.affiliation: Alma IT Systems, Barcelona, Spain. Miguel.Gonzalez@alma3d.com
authors.forename: Miguel A
authors.initials: MA
authors.lastname: González Ballester
authors.forename: Amaya
authors.initials: A
authors.lastname: Pérez del Palomar
authors.forename: José Luís
authors.initials: JL
authors.lastname: López Villalobos
authors.forename: Laura Lara
authors.initials: LL
authors.lastname: Rodríguez
authors.forename: Olfa
authors.initials: O
authors.lastname: Trabelsi
authors.forename: Frederic
authors.initials: F
authors.lastname: Pérez
authors.forename: Angel
authors.initials: A
authors.lastname: Ginel Cañamaque
authors.forename: Emilia Barrot
authors.initials: EB
authors.lastname: Cortés
authors.forename: Francisco
authors.initials: F
authors.lastname: Rodríguez Panadero
authors.forename: Manuel
authors.initials: M
authors.lastname: Doblaré Castellano
authors.forename: Javier
authors.initials: J
authors.lastname: Herrero Jover
mesh_terms: D003198:Computer Simulation; D006801:Humans; D008954:Models, Biological; D011300:Preoperative Care / Q000379:methods; D019736:Prostheses and Implants; D025321:Surgery, Computer-Assisted / Q000379:methods*; D014132:Trachea / Q000503:physiopathology* / Q000601:surgery*