Surgical planning and patient-specific biomechanical simulation for tracheal endoprostheses interventions.
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.
González Ballester
Miguel A
MA
Alma IT Systems, Barcelona, Spain. Miguel.Gonzalez@alma3d.com
Pérez del Palomar
Amaya
A
López Villalobos
José Luís
JL
Rodríguez
Laura Lara
LL
Trabelsi
Olfa
O
Pérez
Frederic
F
Ginel Cañamaque
Angel
A
Cortés
Emilia Barrot
EB
Rodríguez Panadero
Francisco
F
Doblaré Castellano
Manuel
M
Herrero Jover
Javier
J
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*