A method to compute respiration parameters for patient-based simulators

Stud Health Technol Inform. 2012:173:529-33.


We propose a method to automatically tune a patient-based virtual environment training simulator for abdominal needle insertion. The key attributes to be customized in our framework are the elasticity of soft-tissues and the respiratory model parameters. The estimation is based on two 3D Computed Tomography (CT) scans of the same patient at two different time steps. Results are presented on four patients and show that our new method leads to better results than our previous studies with manually tuned parameters.

MeSH terms

  • Abdomen
  • Algorithms
  • Biopsy, Fine-Needle
  • Computer Simulation*
  • Humans
  • Imaging, Three-Dimensional
  • Models, Biological
  • Motion*
  • Respiration*
  • Tomography, X-Ray Computed