Volumetric object modeling for surgical simulation

Abstract

Surgical simulation has many applications in medical education, surgical training, surgical planning, and intra-operative assistance. However, extending current surface-based computer graphics methods to model phenomena such as the deformation, cutting, tearing, or repairing of soft tissues poses significant challenges for real-time interactions. This paper discusses the use of volumetric methods for modeling complex anatomy and tissue interactions. New techniques are introduced that use volumetric methods for modeling soft tissue deformation and tissue cutting at interactive rates. An initial prototype for simulating arthroscopic knee surgery is described which uses volumetric models of the knee derived from 3D Magnetic Resonance Imaging, visual feedback via real-time volume and polygon rendering, and haptic feedback provided by a force feedback device. To be published in Journal of Medical Image Analysis, December, 1997.This work may not be copied or reproduced in whole or in part for any commercial purpose. Permission to copy i n whole or in part without payment of fee is granted for nonprofit educational and research purposes provided that all such whole or partial copies include the following: a notice that such copying is by permission of Mitsubishi Electric Research Laboratories of Cambridge, Massachusetts; an acknowledgment of the authors and individual contributions to the work; and all applicable portions of the copyright notice. Copying, reproduction, or republishing for any other purpose shall require a license with payment of fee to Mitsubishi Electric Research Laboratories. All rights reserved. Copyright © Mitsubishi Electric Information AbstractSurgical simulation has many applications in medical education, surgical training, surgical planning, and intra-operative assistance. However, extending current surfacebased computer graphics methods to model phenomena such as the deformation, cutting, tearing, or repairing of soft tissues poses significant challenges for real-time interactions. This paper discusses the use of volumetric methods for modeling complex anatomy and tissue interactions. New techniques are introduced that use volumetric methods for modeling soft tissue deformation and tissue cutting at interactive rates. An initial prototype for simulating arthroscopic knee surgery is described which uses volumetric models of the knee derived from 3D Magnetic Resonance Imaging, visual feedback via real-time volume and polygon rendering, and haptic feedback provided by a force feedback device.

Using virtual reality for medical diagnosis, training and education

“…Volumetric modelling (volume rendering) is a visualisation technique (Kaufman et al 2000(Kaufman et al , 1993aGibson 1998), where 3-D models of human organs are generated from scanned images, such as Magnetic Resonance Imaging (MRI), Computer Tomography (CT), or Positron Emission Tomography (PET) scans. These images are then displayed as high quality voxel-based 3-D volumetric models.…”

Level set modeling and segmentation of diffusion tensor magnetic resonance imaging brain data

“…19 Creating separate geometric models for each structure enables the straightforward study of the relationship between the structures, even though they come from different datasets. The models can also be used within a surgical planning/simulation/VR environment, 20 providing the shape information needed for collision detection and force calculations. The geometric models can even be used for manufacturing real physical models of the structures.…”

Eficácia do aprendizado da videoartroscopia em modelos sintéticos

“…The sparseness of specific literature for the purposes of professional education and training creates difficulty in the training process for this very specific field (2) . Many methods are used for surgical training, and these may include using cadavers (15) , animals (16,17) and/ or synthetic models (15) , as well as training using virtual software (18)(19)(20)(21)(22) . The methods for learning to perform videoarthroscopy involve high costs, because high-technology equipment needs to be used, which is generally imported: the monitor, camera, light source and optics.…”