Real-time stent and balloon simulation for stenosis treatment
| Autor: | Robert Julian Dickinson, Roger Kneebone, Vincent Luboz, Jim Kyaw-Tun, Fernando Bello, Richard I. Kitney, Sayan Sen |
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| Rok vydání: | 2013 |
| Předmět: |
medicine.diagnostic_test
Computer science medicine.medical_treatment Stent Interventional radiology Virtual reality medicine.disease Balloon Computer Graphics and Computer-Aided Design Computer graphics Stenosis Collision response medicine Computer Vision and Pattern Recognition Software Simulation Haptic technology |
| Zdroj: | The Visual Computer. 30:341-349 |
| ISSN: | 1432-2315 0178-2789 |
| Popis: | The base of all training in interventional radiology relies on the development of the core skills in manipulating the instruments. Computer simulators are emerging to help in this task with virtual reality simulators and haptic devices. This paper extends our previous interventional radiology training framework with two new virtual instruments: a stent and a balloon, both driven by the previously existing catheters and guidewires. Both the balloon and stent are used to treat stenosis, a partial or total blockage of an artery. The inflating balloon and/or the expanding stent are used to increase and maintain the radius of the artery during the intervention. A mass---spring particle system is used to model the new instruments. This modelling allows realistic instrument behaviour in real time, even in complex vascular anatomies, because of efficient collision interactions. The collision response is based on four constraints applied to the instruments: external force, spring force, and 2D and 3D bending forces. The behaviour of our simulated instruments has been visually assessed by experienced interventional radiologists, who described it as realistic and potentially helpful for training. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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