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Real-time stent and balloon simulation for stenosis treatment

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Abstract

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.

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Acknowledgements

This work was partly funded by the Digital Economy program of the EPSRC, the UK Engineering and Physical Sciences Research Council.

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Authors and Affiliations

  1. Biosurgery and Surgical Technology Department, SORA, Imperial College London—St Mary’s Hospital, London, W2 1NY, UK

    Vincent Luboz, Jim Kyaw-Tun, Roger Kneebone & Fernando Bello

  2. Laboratoire TIMC, équipe GMCAO, Pavillon Taillefer, Domaine de la Merci, 38706, La Tronche, France

    Vincent Luboz

  3. International Centre for Circulatory Health, National Heart and Lung Institute, Imperial College, London, UK

    Sayan Sen

  4. Dept of Bioengineering, Imperial College London, London, SW7 2AZ, UK

    Robert Dickinson & Richard Kitney

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  1. Vincent Luboz
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  2. Jim Kyaw-Tun
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  3. Sayan Sen
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  4. Roger Kneebone
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  5. Robert Dickinson
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  6. Richard Kitney
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  7. Fernando Bello
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Correspondence to Vincent Luboz.

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Luboz, V., Kyaw-Tun, J., Sen, S. et al. Real-time stent and balloon simulation for stenosis treatment. Vis Comput 30, 341–349 (2014). https://doi.org/10.1007/s00371-013-0859-4

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  • DOI: https://doi.org/10.1007/s00371-013-0859-4

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