Yao, Junke;
Bosi, G;
Burriesci, G;
Wurdemann, Helge;
(2022)
Computational Analysis of Balloon Catheter Behaviour at Variable Inflation Levels.
In:
Proceedings of the 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC) 2022.
(pp. pp. 3015-3019).
Institute of Electrical and Electronics Engineers (IEEE)
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Abstract
Aortic valvuloplasty is a minimally invasive procedure for the dilatation of stenotic aortic valves. Rapid ventricular pacing is an established technique for balloon stabilization during this procedure. However, low cardiac output due to the pacing is one of the inherent risks, which is also associated with several potential complications. This paper proposes a numerical modelling approach to understand the effect of different inflation levels of a valvuloplasty balloon catheter on the positional instability caused by a pulsating blood flow. An unstretched balloon catheter model was crimped into a tri-folded configuration and inflated to several levels. Ten different inflation levels were then tested, and a Fluid-Structure Interaction model was built to solve interactions between the balloon and the blood flow modelled in an idealised aortic arch. Our computational results show that the maximum displacement of the balloon catheter increases with the inflation level, with a small step at around 50% inflation and a sharp increase after reaching 85% inflation. This work represents a substantial progress towards the use of simulations to solve the interactions between a balloon catheter and pulsating blood flow.
| Type: | Proceedings paper |
|---|---|
| Title: | Computational Analysis of Balloon Catheter Behaviour at Variable Inflation Levels |
| Event: | 44th International Engineering in Medicine and Biology Conference |
| Dates: | 11 Jul 2022 - 15 Jul 2022 |
| ISBN-13: | 978-1-7281-2782-8 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/EMBC48229.2022.9871164 |
| Publisher version: | https://doi.org/10.1109/EMBC48229.2022.9871164 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions. |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10146768 |
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