The University of Southampton
University of Southampton Institutional Repository

Prediction of far-field acoustic emissions from cavitation clouds during shock wave lithotripsy for development of a clinical device

Prediction of far-field acoustic emissions from cavitation clouds during shock wave lithotripsy for development of a clinical device
Prediction of far-field acoustic emissions from cavitation clouds during shock wave lithotripsy for development of a clinical device
This study presents the key simulation and decision stage of a multi-disciplinary project to develop a hospital device for monitoring the effectiveness of kidney stone fragmentation by shock wave lithotripsy (SWL). The device analyses, in real time, the pressure fields detected by sensors placed on the patient's torso, fields generated by the interaction of the incident shock wave, cavitation, kidney stone and soft tissue. Earlier free-Lagrange simulations of those interactions were restricted (by limited computational resources) to computational domains within a few centimetres of the stone. Later studies estimated the far-field pressures generated when those interactions involved only single bubbles. This study extends the free-Lagrange method to quantify the bubble–bubble interaction as a function of their separation. This, in turn, allowed identification of the validity of using a model of non-interacting bubbles to obtain estimations of the far-field pressures from 1000 bubbles distributed within the focus of the SWL field. Up to this point in the multi-disciplinary project, the design of the clinical device had been led by the simulations. This study records the decision point when the project's direction had to be led by far more costly clinical trials instead of the relatively inexpensive simulations.

free-Lagrange simulations, shock–bubble interaction, acoustic emission, lithotripsy
1364-5021
20120538-[21pp]
Leighton, T. G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Turangan, C.K.
dad59b33-a4d7-4ac6-a49c-006e443e8ba4
Jamaluddin, A.R.
80faf5ed-1643-4c14-abaf-a1affcac9cf7
Ball, G.J.
2eb541a1-2a56-44c4-8ab1-4ff035fe87b7
White, P.R.
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Leighton, T. G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Turangan, C.K.
dad59b33-a4d7-4ac6-a49c-006e443e8ba4
Jamaluddin, A.R.
80faf5ed-1643-4c14-abaf-a1affcac9cf7
Ball, G.J.
2eb541a1-2a56-44c4-8ab1-4ff035fe87b7
White, P.R.
2dd2477b-5aa9-42e2-9d19-0806d994eaba

Leighton, T. G., Turangan, C.K., Jamaluddin, A.R., Ball, G.J. and White, P.R. (2013) Prediction of far-field acoustic emissions from cavitation clouds during shock wave lithotripsy for development of a clinical device. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 469 (2150), 20120538-[21pp]. (doi:10.1098/rspa.2012.0538).

Record type: Article

Abstract

This study presents the key simulation and decision stage of a multi-disciplinary project to develop a hospital device for monitoring the effectiveness of kidney stone fragmentation by shock wave lithotripsy (SWL). The device analyses, in real time, the pressure fields detected by sensors placed on the patient's torso, fields generated by the interaction of the incident shock wave, cavitation, kidney stone and soft tissue. Earlier free-Lagrange simulations of those interactions were restricted (by limited computational resources) to computational domains within a few centimetres of the stone. Later studies estimated the far-field pressures generated when those interactions involved only single bubbles. This study extends the free-Lagrange method to quantify the bubble–bubble interaction as a function of their separation. This, in turn, allowed identification of the validity of using a model of non-interacting bubbles to obtain estimations of the far-field pressures from 1000 bubbles distributed within the focus of the SWL field. Up to this point in the multi-disciplinary project, the design of the clinical device had been led by the simulations. This study records the decision point when the project's direction had to be led by far more costly clinical trials instead of the relatively inexpensive simulations.

Text
__soton.ac.uk_ude_PersonalFiles_Users_slb1_mydocuments_2013 Leighton et al CFD PRS litho (online first).pdf - Version of Record
Download (1MB)

More information

e-pub ahead of print date: 12 December 2012
Published date: 8 February 2013
Keywords: free-Lagrange simulations, shock–bubble interaction, acoustic emission, lithotripsy
Organisations: Acoustics Group

Identifiers

Local EPrints ID: 346316
URI: http://eprints.soton.ac.uk/id/eprint/346316
ISSN: 1364-5021
PURE UUID: 71d308f3-ff94-4755-b60a-d39a984712f8
ORCID for T. G. Leighton: ORCID iD orcid.org/0000-0002-1649-8750
ORCID for P.R. White: ORCID iD orcid.org/0000-0002-4787-8713

Catalogue record

Date deposited: 17 Dec 2012 14:08
Last modified: 15 Mar 2024 02:45

Export record

Altmetrics

Contributors

Author: T. G. Leighton ORCID iD
Author: C.K. Turangan
Author: A.R. Jamaluddin
Author: G.J. Ball
Author: P.R. White ORCID iD

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×