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Development of an anatomical carotid artery flow phantom for the calibration of doppler ultrasound systems

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conference contribution
posted on 17.10.2014, 09:12 by Darren WattsDarren Watts, C.J. Sutcliffe, R.H. Morgan, S. Meagher, J. Wardlaw, M. Connell, P. Hoskins, R.A. Black
Cardiovascular diseases are responsible for over 50% of all deaths in the UK. Current measurement techniques involve non-invasive Doppler ultrasound imaging of blood velocity, however it is known that measured velocity may be in error by typically 20-60%. This paper presents the development of anatomically correct tissue equivalent vessels for calibration of Doppler ultrasound by particle imaging techniques. Patient specific arterial MRI data is used as the basis for construction of a 3D CAD model. The model was modified to simulate varying degrees of stenosis (narrowing). The arterial geometry is fabricated by Stereolithography to generate investment cast patterns from low melting point alloy. The expendable cores are then used in the construction of optically transparent models for particle image velocimetry (PIV) analysis and for agar models using an acoustically matched tissue mimic material for Doppler ultrasound measurement. Issues concerning the fabrication of models for direct comparison of Doppler and PIV data will be discussed.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Proceedings of the CRDM Conference

Pages

13 - 21

Citation

WATTS, D.M. ... et al., 2003. Development of an anatomical carotid artery flow phantom for the calibration of doppler ultrasound systems. IN: Bocking, C.E., Rennie, A. and Jacobson, D.M. (eds.) Rapid and virtual prototyping and applications: Proceedings of the Fourth National Conference on Rapid and Virtual Prototyping and Applications, Bury St. Edmunds: Professional Engineering Publishing, pp. 13-21.

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2003

Notes

This conference paper was presented at the Fourth National Conference on Rapid and Virtual Prototyping and Applications. An earlier version was presented at the 3D Solid Modelling, 8th International Congress, Paris, 2003.

Language

en

Location

High Wycombe, UK