Numerical indicators of nonlinear propagation in acoustic fields
Numerical indicators of nonlinear propagation in acoustic fields
Measurements of acoustic exposure made in water and then derated to account for the attenuation of tissue can be distorted by nonlinear effects. We have evaluated numerical indicators of such distortion in diagnostic ultrasound fields.
We evaluate the indicators of the degree of nonlinearity in diagnostic ultrasound fields that could be used to guarantee 'quasi-linearity' or to correct measurements made under nonlinear conditions. A new indicator, σi, is introduced which can be calculated using measurements currently being made in ultrasound test labs.
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Duncan, T.M.
fbcb4fc6-dd71-42a2-bf3e-42f057091381
Hekkenberg, R.
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Humphrey, V.F.
23c9bd0c-7870-428f-b0dd-5ff158d22590
Duck, F.
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Cooling, M.P.
caf6c2e0-c385-4f8c-bec6-7dd0473f65af
2004
Duncan, T.M.
fbcb4fc6-dd71-42a2-bf3e-42f057091381
Hekkenberg, R.
218c2750-7c03-4862-bf44-b44928654589
Humphrey, V.F.
23c9bd0c-7870-428f-b0dd-5ff158d22590
Duck, F.
78d194a5-ce10-4f10-8982-c6ab04251979
Cooling, M.P.
caf6c2e0-c385-4f8c-bec6-7dd0473f65af
Duncan, T.M., Hekkenberg, R., Humphrey, V.F., Duck, F. and Cooling, M.P.
(2004)
Numerical indicators of nonlinear propagation in acoustic fields.
Journal of Physics: Conference Series, 1, .
(doi:10.1088/1742-6596/1/1/015).
Abstract
Measurements of acoustic exposure made in water and then derated to account for the attenuation of tissue can be distorted by nonlinear effects. We have evaluated numerical indicators of such distortion in diagnostic ultrasound fields.
We evaluate the indicators of the degree of nonlinearity in diagnostic ultrasound fields that could be used to guarantee 'quasi-linearity' or to correct measurements made under nonlinear conditions. A new indicator, σi, is introduced which can be calculated using measurements currently being made in ultrasound test labs.
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Published date: 2004
Identifiers
Local EPrints ID: 28192
URI: http://eprints.soton.ac.uk/id/eprint/28192
ISSN: 1742-6588
PURE UUID: 3c7c93df-104c-42c4-8388-184228763f92
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Date deposited: 28 Apr 2006
Last modified: 16 Mar 2024 03:34
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Author:
T.M. Duncan
Author:
R. Hekkenberg
Author:
F. Duck
Author:
M.P. Cooling
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