Ultrasound Doppler for improved diagnosis of disease in the paranasal sinuses
(2005) IEEE Ultrasonics Symposium, 2005 2. p.839-841- Abstract
- We propose a method to improve the diagnosis of infection in the paranasal sinuses, distinguishing between mucous and serous cases. The method utilizes a previously published method whereby the viscosity in a sealed container may be measured using an ultrasound Doppler method. As ultrasound propagates in a liquid medium, due to attenuation, the resulting pressure gradient will cause the liquid to move in the propagation direction - the wellknown effect of acoustic streaming. The streaming velocity will, for a given acoustic output, be proportional to the viscosity of the fluid. In this study, we verify that acoustic streaming can be induced in an anthropomorphic sinus phantom cast from a human cranium. The sinus phantom was made from agar... (More)
- We propose a method to improve the diagnosis of infection in the paranasal sinuses, distinguishing between mucous and serous cases. The method utilizes a previously published method whereby the viscosity in a sealed container may be measured using an ultrasound Doppler method. As ultrasound propagates in a liquid medium, due to attenuation, the resulting pressure gradient will cause the liquid to move in the propagation direction - the wellknown effect of acoustic streaming. The streaming velocity will, for a given acoustic output, be proportional to the viscosity of the fluid. In this study, we verify that acoustic streaming can be induced in an anthropomorphic sinus phantom cast from a human cranium. The sinus phantom was made from agar with added graphite providing sound attenuation prior to the sinus cavity corresponding to an in vivo situation. A number of water-glycerol solutions with scattering particles, were prepared to mimic a clinically interesting range of viscosities (7-47 mPas). Using a 4.2 MHz continuous wave Doppler probe, clearly detectable mean Doppler shifts in the range of 6.5 to 20 Hz were recorded A linear relationship was found between the Doppler shifts and 1/viscosity (R<sup>2</sup>=0.94, corrected for the square-law dependence of sound speed variation due to varying glycerol concentration). (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/615625
- author
- Jansson, Tomas LU ; Persson, Hans W LU ; Holmer, Nils-Gunnar LU ; Sahlstrand-Johnson, Pernilla and Jannert, Magnus LU
- organization
- publishing date
- 2005
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Continuous-wave Doppler, Doppler probe, Sinus cavity
- host publication
- Proceedings - IEEE Ultrasonics Symposium
- volume
- 2
- pages
- 839 - 841
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- IEEE Ultrasonics Symposium, 2005
- conference location
- Rotterdam, Netherlands
- conference dates
- 2005-09-18 - 2005-09-21
- external identifiers
-
- wos:000236090701030
- scopus:33847093353
- ISSN
- 1051-0117
- ISBN
- 0780393821
- DOI
- 10.1109/ULTSYM.2005.1602980
- language
- English
- LU publication?
- yes
- id
- e0451775-ff91-4bdb-a202-7211338a8126 (old id 615625)
- date added to LUP
- 2016-04-01 17:08:02
- date last changed
- 2022-04-23 02:58:44
@inproceedings{e0451775-ff91-4bdb-a202-7211338a8126,
abstract = {{We propose a method to improve the diagnosis of infection in the paranasal sinuses, distinguishing between mucous and serous cases. The method utilizes a previously published method whereby the viscosity in a sealed container may be measured using an ultrasound Doppler method. As ultrasound propagates in a liquid medium, due to attenuation, the resulting pressure gradient will cause the liquid to move in the propagation direction - the wellknown effect of acoustic streaming. The streaming velocity will, for a given acoustic output, be proportional to the viscosity of the fluid. In this study, we verify that acoustic streaming can be induced in an anthropomorphic sinus phantom cast from a human cranium. The sinus phantom was made from agar with added graphite providing sound attenuation prior to the sinus cavity corresponding to an in vivo situation. A number of water-glycerol solutions with scattering particles, were prepared to mimic a clinically interesting range of viscosities (7-47 mPas). Using a 4.2 MHz continuous wave Doppler probe, clearly detectable mean Doppler shifts in the range of 6.5 to 20 Hz were recorded A linear relationship was found between the Doppler shifts and 1/viscosity (R<sup>2</sup>=0.94, corrected for the square-law dependence of sound speed variation due to varying glycerol concentration).}},
author = {{Jansson, Tomas and Persson, Hans W and Holmer, Nils-Gunnar and Sahlstrand-Johnson, Pernilla and Jannert, Magnus}},
booktitle = {{Proceedings - IEEE Ultrasonics Symposium}},
isbn = {{0780393821}},
issn = {{1051-0117}},
keywords = {{Continuous-wave Doppler; Doppler probe; Sinus cavity}},
language = {{eng}},
pages = {{839--841}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
title = {{Ultrasound Doppler for improved diagnosis of disease in the paranasal sinuses}},
url = {{http://dx.doi.org/10.1109/ULTSYM.2005.1602980}},
doi = {{10.1109/ULTSYM.2005.1602980}},
volume = {{2}},
year = {{2005}},
}