Volumetric Blood Flow Assessment through Multigate Spectral Doppler
(2009) p.570-573- Abstract
- Volumetric blood flow measurements require the assessment of both the velocity distribution and the cross-sectional area of the vessel. Unfortunately several difficulties hamper such a measurement in standard approaches. A new dual beam method has been recently introduced in which the Doppler spectral symmetry is exploited to finely orientating the first beam at 90° with respect to the flow, so that the remaining beam can perform a velocity measurement with known Doppler angle. In this paper it is shown how this special beam configuration proves particularly suitable for volume flow measurements. While the transverse beam performs a diameter measurement with optimal orientation, the velocity distribution along the second beam is measured... (More)
- Volumetric blood flow measurements require the assessment of both the velocity distribution and the cross-sectional area of the vessel. Unfortunately several difficulties hamper such a measurement in standard approaches. A new dual beam method has been recently introduced in which the Doppler spectral symmetry is exploited to finely orientating the first beam at 90° with respect to the flow, so that the remaining beam can perform a velocity measurement with known Doppler angle. In this paper it is shown how this special beam configuration proves particularly suitable for volume flow measurements. While the transverse beam performs a diameter measurement with optimal orientation, the velocity distribution along the second beam is measured through multigate spectral analysis. The method has been coded on a research system. In-vitro experiments produced a bias less then 7% with a coefficient of variability (CV) less then 5%. In preliminary tests on 3 volunteers CVs within 10% were obtained. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3fdf2349-4c5c-4dbd-bd90-2d652e3f9bc8
- author
- Ricci, Stefano ; Cinthio, Magnus LU ; Francalanci, Lorenzo and Tortoli, Piero
- organization
- publishing date
- 2009
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- 2009 IEEE International Ultrasonics Symposium
- pages
- 4 pages
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- scopus:77952814205
- ISBN
- 978-1-4244-4389-5
- DOI
- 10.1109/ULTSYM.2009.5442066
- language
- English
- LU publication?
- yes
- id
- 3fdf2349-4c5c-4dbd-bd90-2d652e3f9bc8
- date added to LUP
- 2019-06-30 19:13:16
- date last changed
- 2022-02-23 07:17:15
@inproceedings{3fdf2349-4c5c-4dbd-bd90-2d652e3f9bc8, abstract = {{Volumetric blood flow measurements require the assessment of both the velocity distribution and the cross-sectional area of the vessel. Unfortunately several difficulties hamper such a measurement in standard approaches. A new dual beam method has been recently introduced in which the Doppler spectral symmetry is exploited to finely orientating the first beam at 90° with respect to the flow, so that the remaining beam can perform a velocity measurement with known Doppler angle. In this paper it is shown how this special beam configuration proves particularly suitable for volume flow measurements. While the transverse beam performs a diameter measurement with optimal orientation, the velocity distribution along the second beam is measured through multigate spectral analysis. The method has been coded on a research system. In-vitro experiments produced a bias less then 7% with a coefficient of variability (CV) less then 5%. In preliminary tests on 3 volunteers CVs within 10% were obtained.}}, author = {{Ricci, Stefano and Cinthio, Magnus and Francalanci, Lorenzo and Tortoli, Piero}}, booktitle = {{2009 IEEE International Ultrasonics Symposium}}, isbn = {{978-1-4244-4389-5}}, language = {{eng}}, pages = {{570--573}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, title = {{Volumetric Blood Flow Assessment through Multigate Spectral Doppler}}, url = {{http://dx.doi.org/10.1109/ULTSYM.2009.5442066}}, doi = {{10.1109/ULTSYM.2009.5442066}}, year = {{2009}}, }