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Volumetric Blood Flow Assessment through Multigate Spectral Doppler

Ricci, Stefano ; Cinthio, Magnus LU ; Francalanci, Lorenzo and Tortoli, Piero (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)
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author
; ; and
organization
publishing date
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
2021-05-05 05:55:37
@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},
}