Search: onr:"swepub:oai:lup.lub.lu.se:3fdf2349-4c5c-4dbd-bd90-2d652e3f9bc8" >
Volumetric Blood Fl...
Volumetric Blood Flow Assessment through Multigate Spectral Doppler
-
- Ricci, Stefano (author)
- University of Florence
-
- Cinthio, Magnus (author)
- Lund University,Lunds universitet,Avdelningen för Biomedicinsk teknik,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH
-
- Francalanci, Lorenzo (author)
- University of Florence
-
show more...
-
- Tortoli, Piero (author)
- University of Florence
-
show less...
-
(creator_code:org_t)
- 2009
- 2009
- English 4 s.
-
In: 2009 IEEE International Ultrasonics Symposium. - 9781424443895 ; , s. 570-573
- Related links:
-
http://dx.doi.org/10...
-
show more...
-
https://lup.lub.lu.s...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk laboratorie- och mätteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Laboratory and Measurements Technologies (hsv//eng)
Publication and Content Type
- kon (subject category)
- vet (subject category)
Find in a library
To the university's database