3-D velocity estimation for two planes in vivo
Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
3-D velocity vectors can provide additional flow information applicable for diagnosing cardiovascular diseases e.g. by estimating the out-of-plane velocity component. A 3-D version of the Transverse Oscillation (TO) method has previously been used to obtain this information in a carotid flow phantom with constant flow. This paper presents the first in vivo measurements of the 3-D velocity vector, which were obtained over 3 cardiac cycles in the common carotid artery of a 32-year-old healthy male volunteer. Data were acquired using a Vermon 3.5 MHz 32×32 element 2-D phased array transducer and stored on the experimental scanner SARUS. The full 3-D velocity profile can be created and examined at peak-systole and end-diastole without ECG gating in two planes. Maximum out-of-plane velocities for the three peak-systoles and end-diastoles were 68.5-5.1 cm/s and 26.3-3.3 cm/s, respectively. In the longitudinal plane, average maximum peak velocity in flow direction was 65.2-14.0 cm/s at peak-systole and 33.6-4.3 cm/s at end-diastole. A commercial BK Medical ProFocus UltraView scanner using a spectral estimator gave 79.3 cm/s and 14.6 cm/s for the same volunteer. This demonstrates that real-time 3-D vector velocity imaging without ECG gating yields quantitative in vivo estimations on flow direction and magnitude.
Originalsprog | Engelsk |
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Titel | IEEE International Ultrasonics Symposium, IUS |
Antal sider | 4 |
Forlag | IEEE Computer Society Press |
Publikationsdato | 20 okt. 2014 |
Sider | 1706-1709 |
Artikelnummer | 6931926 |
ISBN (Elektronisk) | 9781479970490 |
DOI | |
Status | Udgivet - 20 okt. 2014 |
Begivenhed | 2014 IEEE International Ultrasonics Symposium, IUS 2014 - Chicago, USA Varighed: 3 sep. 2014 → 6 sep. 2014 |
Konference
Konference | 2014 IEEE International Ultrasonics Symposium, IUS 2014 |
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Land | USA |
By | Chicago |
Periode | 03/09/2014 → 06/09/2014 |
Navn | IEEE International Ultrasonics Symposium, IUS |
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ISSN | 1948-5719 |
Bibliografisk note
Publisher Copyright:
© 2014 IEEE.
ID: 331501444