3-D velocity estimation for two planes in vivo
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3-D velocity estimation for two planes in vivo. / Holbek, Simon; Pihl, Michael Johannes; Ewertsen, Caroline; Nielsen, Michael Bachmann; Jensen, Jørgen Arendt.
IEEE International Ultrasonics Symposium, IUS. IEEE Computer Society Press, 2014. s. 1706-1709 6931926 (IEEE International Ultrasonics Symposium, IUS).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
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TY - GEN
T1 - 3-D velocity estimation for two planes in vivo
AU - Holbek, Simon
AU - Pihl, Michael Johannes
AU - Ewertsen, Caroline
AU - Nielsen, Michael Bachmann
AU - Jensen, Jørgen Arendt
N1 - Publisher Copyright: © 2014 IEEE.
PY - 2014/10/20
Y1 - 2014/10/20
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84910073135&partnerID=8YFLogxK
U2 - 10.1109/ULTSYM.2014.0423
DO - 10.1109/ULTSYM.2014.0423
M3 - Article in proceedings
AN - SCOPUS:84910073135
T3 - IEEE International Ultrasonics Symposium, IUS
SP - 1706
EP - 1709
BT - IEEE International Ultrasonics Symposium, IUS
PB - IEEE Computer Society Press
T2 - 2014 IEEE International Ultrasonics Symposium, IUS 2014
Y2 - 3 September 2014 through 6 September 2014
ER -
ID: 331501444