In vivo 3-D vector velocity estimation with continuous data
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In vivo 3-D vector velocity estimation with continuous data. / Holbek, Simon; Pihl, Michael Johannes; Ewertsen, Caroline; Nielsen, Michael Bachmann; Jensen, Jorgen Arendt.
2015 IEEE International Ultrasonics Symposium, IUS 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7329310 (2015 IEEE International Ultrasonics Symposium, IUS 2015).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
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TY - GEN
T1 - In vivo 3-D vector velocity estimation with continuous data
AU - Holbek, Simon
AU - Pihl, Michael Johannes
AU - Ewertsen, Caroline
AU - Nielsen, Michael Bachmann
AU - Jensen, Jorgen Arendt
N1 - Publisher Copyright: © 2015 IEEE.
PY - 2015/11/13
Y1 - 2015/11/13
N2 - In this study, a method for estimating 3-D vector velocities at very high frame rate using continuous data acquisition is presented. An emission sequence was designed to acquire real-time continuous data in one plane. The transverse oscillation (TO) method was used to estimate 3-D vector flow in a carotid flow phantom and in vivo in the common carotid artery of a healthy 27-year old female. Based on the out-of-plane velocity component during four periodic cycles, estimated flow rates in an experimental setup was 2.96 ml/s ± 0.35 ml/s compared to the expected 3.06 ml/s ± 0.09 ml/s. In the in vivo measurements, three heart cycles acquired at 2.1 kHz showed peak out-of-plane velocities of 83 cm/s, 87 cm/s and 90 cm/s in agreement with the 92 cm/s found with spectral Doppler. Mean flow rate was estimated to 257 ml/min. The results demonstrate that accurate real-time 3-D vector velocities can be obtained using the TO method, which can be used to improve operator-independece when examining blood flow in vivo, thereby increasing accuracy and consistency.
AB - In this study, a method for estimating 3-D vector velocities at very high frame rate using continuous data acquisition is presented. An emission sequence was designed to acquire real-time continuous data in one plane. The transverse oscillation (TO) method was used to estimate 3-D vector flow in a carotid flow phantom and in vivo in the common carotid artery of a healthy 27-year old female. Based on the out-of-plane velocity component during four periodic cycles, estimated flow rates in an experimental setup was 2.96 ml/s ± 0.35 ml/s compared to the expected 3.06 ml/s ± 0.09 ml/s. In the in vivo measurements, three heart cycles acquired at 2.1 kHz showed peak out-of-plane velocities of 83 cm/s, 87 cm/s and 90 cm/s in agreement with the 92 cm/s found with spectral Doppler. Mean flow rate was estimated to 257 ml/min. The results demonstrate that accurate real-time 3-D vector velocities can be obtained using the TO method, which can be used to improve operator-independece when examining blood flow in vivo, thereby increasing accuracy and consistency.
UR - http://www.scopus.com/inward/record.url?scp=84961989548&partnerID=8YFLogxK
U2 - 10.1109/ULTSYM.2015.0235
DO - 10.1109/ULTSYM.2015.0235
M3 - Article in proceedings
AN - SCOPUS:84961989548
T3 - 2015 IEEE International Ultrasonics Symposium, IUS 2015
BT - 2015 IEEE International Ultrasonics Symposium, IUS 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE International Ultrasonics Symposium, IUS 2015
Y2 - 21 October 2015 through 24 October 2015
ER -
ID: 331499659