TY - GEN
T1 - Two-dimensional blood flow vector and wall shear stress of carotid artery obtained with dual-angle Doppler method
AU - Akagawa, Osamu
AU - Fukazu, Kosuke
AU - Nagaoka, Ryo
AU - Saijo, Yoshifumi
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/11/1
Y1 - 2016/11/1
N2 - Biomechanical assessment of atherosclerosis has been mainly studied by tissue characterization and elasticity measurement of arterial wall in biomedical ultrasound. On the other hand, fluid shear stress on the artery is also known as an important factor to change vascular endothelium properties leading to atherosclerosis. Ultrasound is a suitable imaging modality to measure blood flow with high temporal resolution. However, conventional Doppler method merely measures the velocity component along the ultrasonic beam. In the present study, two-dimensional blood flow vectors in carotid artery are measured by dual-angle Doppler measurement and validation of the method is performed in comparison with particle image velocimetry. Further, wall shear stress is calculated by flow distribution in the carotid artery. The study contributes to understand the pathophysiology of atherosclerosis in a non-invasive manner.
AB - Biomechanical assessment of atherosclerosis has been mainly studied by tissue characterization and elasticity measurement of arterial wall in biomedical ultrasound. On the other hand, fluid shear stress on the artery is also known as an important factor to change vascular endothelium properties leading to atherosclerosis. Ultrasound is a suitable imaging modality to measure blood flow with high temporal resolution. However, conventional Doppler method merely measures the velocity component along the ultrasonic beam. In the present study, two-dimensional blood flow vectors in carotid artery are measured by dual-angle Doppler measurement and validation of the method is performed in comparison with particle image velocimetry. Further, wall shear stress is calculated by flow distribution in the carotid artery. The study contributes to understand the pathophysiology of atherosclerosis in a non-invasive manner.
KW - blood flow
KW - carotid artery
KW - two-dimensional vector
KW - wall shear stress
UR - http://www.scopus.com/inward/record.url?scp=84996490190&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84996490190&partnerID=8YFLogxK
U2 - 10.1109/ULTSYM.2016.7728523
DO - 10.1109/ULTSYM.2016.7728523
M3 - Conference contribution
AN - SCOPUS:84996490190
T3 - IEEE International Ultrasonics Symposium, IUS
BT - 2016 IEEE International Ultrasonics Symposium, IUS 2016
PB - IEEE Computer Society
T2 - 2016 IEEE International Ultrasonics Symposium, IUS 2016
Y2 - 18 September 2016 through 21 September 2016
ER -