TY - JOUR
T1 - Evaluation of accuracy of phase-sensitive method in estimation of axial motion and deformation with fluid-structure interaction analysis
AU - Ishikawa, Kazuma
AU - Mozumi, Michiya
AU - Omura, Masaaki
AU - Nagaoka, Ryo
AU - Hasegawa, Hideyuki
N1 - Publisher Copyright:
© 2021 The Japan Society of Applied Physics
PY - 2021/7
Y1 - 2021/7
N2 - Accuracies of ultrasonic methods for estimation of motion/deformation should be evaluated, but such evaluation in real experiments is not easy because it is difficult to know the true distribution of motion/deformation in complex geometry, such as an atherosclerotic plaque model. In the present study, numerical simulation was performed to obtain ultrasonic echo signals from a deforming plaque model. The accuracies of our phase-sensitive 2D motion estimator in estimation of velocity and strain rate were evaluated to be 22.8% and 27.6%, respectively, and the spatial features of the estimated velocity and strain rate distributions were well corresponded to the true distributions.
AB - Accuracies of ultrasonic methods for estimation of motion/deformation should be evaluated, but such evaluation in real experiments is not easy because it is difficult to know the true distribution of motion/deformation in complex geometry, such as an atherosclerotic plaque model. In the present study, numerical simulation was performed to obtain ultrasonic echo signals from a deforming plaque model. The accuracies of our phase-sensitive 2D motion estimator in estimation of velocity and strain rate were evaluated to be 22.8% and 27.6%, respectively, and the spatial features of the estimated velocity and strain rate distributions were well corresponded to the true distributions.
UR - http://www.scopus.com/inward/record.url?scp=85102971159&partnerID=8YFLogxK
U2 - 10.35848/1347-4065/abe5be
DO - 10.35848/1347-4065/abe5be
M3 - 学術論文
AN - SCOPUS:85102971159
SN - 0021-4922
VL - 60
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - SD
M1 - SDDE01
ER -