血流の超音波計測融合シミュレーションにおけるゼロ表示されたドプラ速度のフィードバックの影響(生体の流れ(1),一般講演)

概要

論文の詳細を見る
Ultrasonic-measurement-integrated (UMI) simulation, in which feedback signals are applied to the governing equations based on errors between ultrasonic measurement and numerical simulation, has been investigated for reproduction of the blood flow field. In this study, the effects of wall filter and lack of data, which provide zero Doppler velocity, on UMI simulation were examined by a numerical experiment dealing with the blood flow field in the descending aorta with an aneurysm. Effects of wall filter and lack of data appeared in diastole and in the whole period, respectively. However, by not adding feedback signals where measured Doppler velocities were zero, the computational accuracy of the UMI simulation substantially improved for the sake of the feedback.
日本流体力学会の論文
2010-09-09