上腕カフ・循環系統合計算モデルの構築(バイオ・マイクロ・スポーツの流れ生体の流れ(1),一般講演)

概要

論文の詳細を見る
We develop a mathematical model for the oscillometric system employed in oscillometric pressure measurement. The model is a comprehensive one in that it accounts for both mechanics of an occlusive cuff and hemodynamics in the entire cardiovascular system. Obtained results show that the model is able to reproduce the essential characteristics of oscillometry and at the same time capture the dynamic changes of brachial artery cross-sectional area and intra-vascular hemodynamics with varying cuff pressure. Particularly, the simulations demonstrate that pressure pulse upstream of the brachial artery is not really constant during the cuff inflating-deflating process; both its shape and magnitude vary significantly with cuff pressure. This indicates that the present model has significant advantages over models of a single oscillometric system, and can serve as a better tool for investigating the effects of biomechanical factors on the accuracy of oscillometric pressure measurement.
日本流体力学会の論文
2009-09-02