頁籤選單縮合
題 名 | Semi-Empirical Resonance Equations for the Artery with Organs |
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作 者 | Hsiu,H.; Luo,K. J.; Lin Wang,Y. Y.; Wang,W. K.; | 書刊名 | 醫學工程 |
卷 期 | 12:2 2000.04[民89.04] |
頁 次 | 頁66-74 |
分類號 | 414.7 |
關鍵詞 | Blood flow; Blood pressure; Hemodynamics; Hypertension; Resonance; |
語 文 | 英文(English) |
英文摘要 | Hemodynamic theories nowadays, which emphasize the blood flow rather than the blood pressure wave propagation, cannot describe the blood pressure and blood flow appropriately even in the main artery, let alone those in a complex system with attached organs. Considering that the elastic energy stored in the radial dilatation of vessel wall occupies more than 98% of total ventricular output work, we deduced the resonance equations and applied it to simulation systems composed of a main elastic tube (simulated aorta) and vascular bed models (simulated orans). We used the latex tube to construct our simulation models. Impulse responses of these systems were obtained and we got the semi-empirical parameters of each resonant unit by fitting the theoretic results to the measured ones. The results showed that the location of peak-amplitude and zero-phase-crossing frequencies as well as the spectrum shape fitted quite well. The results verifted the semi-empirical resonance equations in our simulation system, and we can get the pressure distribution and thus the microcirculation flux by this approach. Before deriving fully analytic solution for the whole system, it is a sufficiently powerful method to solve the problems in the arterial system. |
本系統中英文摘要資訊取自各篇刊載內容。