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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Pulse wave velocity ： ウィキペディア英語版 Pulse wave velocity Pulse wave velocity (PWV) is a measure of arterial stiffness. It is easy to measure invasively and non-invasively in humans, is highly reproducible, has a strong correlation with cardiovascular events and all-cause mortality, and was recognized by the European Society of Hypertension as integral to the diagnosis and treatment of hypertension. A high pulse wave velocity (PWV) has also been associated with poor lung function. == Relationship between arterial stiffness and pulse wave velocity == The study of the basic scientific principles of the velocity of the pulse wave through the arterial tree dates back to 1808 with the work of Thomas Young. The relationship between pulse wave velocity (PWV) and arterial wall stiffness can be calculated from first principles from Newton's second law of motion; :$F=ma$ Using some simplifying assumptions, the Moens–Korteweg equation can be derived, an equation that directly relates PWV and artery wall stiffness. :$\backslash mathrm\; =\; \backslash sqrt\}$ The Moens-Korteweg equation states that PWV is proportional to the square root of the incremental elastic modulus of the vessel wall given constant ratio of wall thickness $h$ to vessel radius $r$〔 under the assumptions used to derive the equation, these assumptions being: # there is no, or insignificant, change in vessel area. # there is no, or insignificant, change in wall thickness. # that $\backslash operatorname\backslash !v(\backslash operatorname\backslash !r^)\backslash operatorname\backslash !x\backslash cdot\; \backslash operatorname\backslash !t$ is small to the point of insignificance. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pulse wave velocity」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.