著者

酒井 拓哉 山崎 陽一 神山 斉己

出版者

公益社団法人 日本生体医工学会

雑誌

生体医工学 (ISSN:1347443X)

巻号頁・発行日

vol.52, no.Supplement, pp.O-430-O-431, 2014 (Released:2014-10-04)

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Many non-invasive assessment techniques of arteriosclerosis have been proposed by assuming the blood vessels as the simple cylindrical tube. The arterial system is more complicated and can be described by a tree structure. However, previous assessment techniques do not take into account the spatial information of the arterial system. In this study, we propose a method in which the physical properties of whole arteries can be estimated from the observable states using Avolio's model. In order to evaluate whether or not the proposed method provides the precise information on the arterial tree, we made a simulation analysis with the simplified arterial model. The objective parameters and the observable state are Young's modulus and pulse wave velocity, respectively. The results showed the proposed method has an ability to estimate the spatial information. It is also suggested that we need a customized optimization technique for the objective information and the observable state.