作者
Gerhard A Holzapfel, Gerhard Sommer, Martin Auer, Peter Regitnig, Ray W Ogden
发表日期
2007/4
期刊
Annals of biomedical engineering
卷号
35
页码范围
530-545
出版商
Kluwer Academic Publishers-Plenum Publishers
简介
Data relating to residual deformations in human arteries are scarce. In this paper we investigate three-dimensional residual deformations for intact strips and for their separate layers from human aortas in their passive state. From 11 abdominal aortas with identified anamnesis, 16 pairs of rings and axial strips were harvested, and the rings cut open. After 16 h images of the resulting geometries were recorded, and the strips were separated into their three layers; after another 6 h images were again recorded. Image processing and analysis was then used to quantify residual stretches and curvatures. For each specimen histological analysis established that the intima, media and adventitia were clearly separated, and the separation was atraumatic. Axial in situ stretches were determined to be 1.196 ± 0.084. On separation, the strips from the adventitia and media shortened (between 4.03 and 8.76% on …
引用总数
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