Characteristics of blood vessels forming “sausages-on-a-string” patterns during hypertension

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• 作者：Ulrik Ravnsborg Beierholm ; Jens Christian Brings Jacobsen ; Niels-Henrik Holstein-Rathlou ; Preben Alstrø ; m
• 关键词：Rayleigh instability ; Blood vessels ; Hypertension ; Numerical simulations
• 刊名：Physica A
• 出版年：2007
• 期刊代码：138_03784371
• 类别：et
• 出版时间：15 March 2007
• 卷：376
• 期：Complete
• 页码：387-393
• 文件大小：388 K

摘要

A phenomenon of alternate constrictions and dilatations in blood vessels has been studied for over 50 years. Recently, a theory has been presented involving a Rayleigh type instability. We analyze the model in terms of the lengths of the deformations in relation to the wall thickness, blood pressure and stress. Analytical and numerical results obtained are consistent with experimental data.