Instability and `Sausage-String' Appearance in Blood Vessels during High Blood Pressure

Details Instability and `Sausage-String' Appearance in Blood Vessels during High Blood Pressure Instability and `Sausage-String' Appearance in Blood Vessels during High Blood Pressure

1998-10-02

arxiv.org/abs/physics/9810002v1

Phys. Rev. Lett. 82, 1995-1998 (1999)

Physics

Biological Physics

4 pages, 4 figures submitted to Physical Review Letters

Scientific paper

10.1103/PhysRevLett.82.1995

A new Rayleigh-type instability is proposed to explain the `sausage-string'
pattern of alternating constrictions and dilatations formed in blood vessels
under influence of a vasoconstricting agent. Our theory involves the nonlinear
elasticity characteristics of the vessel wall, and provides predictions for the
conditions under which the cylindrical form of a blood vessel becomes unstable.

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