A sudden reduction in perfusion pressure evokes a transient hyperaemic response in the coronary arteries of anaesthetized dogs; its characteristics depend on the vasomotor tone. A heuristic model, which mimics the vascular bed with a lumped second-order system on the lines of the well-known Windkessel model, but accounting for the blood inertia, is proposed to describe that response and to quantify the viscoelastic properties of the system.
Relationship between hyperaemic response and viscoelastic properties in the coronary circulation of the dog.
GUIOT, Caterina;LOSANO, Giovanni
1991-01-01
Abstract
A sudden reduction in perfusion pressure evokes a transient hyperaemic response in the coronary arteries of anaesthetized dogs; its characteristics depend on the vasomotor tone. A heuristic model, which mimics the vascular bed with a lumped second-order system on the lines of the well-known Windkessel model, but accounting for the blood inertia, is proposed to describe that response and to quantify the viscoelastic properties of the system.
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