Two new methods for identifying pulse wave propagation characteristics (stiffness and density) in viscoelastic tubes were proposed and verified experimentally using a silicon tube.
This engineering study validates new methods for identifying arterial stiffness and density using limited pressure and flow measurements in a silicon tube model, which may inform future non-invasive diagnostic devices for arterial diseases.
Some arterial diseases, such as a peripheral arterial disease can be detected by blood pressures and pulse waves using non-invasive blood pressure monitoring devices. On the other hand, some diseases, like an abdominal aortic aneurysm, are hard to find in the same way though they also make influence to pulse waves. The aim of our research is to propose new method to detect such diseases. This paper shows two identification methods of pulse wave propagation characteristics in arteries under the assumption that arteries are viscoelastic tube. One method identifies material parameters, stiffness and density of a viscoelastic tube by measuring pressures at three points and flow volume at one point. The other method identifies them by measuring pressures at four points. Two proposed methods were verified by experiment using a silicon tube.
Sato et al. (Fri,) conducted a other in Arterial diseases (e.g., peripheral arterial disease, abdominal aortic aneurysm). Identification methods of pulse wave propagation characteristics was evaluated on Identification of material parameters (stiffness and density) of a viscoelastic tube. Two new methods for identifying pulse wave propagation characteristics (stiffness and density) in viscoelastic tubes were proposed and verified experimentally using a silicon tube.