Modelling Blood Volume Oscillations in the Finger

The aim of this work is to describe a model of the relationship between blood volume and transmural pressure of a vessel of the finger, where the finger is pressed against a surface with increasing pressure. The focus lies on the amplitudes of the blood volume oscillations, as they can be measured easily. The model leads to a formula for the blood volume oscillation amplitudes. This equation is then fitted to measured data to estimate systolic and diastolic blood pressure. The focus lies on the fitting process and the quality of the fitting results.