Abstract
Measurement of rheology of blood plays an important role in prevent and diagnosis of cardiovascular system diseases such as hypertension, cerebral infarction, etc. In this paper, we present the development of a novel system for the measurement of the blood rheology non-invasively by using image processing technology. A constant pressure is shortly applied to the tip of the index finger to make an imprint of temporary ischemia. After the release of pressure, the imprint of ischemia is video-recorded. Using image processing technology, temporal change of the imprint area is calculated. Experiments showed that the speed of the decrease of the imprint area could be used for evaluation of blood rheology.
