基于非线性动力学的脑血流自动调节能力评估

he cerebral blood flow remained relatively stable in a certain range of blood pressure, which has an important meaning for the environmental stability of the brain and exerting its function. The ability of cerebral blood flow autoregulation reflects the compensatory capacity of circulatory system, so its quantitative assessment has important significance to treatment and prevention of cerebral vascular disease. In this paper, the Cross-approximate entropy of nonlinear dynamics is used to study autoregulation ability of cerebral blood flow. The experimental results revealed that the method can achieve real-time, continuous quantitative assessment autoregulation capacity of cerebral blood flow, and provided a nice method to evaluate the compensatory capacity of circulatory system and brain diseases.