Non-parametric System Identification of Dynamic Baroreflex from Step Response

摘要

In cardiovascular diseases, the assessment of baroreflex function requires the quantitative evaluation of dynamic properties. The wavelet-based time-frequency analysis was applied to the model baroreflex response in anesthetized rabbits with isolated carotid sinuses. The dynamic baroreflex properties could be accurately extracted from short-term step responses, regardless of background noises, compared to the standard FFT method. The results indicate that the proposed analytical method might be applicable to clinical assessment of dynamic baroreflex function.