Comparison of Different Approaches to Implementing Measured Hemodynamic Parameters within an Electromechanical Analogy-based Human Body Arterial Model

摘要

The objective of this study was to explore the possibility of combining the theoretical human arterial model based on electromechanical analogy with real impedance cardiography measurements - the fusion of which would create a per-person adaptable model. Cardiac activity was modeled based on two different sources - the first model (Model No.1) included real-life hemodynamic parameters based on variation of universal aortic pressure, while the second model (Model No.2) was based on real-life aortic flow derived from measurements. Simulated blood pressure propagation in proximal aortic segment was compared with reference pressure values measured by an electronic sphygmomanometer. Model No. 2 was found to be more accurate and better representative of real behavior of the arterial system under normal conditions. Additionally, the blood pressure and blood flow curves directly reflected the variability of the cardiac activity.