A Non-invasive Evaluation System

for Children's Pulmonary Circulation

Liu Bin, Wang Yuanyuan, Wang Weiqi, Chen Sizhong

Abstract   The traditional method, cardiac catheterization, to evaluate children's pulmonary circulation�� i.e. to measure and to calculate the parameters, such as systolic, diastolic pressures of pulmonary artery and Total Pulmonary Resistance (TPR), is invasive. In this paper, a non-invasive evaluation system is put forward, which estimates the ratio of pulmonary to systemic pressure using audio Pulsed-Wave Doppler signal and ECG, and calculates those parameters automatically by computer.

Keywords   Children's pulmonary circulation; Non-invasive; Computer system