STUDY on NONINVASIVE AUTO-ESTIMATION of PULMONARY ARTERIAL PRESSURES by DOPPLER ECHOCARDIOGRAPHY AUDIO SIGNAL PROCESSING SYSTEM
Objective To assess the accuracy of audio signal Processing system in noninvasive automatic estimation of Pulmonary arterial pressure(PAP). Methods: Comparative studies among Doppler echocardiography, audio signal processing system (ASPS) and cardiac catheterization for predicting PAP have been done in 51 children with left-to-right shunting congenital heart disease. Results: Estimated pulmonary artery systolic and mean pressure adopting modified pulmonary to aortic flow time interval ratios (FPA/FAO) by ASPS correlated highly with those measured by cardiac catheterization (r=0.95,0.96, p<0.001), were correlated better than those measured by Doppler echocardiography (r=0.86,0.86, p< 0.001). Conclusions: PAP can be estimated noninvasively adopting modified FPA/FAO by ASPS.
PulmonaryArterial Pressure Doppler Echocardiography
Yuqi Zhang Kun Sun Yuanyuan Wang Lanping Wu Weiqi Wang Yu Ma
Department of Pediatric Cardiology,Shanghai Childrens Medical Center,Shanghai Jiaotong University,S Department of Electronic Engineering,Fudan University,Shanghai,China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）