Summary
In a study of 25 children with left-to-right intracardiac shunt we found a good correlation (r>0.92;p<0.001) between right ventricular pre-ejection period/acceleration time, derived from pulsed Doppler echocardiography, and pulmonary artery systolic, diastolic, and mean pressures, measured at cardiac catheterization. This may enhance the noninvasive estimation of pulmonary artery pressure.
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Wan-zhen, L., Jun-bao, D., Yu-wen, M. et al. Pulmonary artery pressure evaluated by pulsed Doppler echocardiography in children with a left-to right intracardiac shunt. Pediatr Cardiol 12, 17–19 (1991). https://doi.org/10.1007/BF02238492
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DOI: https://doi.org/10.1007/BF02238492