A comparison study of two indirect methods for measuring the systolic pulmonary arterial pressure

This paper presents a comparison study between two non invasive approaches for the estimation of Pulmonary Artery Pressure (PAP). The first method relies on the Pulsed Doppler echocardiography which has been used in this case for the measurement of maximum tricuspid transvalvular pressure gradient. The second method is based on the elaboration of heart acoustic sounds and particularly of the second heart sound. In the present works results relevant to the first experimental campaign are reported and relevant to PAP measurements on 40 athletes of different kinds of sport. Results show encouraging matching between two methods.