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Background: The estimation of pulmonary vascular resistance (PVR) is of important in the diagnosis, management, and prognosis of cardiac disease; however, Doppler estimation of PVR is still considered unreliable and clumsy. The goal of this study was to seek a new method for noninvasive estimation of PVR by velocity propagation (VP) within the main pulmonary artery from color M-mode Doppler imaging...
The objective of this paper is to assess the accuracy of audio signal Processing system in noninvasive automatic estimation of Pulmonary arterial pressure(PAP). 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. Estimated pulmonary...
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