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Patent Ductus Arteriosus (PDA) is a frequent congenital heart defect in preterm newborns. Still, the assessment of hemodynamic significance is not obvious. In the presented pilot study the usefulness of phonocardiography in assessing the hemodynamics of the PDA was investigated. Nineteen infants have been examined, eleven with hemodynamically significant PDA verified by echocardiography. Four neonates...
This paper presents a heuristics-based, successive approximation method for heartbeat detection in fetal phonocardiographic signals, which takes advantage on some a priori biological knowledge. The algorithm reaches above 90% in terms of accuracy of heart rate identification. It is computationally effective and easily parallelizable. A method for signal qualification is also presented.
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