Reddy, Sridhar P.Shyu, Liang-YuHurwitz, Barry E.Nagel, Joachim H.Schneiderman, Neil2010-06-142016-03-312010-06-142016-03-311988324275811http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-54224http://elib.uni-stuttgart.de/handle/11682/7260http://dx.doi.org/10.18419/opus-7243This study used the impedance cardiogram (ICG), the phonocardiogram (pCG) and the electrocardiogram (ECG) to determine stroke volume and systolic time intervals. Comparisons between a fully automated PC-AT signal processing system and a computer-assisted visual detection processing system revealed comparable means, standard errors, correlations (Spearman r) and reliability (Chronbach's ex) coefficients on all relevant parameters. Other analyses confIrmed the utility of using Q onset to mark the beginning of ventricular systole, the B point of the ICG to denote the aortic opening and end diastole as the reference for determining the amplitude of dZ/dt max.eninfo:eu-repo/semantics/openAccessKardiographie , Signalverarbeitung620conferenceObject2013-10-15