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1-6 of 6
Keywords: Spectral analysis
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Journal Articles
Spectral Signature of the Opening Sound of the Bjork-Shiley Convexoconcave Valve as a Potential Indicator of Strut Fracture
Available to PurchaseSubject Area:
Cardiovascular System
American Journal of Noninvasive Cardiology (1987) 1 (6): 369–372.
Published Online: 11 August 2017
... before complete failure of the valve occurs. For this purpose, we evaluated in vitro the potential of spectral analysis of the prosthetic valve sound as a noninvasive indicator of strut fracture. An intact 29-mm BSCC valve and a normally functioning 29-mm BSCC valve with a through-and-through fracture...
Journal Articles
The Genesis of the Opening Snap in Mitral Stenosis:Correlations between Spectral Analysis and Echocardiographic Data
Available to PurchaseSubject Area:
Cardiovascular System
Carlo Longhini, Tiziano Toselli, Enrico Baracca, Silvio Aggio, Marco Vaccari, Cristiana Brunazzi, Eric van Vollenhoven
American Journal of Noninvasive Cardiology (1987) 1 (6): 373–377.
Published Online: 11 August 2017
... Phonocardiogram Fast Fourier transform Spectral analysis Echocardiogram Am J Noninvas Cardiol 1987;1:373-377 © 1987 S. Karger AG, Basel 0258-4425/87/0016-037 3$2.7 5/0 The Genesis of the Opening Snap in Mitral Stenosis: Correlations between Spectral Analysis and Echocardiographie Data1 Carlo Longhini...
Journal Articles
Developmental Changes in Respiratory Sinus Arrhythmia
Available to PurchaseSubject Area:
Cardiovascular System
American Journal of Noninvasive Cardiology (1992) 6 (1): 44–46.
Published Online: 11 August 2017
...William A. Scott; Richard L. Donnerstein Respiratory sinus arrhythmia (RSA) can be quantified with spectral analysis of the frequencies of variation and used as an index of vagal tone. This study was designed to determine if the quantification of RSA could detect developmental changes in the vagal...
Journal Articles
Assessment of Autonomie Function in Patients with Acute Myocardial Infarction by Heart Rate Spectral Analysis
Available to PurchaseSubject Area:
Cardiovascular System
American Journal of Noninvasive Cardiology (1993) 7 (4): 215–219.
Published Online: 11 August 2017
... prognostic variables. 11 8 2017 Myocardial infarction Heart rate variability Spectral analysis Sympathovagal interaction J. Puiga J. Freitasa M. Carvalhoh M.J. Macieft P. Fernandesc O. Costab M. Cerqueira Gomesa A. Falcäo Freitas'0 a Department of Cardiology, Hospital S. Joâo, Oporto; b...
Journal Articles
A Four-Year Follow-Up of Mitral Bioprostheses by Fast Fourier Transform Monitoring of the First Heart Sound
Available to PurchaseSubject Area:
Cardiovascular System
Enrico Baracca, Maria Brunazzi Brunazzi, Paolo Sgobino, Marco Vaccari, Mario Pasqualini, Daniele Cavazzini, Carlo Longhini
American Journal of Noninvasive Cardiology (1994) 8 (1): 7–10.
Published Online: 11 August 2017
... Ferrara; b Divisione Cardiologica, Ospedale di Legnago, Italia A Four-Year Follow-Up of Mitral Bioprostheses by Fast Fourier Transform Monitoring of the First Heart Sound KeyWords Mitral bioprosthetic valves Spectral analysis Follow-up of aging of bioprosthetic valves Spectral analysis ofbioprosthetic...
Journal Articles
Spectral Analysis of the First Half QRS Complex in Normal Subjects and Patients with Previous Myocardial Infarction
Available to PurchaseSubject Area:
Cardiovascular System
American Journal of Noninvasive Cardiology (1992) 6 (2): 104–108.
Published Online: 11 August 2017
... onset to midpoint. There was a significant correlation between the maximal value of the 0-to 40-Hz area and the left ventricular ejection fraction (EF) in IMI (r = –0.65)and between the maximal value of the 40- to 250-Hz area and EF in AMI (r =0.47). These results demonstrated that the spectral analysis...
