title: [Synchronous automated analysis of a spirogram and cardiac intervalogram].
abstract: The paper deals with the functional diagnosis based on the synchronous analysis of a spirogram and a cardiac intervalogram (CIG) by evaluating respiratory sinus arrhythmia (RSA). A method based on the calculation of R-R interval differences in separate breathing cycles is used for automated reckoning of RSA. A band-pass filter is employed to separate out a respiratory constituent of CIG. The programmed algorithmic use of the method is based on a linear selective transformation that is a general procedure for morphological analysis of cardiac signals in real time.
authors.forename: V A
authors.initials: VA
authors.lastname: Kalantar
authors.forename: A V
authors.initials: AV
authors.lastname: Sivachev
mesh_terms: D000465:Algorithms; D001146:Arrhythmia, Sinus / Q000175:diagnosis*; D004562:Electrocardiography; D005583:Fourier Analysis; D006801:Humans; D008955:Models, Cardiovascular; D012121:Respiration, Artificial; D012815:Signal Processing, Computer-Assisted