Key result
Time-variant partial directed coherence analysis successfully identified respiration-related cardiac aliasing components and separated them from respiratory sinus arrhythmia.
Population
Simulated data and clinical data from full-term neonates and sedated patients
Design
Other
Authors
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tvPDC may distinguish aliasing from RSA in HRV; hypothesis-generating and requires validation before clinical use.
Time-variant partial directed coherence is a useful methodological tool to prevent misinterpretation of respiratory sinus arrhythmia in heart rate variability analyses.
Milde et al. (2011) studied Heart rate variability analysis. Time-variant partial directed coherence (tvPDC) was evaluated on Identification and separation of respiration-related HRV components. Time-variant partial directed coherence analysis successfully identified respiration-related cardiac aliasing components and separated them from respiratory sinus arrhythmia.
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