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Holtersystem 2F allows analyzing of RR intervals in selected 5- or 10- min. time periods during 24 hours of monitoring, per hour mode, day-night mode. Analysis is performed in time period with computing of SDNN, SDNN Index, SDANN, RMSSD, NN50, pNN50, triangular index (TINN) and etc. Analysis ends with plotting of the intervalogram, scattergram and RR bar chart, and so provides all-embracing results. Artifacts and arrhythmia (extrasystoles, pauses) are automatically excluded from the processing during indexes computing of rhythm variability.
Spectral analysis of rhythm variability is performed in particular area with spectral capacity defining in ranges of total frequency spectrum (Tot power), ULF, VLF, LF, HF.