Holter analysis software
Unique algorithms developed by our specialists over the past 30 years in close collaboration with leading Russian research and clinical institutions ensure accurate data processing and analysis and reliable results.
Building on this foundation, Astrocard® Holtersystem software continues to evolve and gain new features, including our patented methods.
Combining rapid analysis with high accuracy provides results that are convenient for physicians and support patient diagnosis and treatment. Cloud technologies and mobile-device support make the system more convenient and efficient to use.
ST-segment analysis
The dedicated ST-analysis program allows manual editing of automatic ST-segment level measurements taken at a set distance from the J point (0–80 ms) and of deviations from a calculated “floating” baseline.
To verify automatic measurements, the software provides trends for ST-segment level and heart rate, raw ECG, and ECG averaged over 15, 30 or 60 seconds.
Heart rate variability analysis
The Holter system can analyze RR-interval variability in any selected 5-minute period, throughout an entire 24-hour recording, by hour and in day/night mode. The analysis produces intervalograms, scattergrams and RR histograms. Artifacts and arrhythmias (extrasystoles and pauses) are automatically excluded when heart rate variability indices are calculated.
Ambulatory blood pressure monitoring (when BP recorders are used)
BP is measured using the oscillometric method. Data analysis calculates all standard ambulatory BP monitoring statistics (variability, hypertension and hypotension indices, pressure load, etc.) for the full 24-hour period and separately for daytime and nighttime periods. A “special time interval” can also be selected.
High-resolution signal-averaged ECG analysis
The Holter system can analyze a high-resolution signal-averaged ECG at any selected point in time using a specified time window, a specified number of QRS complexes, or a specified noise threshold.
PTADEF® technology
Clinically validated at leading cardiology centers, this method identifies the P wave of atrial ectopic impulses that merge with the T wave and enables analysis of its morphology.
QT-interval analysis
The system automatically measures the QT interval (to the apex and end of the T wave) and QT dispersion, assesses how these values depend on heart rate, and analyzes microvolt T-wave alternans.
Database management
A dedicated database management application enables the Holter system to store, organize and quickly retrieve ambulatory monitoring recordings and their analysis results.
24-hour recording and analysis of a standard 12-lead ECG
Until recently, a major limitation of Holter monitoring was the inability to perform a complete electrocardiographic analysis of the data because 2–3 leads provided insufficient information.
Clinical advantages of 24-hour (Holter) 12-lead monitoring:
Comprehensive analysis of ischemic ECG changes
Comprehensive analysis of cardiac arrhythmias, including localization of ventricular and atrial tachycardias
Direct comparison of 24-hour ECG recording segments with ECGs obtained during exercise testing
Spectral analysis
of heart rate variability
Performed in the frequency domain, with determination of spectral power in the total frequency spectrum (Total power) and the ULF, VLF, LF and HF bands. Heart rate turbulence analysis is also available.
Pacemaker
analysis
The system can analyze malfunctions in the main types of pacemakers currently in use. The analysis is based on a dedicated recorder's ability to automatically detect pacing artifacts and assess pacing parameters in atrial and ventricular leads independently of background cardiac electrical signals and associated noise.
