Comparative study of measured heart cycle phase durations: standard lead ECG versus original ascending aorta lead ECG

Original research

Comparative study of measured heart cycle phase durations: standard lead ECG versus original ascending aorta lead ECG

Sergey V. Kolmakov1*

1 Oy Cardiocode-Finland Ltd., Dunckerinkatu 5 as. 1, FIN-70500 Kuopio, Finland

* Corresponding author:
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Aims

The present paper aims at evaluating the existing difference in duration measurements of the same heart cycle phases in the standard V3, V4, V5, V6 leads ECG versus original HDA lead ECG of the ascending aorta.

Materials and methods

The method of changing the filter pass band is used. Its essence is in artificial changing of the conditions of the signal recording carrying the informative indications of the initial information used in hemodynamic equations. The method also enables calculating the percentage deviation from the initial values. The principle of balance of the blood volume entering the heart and the blood volume leaving the heart is used to trace the minimal deviations and their respective recording conditions.

Results

In each of the V3, V4, V5, V6 ECG leads durations of the same phases have different values. The values measured on the ECG of the ascending aorta and those measured using the standard V4 ECG lead differ slightly.

Conclusion

For heart cycle phase analysis it is possible to use only the ECG of the ascending aorta and V4 standard lead ECG. Using conventional standard ECG leads causes an error up to 25%.

Imprint

Sergey V. Kolmakov. Comparative study of measured heart cycle phase durations: standard lead ECG versus original ascending aorta lead ECG; Cardiometry; No.1; November 2012; p.143-150; DOI:10.12710/cardiometry.2012.1.142149 Available from: http://www.cardiometry.net/issues/no1-november-2012/heart-cycle-phase-durations

Keywords

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