Published in:
01-10-2020 | Original Article
Optimal ECG Lead System for Exercise Assessment of Ischemic Heart Disease
Authors:
Michał Kania, Roman Maniewski, Rajmund Zaczek, Małgorzata Kobylecka, Heriberto Zavala-Fernandez, Leszek Królicki, Grzegorz Opolski
Published in:
Journal of Cardiovascular Translational Research
|
Issue 5/2020
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Abstract
The diagnostic value of an ECG exercise test in diagnosis of ischemic heart disease (IHD) is limited. We investigated whether it is possible to develop a method for diagnosis of IHD which uses a low number of optimal ECG leads and has a higher diagnostic efficiency than conventional exercise ECG. This study was carried out on 43 patients. The 67-lead high-resolution ECG was recorded at rest and during exercise. The diagnostic value of ST segment depression (ΔST60) and T-wave morphology change (δT) determined in optimized ECG lead configurations was higher than for the standard 12-lead ECG. The best results were obtained for δT determined from 6 ECG electrode locations where sensitivity and specificity were 70% and 69% whereas for the standard exercise ECG were 63% and 62%, respectively. The small number of ECG leads used allows for easy hardware implementation of the methods for use in clinical settings.