The purpose of this study was to evaluate whether the 12-lead ECG could be substituted by ECG sets with a limited number of leads. Materials and methods: The performance of three ECG systems (ie ...

The resting electrocardiogram (ECG) furnishes essential information ... calculated sums of the amplitudes of QRS complexes of all 12 leads, or the 6 limb leads, or only leads I and II.

that clearly demonstrates how to implement a single-lead ECG. Although obviously not a medical-grade instrument, it still contains all the basic components that make up a proper biosignal sensing ...