ECG 12 Channel

What are the 12 channels of ECG?

Thus, all 12 channels ( I,II,III, aVR, aVL, aVF and V1-V6 ) of the ECG Machine report will be printed one by one on the paper. Such type of ECG Machine used has a multi-positioning switch, by selecting the switch the desired lead connection can be selected.

What does channel mean in ECG?

Each channel represents the differential voltage between two of the electrodes or the differential voltage between one electrode and the average voltage from several electrodes.