Identify


ECG leads to cardiac anomaly

ECG leads and corresponding cardiac anomaly

I and AVL
Left circumflex

V5-V6
Left circumflex and possibly LAD

V3-V4
LAD

V1-V2
septal infarct branches of LAD or branches of Right coronary

II, III and AVF
Inferior MI
Right Coronary and right marginal artery

Left Main Coronary artery MI leads
The left main coronary artery gives rise to the LAD and left circumflex arteries. Therefore, left main coronary artery occlusion typically results in anterolateral infarction, which corresponds to ST elevation in the anterior (eg, V1-V4) and lateral (V5-V6, I, and aVL) leads.