MI - locations and blood supply

MI - locations and coronary blood supply

• • Anterior MI (localized): LAD, diagonal branches

  • Anterior MI (extensive): LAD, LCx a, anterolateral marginal branch

  • Septal MI: LAD, septal perforator branches

  • Lateral MI: LAD, diagonal, LCx a, anterolateral marginal branch

  • Anteroseptal MI: LAD, septal perforating and diagonal branches

  • Anterolateral MI: LAD, diagonal, LCx a, anterolateral marginal branch

  • Inferior MI: RCA or LCx a, post-L ventricular branches

  • Post MI: Distal LCx a and /or its posterolateral branch

  • R. ventricular MI: RCA

ECG Leads and Arterial Supply Assoc.

• • V1-V4:.anterior, LAD

  • V5-V6: lateral, LCx

  • aVL, V4-V6: lateral, LCx

  • II, III, and aVF: RCA, inferior

  • aVL, V5, and V6: Diagonal branch of LAD, marginal branch of LCx, LCx: anterolateral

  • V1-V3: LAD, anteroseptal

  • R/S ratio >1 in V1-V2 and reciprocal T inversion in V1: Distal Cx, PDA, or distal RCA, posterior.