Table 3.

Coronary dominance and branching types of the left coronary artery (LCA).

Case No.	Coronary dominance	Branching types of the LCA
1	Left	Type II
2	Left	Type III
3	Left	Type I
4	Right	Type II
5	Left	Type II
6	Right	Type II

Type I: a double-branched left main coronary artery (LMCA) that gives rise to the circumflex (Cx) and interventricular paraconal (Pc) branches, which further branches off and gives rise to the septal (S) branch.

Type II: a double-branched LMCA that gives rise to the Cx and Pc branches without an S branch.

Type III: a triple-branched LMCA that gives rise to the Cx, Pc, and S branches.