"when the right coronary artery gives rise to the posterior descending artery, this defines a right dominant circulation (70% population)"
"contribution from both the right coronary artery and left circumflex artery defines a co-dominant circulation (20%)"
"the least common (10%) variant is a left dominant circulation in which the left circumflex artery continues as the PDA"
"posterior left ventricular branches (PLV, PLB or PLA)"
"posterior left ventricular branches (PLV, PLB or PLA)"
"posterior left ventricular branches (PLV, PLB or PLA)"
"PDA and PLV as terminal branches"
"PDA as the only terminal branch (in which the PLV is supplied by the LCx)"
"Kugel's artery"
Expected headings
"Coronary dominance"
"Variations in origin"
"Variations in branching"
"Variations in course"
"Coronary angiography"
"After a sharply horizontal course from the aorta, the proximal segment of the right coronary artery courses inferiorly and to the right, posterior to the pulmonary trunk and beneath the right atrial appendage. The mid-right coronary artery curves inferiorly within the plane of the atrioventricular groove. The distal segment curves toward the cardiac crux as it travels along the posterior interventricular groove, with a subsequent bifurcation forming the posterior left ventricular branch and the posterior descending artery (PDA); the formation of the latter defines coronary arterial dominance 5."
"In angiography and CTCA, the RCAis described as having proximal, mid and distal segments:"
"posterior left ventricular branches (PLV, PLB or PLA)"