title: Unidirectional coronary collateral blood flow in a patient with congenital anomaly of a coronary artery: an angiographic artefact.
abstract: A 53-year-old female underwent coronary arteriography for evaluation of chest discomfort. A congenital anomaly of a large interconnecting vessel between the right coronary and circumflex arteries was documented. Selective injection of the right coronary artery resulted in visualization of the circumflex branch of the left coronary through a large interconnecting vessel. Through careful analysis of the left ventriculogram and coronary arteriograms, it appears that retrograde filling of the circumflex artery during right coronary injection is an angiographic artefact.
authors.affiliation: Division of Cardiology, University of Alberta, Edmonton.
authors.forename: M
authors.initials: M
authors.lastname: Haraphongse
authors.forename: R E
authors.initials: RE
authors.lastname: Rossall
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography; D003097:Collateral Circulation; D003330:Coronary Vessel Anomalies / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged