J Thorac Cardiovasc Surg 1997;113:961
© 1997 Mosby, Inc.
Coronary arteries arising from the contralateral aortic sinus: Electron beam computed tomographic demonstration of the initial course of the artery with respect to the aorta and the right ventricular outflow tract
Robert H. Anderson BSc, MD, FRCPath
Department of Paediatrics
Imperial College School of Medicine
National Heart & Lung Institute
London SW3 6LY, United Kingdom
To the Editor:
In the September issue of this Journal, Mousseaux and colleagues 1 present an elegant demonstration of the efficiency of computed tomography in demonstrating the anomalous course of coronary arteries arising from an inappropriate aortic sinus or from another coronary artery. Their technique also provides, I would suggest, an outstanding opportunity to hone our knowledge of cardiac morphology. Thus they argue that their Fig. 2 shows the left coronary artery crossing the "upper part of interventricular septum." In that the interventricular septum separates the cavities of the right and left ventricles, and in that the cavity of the left ventricle is not seen in these sections, it seems to me that their interpretation is an anatomic impossibility. If the artery does, indeed, possess an intramyocardial segment, then surely it must be within the free-standing parietal wall of the right ventricle, which forms the subpulmonary infundibulum.
Mousseaux E, Hernigou A, Sapoval M, Darmon O, Beyssen B, Gaux J-C. Coronary arteries arising from the contralateral aortic sinus: electron beam computed tomographic demonstration of the initial course of the artery with respect to the aorta and the right ventricular outflow tract. J Thorac Cardiovasc Surg 1996;112:836-40.[Free Full Text]