Selective coronary arteriography has been developed during the past decade in an attempt to provide a visual display of the anatomical structure and pathological changes of the coronary arteries. Nonselective methods of coronary arteriography have failed in the past to show consistently the details of the coronary arterial tree. On the other hand, with improved selective methods, coronary arteriography has become a valuable adjunct in the diagnosis of coronary heart disease. It is now possible to arrive at a more precise diagnosis when the complete clinical evaluation is correlated with the objective findings of coronary arteriography. We feel that selective coronary studies are done best by a team composed of an internist and a roentgenologist.
Selective arteriography may be performed by various techniques, each with advantages and disadvantages. Since the technique of Sones has been widely publicized,1 specific details will not be presented here. In contrast to the