Abstract
The management of patients with coronary artery disease has proved to be one of the most difficult problems in clinical medicine. In the recent past, increasing interest has been shown in the surgical treatment of this condition, and the direct removal of obstructing lesions from the coronary arteries by thromboendarterectomy has been successfully performed (1, 5, 13). The selection of patients for this procedure is facilitated by the accurate preoperative localization of the site of obstruction. Coronary arteriography provides the surgeon with this much needed information. Rousthoi was probably the first investigator to demonstrate the coronary arteries in the intact experimental animal (12). Since then, many methods have been devised for their visualization. Intravenous angiocardiography reveals the coronary arteries only rarely. Furthermore, the detail with this technic is usually unsatisfactory, as a result of the residual filling of the underlying ventricular system with opaque material. The first su...
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