Radiographic anatomy of the coronary collateral circulation.

The selective coronary arteriograms of 100 patients with coronary disease were studied with large films and 35 mm. cinefilming.The examinations were analyzed for the presence of anastomoses and the preferential pathways of the collateral flow.We found that all anastomoses described in postmortem studies could be demonstrated with selective coronary arteriography, if a significant stenosis is present, and if proper equipment is used.