Coronary Arteriography

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Abstract
CURRENT interest in the possibilities of surgical reconstruction of occluded coronary arteries is reflected in efforts to develop safe and reliable methods for coronary arteriography.1 2 3 4 5 To be useful clinically, coronary arteriography must be free from local harmful effects and must so regularly fill all major patent vessels that nonfilling may be taken as evidence of occlusion. Although good coronary arteriograms can be obtained with prevailing technics, they are too often inadequate in quality and completeness of contrast filling to be reliable.2 , 6 Most efforts to improve the diagnostic merit of coronary arteriograms have been directed toward increasing the volume and rate . . .