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Coronary angiography and interventional cardiology.

The purpose of coronary arteriography is to image the pathoanatomic morphology fundamental to diagnosis and therapy. Interventional cardiology aims to eliminate the pathologic substrate as completely as possible. The interventional techniques and the assessment of their success are based on an exact geometric and, in particular, functional analysis of coronary artery stenoses. Recent progress in coronary arteriography has involved, firstly, quantification of structural and functional aspects. Secondly, the direct application of the information provided, which permits immediate diagnosis and treatment, demands real-time availability and maximum quality, especially for imaging difficult geometric conditions.