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[Coronary arteries and coronary artery bypass in CT: options, limitations and perspectives].

Computed tomography examination of coronary arteries and aortocoronary bypass grafts would theoretically be a noninvasive alternative to the selective coronary angiography and could, therefore, potentially be used as a screening method for coronary heart diseases. Especially since the introduction of fast and ultrafast CT-methods (spiral-CT and electron beam-CT) many investigations have focused on this subject. On the basis of our own work as well as the experience of other authors, this article summarizes the options, limitations, and clinical relevance as well as the future perspectives of modern computed tomography techniques for the visualization of coronary arteries, coronary artery calcifications, myocardial perfusion, and aortocoronary bypass patency.