On the basis of their wide knowledge in the field of radiological vascular diagnosis, includ- ing interventional radiology, the editors of this volume have achieved international as well as national recognition. Here they not only consider the technical features and clinical applications of magnetic resonance angiography in depth, but also document the results of comparative studies with other presently available imaging modalities. Central themes in the scientific work of Ingolf Arlart are the problems of renovascular hypertension and vascular aneurysms, and the use of interventional radiology within the context of vascular disease. Besides conducting intensive research and developmental work in various diagnostic areas of magnetic resonance imaging, Georg Bongartz has devoted particular attention to magnetic resonance angiography of the supra-aortic and brain-supplying arteries. The results of his clinical and radiological research found due recognition when he was pre- sented with the Wilhelm Conrad Rontgen Prize in 1992 by the German Radiological Society, and he has also received various other awards. This background makes ideally suited to be among the editors of the current volume, which provides an up-to-date summary of progress in radiological vascular diagnosis.