Vascular diagnostics traditionally rely on x-ray angiography. This approach remains even today essential in the clinical work-up of patients with vascular pathology. Recently, however, newer imaging modalities have been intro duced to assess vascular disease. Among these the color Doppler flow and magnetic resonance imaging appear the most promising. Due to their noninva sive character both methods are ideally suited for screening as well as serial follow-up of vascular patients. The emergence of color Doppler flow and magnetic resonance vascular imaging coincides with new concepts in...