[Intravenous subtraction angiography as a control examination following blood vessel surgery].

21 patients were examined after different, mostly peripheral vessel operations by intravenous angiography in combination with photographic subtraction. In all cases there was a diagnostic reliability on the documented findings. Structure of vessel-side, morphology of stenoses, formation of a collateral circulation, functioning of bypasses and arteriovenous shunts could be judged sufficiently by the conventional intravenous subtraction angiography (ISA). As a convenient method for the control of the arterial vessel side after vessel operation and angioplasty, the ISA is a suitable method when the digital subtraction angiography is not available. The image quality of the ISA at present is at least equivalent to that of the DVSA .