[Angiomorphology of arteriosclerotic changes in the area of the carotid bifurcation].

100 intravenous digital subtraction angiograms of bifurcations were compared to one hundred plain film arteriograms. Both types of examinations were of excellent image quality. Arteriosclerotic lesions in the posterior circumference of the internal carotid artery were found in 55% plain film angiograms and in 49% of intravenous DSA examinations. Plain film angiography was significantly more accurate in the evaluation of arteriosclerotic ulcerations than i.v. DSA. The total amounts of arteriosclerotic stenoses with a smooth or rough surface were equal with both methods. The interindividual comparative study demonstrated that in respect of diagnosis of ulcerative lesions, i.v.. DSA is inferior to plain film angiography, even if an excellent image quality for all projections is achieved in i.v. DSA.