[Experience with the Contrac III syringe in carotid angiography (author's transl)]

Report on a comparison between the use of the Contrac III syringe and manual injection for carotid angiography. 100 cases of injector angiograms were compared with 100 unselected manual arteriograms. The injector angiograms needed less contrast fluid and were distinctly better than the manual angiograms. Evaluation was based on the frequency of visualization of the posterior cerebral artery, the anterior cerebral arteries on either side and the filling of lenticulostriary vessels. Using the injector raises the percentage of bilateral filling of the anterior cerebral artery; the posterior cerebral artery, too, is rendered visible much more often. The quality of filling of the basal arteries depends largely on the speed of the injection. According to our present experience complications with the injector are no more frequent than with manual injection. Injection with the Contrac III syringe is, therefore, a definite advance, since it permits producing angiograms of very good, even, reproducible quality.