PT - JOURNAL ARTICLE AU - H M Ingstrup AU - S Laulund TI - Clinical testing of omnipaque and amipaque in external carotid and vertebral angiography: randomized double-blind crossover study. DP - 1983 Sep 01 TA - American Journal of Neuroradiology PG - 1097--1099 VI - 4 IP - 5 4099 - http://www.ajnr.org/content/4/5/1097.short 4100 - http://www.ajnr.org/content/4/5/1097.full SO - Am. J. Neuroradiol.1983 Sep 01; 4 AB - Omnipaque, 300 mg l/ml, was compared with Amipaque, 300 mg l/ml, for cerebral angiography. Twelve patients were included in a randomized, double-blind, crossover study. Twenty comparisons were made in the external carotid and 21 in the vertebral artery, Both contrast media caused no or minor changes in blood pressure and heart rate. Good to excellent radiographic visualization of the cerebral arteries was obtained with both agents. The frequency of subjective reactions was almost equal, but the intensity of the reactions was less with Amipaque. No severe reactions were observed. Omnipaque is a more practical nonionic contrast medium than Amipaque because it is delivered in ready-to-use solutions.