The percentage agreement between MRA and DSA for stenosis detection was similar for on-site readings for both groups ( mean SD , 80.6 % 16.1 % with gadoterate meglumine vs 77.1 % 19.6 % with gadobutrol ; 3.5 % difference ) , and the same was true for off-site readings ( 73.9 % 16.9 % with gadoterate meglumine vs 75.1 % 13.8 % with gadobutrol ; 1.1 % difference ) .