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Fig. 1. —Graph shows adjusted mean change (with 95% confidence intervals) in total diagnostic quality score from unenhanced time-of-flight MR angiography to contrast-enhanced MR angiography with gadobenate dimeglumine. Note that greatest mean increase in total diagnostic quality score was observed for gadobenate dimeglumine dose of 0.1 mmol/kg of body weight. {diamondsuit} = off-site reviewer 1, {blacksquare} = off-site reviewer 2, {blacktriangleup} = on-site principal investigators.