The authors prospectively compared single dose ( 0.1 mmol/kg bodyweight ) gadobenate dimeglumine with double dose ( 0.2 mmol/kg bodyweight ) gadopentetate dimeglumine for contrast-enhanced magnetic resonance angiography ( CE-MRA ) in patients with suspected or known steno-occlusive disease of the carotid , renal or peripheral vasculature using an intra-individual crossover study design .