Inclusion Criteria:

• Study subjects must be adults with confirmed or suspected aorto-iliac stenosis.
• The subject must have been referred for Digital Subtraction Angiography.

Exclusion Criteria:

• The subject has a known hypersensitivity to either conventional X-ray or gadolinium based MR contrast media including, but not restricted to, the investigational product.
• The subject is lactating.
• The subject is pregnant as defined by a serum or urine beta-HCG pregnancy test obtained within 24 hours before administration of the investigational product.
• The subject received or is scheduled to receive MRI contrast medium within 24 hours prior to or less than 24 hours after administration of the investigational product.
• The subject received or is scheduled to receive X-ray contrast medium within 24 hours prior to or less than 24 hours after administration of the investigational product.
• The subject received an investigational product other than OMNISCAN (gadodiamide) within 30 days prior to OMNISCAN administration or will receive an investigational product within the follow-up period proposed for this study.
• The subject presents any clinically active, serious, life-threatening disease with a life expectancy of less than 6 months.
• The subject has a serum creatinine value of >= 3.5 mg/dL (309.4 µmol/L).
• The subject has previously been included in this study.
• The subject has a contra-indication for MRI according to accepted clinical guidelines.
• The subject has metal implants and/or stents in the aorto-iliac region and/or hip replacement.