Risk of Nephrogenic Systemic Fibrosis (NSF) in Patients With Moderate Renal Insufficiency After the Administration of Magnevist

Prospective Non-randomized Observational (Pharmacoepidemiologic) Cohort Study (Open-label, Multicenter) to Assess the Magnitude of Potential Risk With the Administration of Magnevist® Injection in Patients With Moderate Renal Impairment for the Development of Nephrogenic Systemic Fibrosis (NSF) Based on Diagnostically Specific Clinical and Histopathologic Information.

Assess potential risk for NSF in subjects with renal impairment (moderate) post magnevist injection. Subjects will be screened within 48 hours of previously scheduled MRI, those meeting the enrollment criteria will be enrolled prior to MRI and followed for 2 years post MRI with visits occuring at 1yr and 2 yr timepoints, in addition follow-up phone calls conducted at 1, 3, 6 and 18 months to assess for skin changes suggestive of NSF.

Inclusion Criteria:

• Patients must have moderate (eGFR 30-59 ml/min/1.73 m^2) renal impairment and be scheduled for a contrast enhanced MRI with Magnevist Injection at the recommended dose of 0.1 mmol/kg.

Exclusion Criteria:

• Gadolinium Based Contrast Agent (other then Magnevist) enhanced MRI within 12 months prior to administration of Magnevist
• History of NSF
• Clinically unstable or age <2 yrs