Overview Pulmonary MR Angiography and Lower Extremity MR Venous Imaging Using Gadofosveset (Ablavar) Status: Completed Trial end date: 2013-04-01 Target enrollment: Participant gender: Summary The use of the contrast agent, Ablavar, will help with the diagnosis of pulmonary embolism in magnetic resonance imaging (MRI). Details Lead Sponsor: Washington University School of MedicineCollaborator: Lantheus Medical Imaging