title: Absent Vascular Signal on Time-of-Flight Magnetic Resonance Angiography Due to Recent Ferumoxytol Infusion.
abstract: Time-of-flight magnetic resonance angiography is used for craniocervical arterial evaluation. Absent flow-related signal may be the result of slow flow, complex flow, or focal susceptibility effects. We report a case with complete absence of flow-related signal in the intracranial and cervical vessels due to ferumoxytol infusion given 5 days before magnetic resonance angiography. Ferumoxytol is a newly approved parenteral therapy for iron-deficiency anemia in patients with renal failure and awareness of this drug-magnetic resonance imaging interaction is needed.
authors: From the Neuroradiology Section, Department of Radiology, University of Alabama at Birmingham, Birmingham, AL.
authors: Aparna
authors: A
authors: Singhal
authors: Joel K
authors: JK
authors: Curé
mesh_terms: D000369:Aged, 80 and over; D001921:Brain / Q000098:blood supply / Q000000981:diagnostic imaging; D002533:Cerebral Angiography / Q000379:methods*; D005260:Female; D052203:Ferrosoferric Oxide / Q000008:administration & dosage*; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods; D020765:Intracranial Arterial Diseases / Q000000981:diagnostic imaging*; D018810:Magnetic Resonance Angiography / Q000379:methods*; D057947:Parenteral Nutrition Solutions / Q000008:administration & dosage*
chemical_list: D057947:Parenteral Nutrition Solutions; D052203:Ferrosoferric Oxide