title: MR appearance of extravasated gadolinium contrast medium.
abstract: This case illustrates that a large zone of signal void can be produced on short relaxation time MR images when gadopentate dimeglumine is injected through an infiltrated intravenous catheter. The authors consider the physics behind this paradoxical decrease in signal intensity where there are high concentrations of gadopentate dimeglumine.
authors.affiliation: Radiology Department Baylor College of Medicine, Houston, Texas 77030.
authors.forename: D A
authors.initials: DA
authors.lastname: Carrier
authors.forename: J J
authors.initials: JJ
authors.lastname: Ford
authors.forename: L A
authors.initials: LA
authors.lastname: Hayman
mesh_terms: D003287:Contrast Media / Q000008:administration & dosage; D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000175:diagnosis*; D019786:Gadolinium DTPA; D006801:Humans; D007275:Injections, Intravenous; D007601:Jugular Veins; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009333:Neck / Q000473:pathology; D009942:Organometallic Compounds / Q000008:administration & dosage / Q000009:adverse effects*; D004369:Pentetic Acid / Q000008:administration & dosage / Q000009:adverse effects*
chemical_list: D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D019786:Gadolinium DTPA