title: A potentially artifact-free oral contrast agent for gastrointestinal MRI.
abstract: The combination of diamagnetic barium sulfate and superparamagnetic iron oxide (SPIO) in one suspension produces a macroscopic cancellation of positive and negative magnetic susceptibility components that can potentially eliminate susceptibility artifacts even with gradient echo pulse sequences. The relaxation properties that make the SPIO suspension a useful negative contrast agent are retained.
authors.affiliation: Department of Radiology, University of Florida College of Medicine, Gainesville.
authors.forename: T
authors.initials: T
authors.lastname: Liebig
authors.forename: C
authors.initials: C
authors.lastname: Stoupis
authors.forename: P R
authors.initials: PR
authors.lastname: Ros
authors.forename: J R
authors.initials: JR
authors.lastname: Ballinger
authors.forename: R W
authors.initials: RW
authors.lastname: Briggs
mesh_terms: D000284:Administration, Oral; D016477:Artifacts; D001466:Barium Sulfate / Q000008:administration & dosage; D003287:Contrast Media / Q000008:administration & dosage*; D004064:Digestive System / Q000033:anatomy & histology*; D052203:Ferrosoferric Oxide; D006801:Humans; D007501:Iron / Q000008:administration & dosage; D008279:Magnetic Resonance Imaging; D008961:Models, Structural; D010087:Oxides / Q000008:administration & dosage
chemical_list: D003287:Contrast Media; D010087:Oxides; D001466:Barium Sulfate; D007501:Iron; D052203:Ferrosoferric Oxide