Gastrointestinal contrast agents: a diamagnetic approach.
The clay minerals kaolin and bentonite are demonstrated as gastrointestinal contrast agents for MRI. Weak field dependence of the relaxation efficiency assures effectiveness of these agents at all field strengths in clinical use. These agents eliminate signals from their immediate environment and are not toxic.
Listinsky
J J
JJ
Department of Radiology, University of Rochester Medical Center, New York 14642.
Bryant
R G
RG
D001546:Bentonite; D003287:Contrast Media; D004064:Digestive System / Q000033:anatomy & histology*; D006801:Humans; D007616:Kaolin; D008279:Magnetic Resonance Imaging
D003287:Contrast Media; D001546:Bentonite; D007616:Kaolin