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A potentially artifact-free oral contrast agent for gastrointestinal MRI
1Department of Radiology, University of Florida College of Medicine, Gainesville.
Magnetic Resonance in Medicine
|November 1, 1993
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.