MRI Contrast Agents. Mark D. Herbst, M.D., Ph.D. Contrast Agents. Types Paramagnetic Superparamagnetic Diamagnetic. Comparison with X-ray Contrast. In radiography (barium enema, UGI series, angiography, arthrography, etc.) we image the contrast agent itself.
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MRI Contrast Agents
Mark D. Herbst, M.D., Ph.D.
Iron Magnetite, superparamagnetic agent
Makes liver black on T2WI, mets show up as bright white.
Figure 3. MR colonography
Geenen, R. W. F. et al. Radiographics 2004;24:e18
Copyright ©Radiological Society of North America, 2004
Juices "Contrast agents" – orange juice (OJ), grapefruit juice (GJ), apple juice (AJ), pineapple juice (PJ), milk (M), prune juice (P), cranberry juice (CJ), blueberry and apple juice (BAJ), barium EZ Cat 2% w/v (B), dilute barium (50:50 with water) (DB), concentrated gastrografin (GG), ferumoxsil (F) and water (W).