Oral contrast agents

Positive contrast : T1 hypersignal

• Gadolinium chelates: Magnevist enteral®, Gadolite®
• Manganese chelates: Lumenhance®
• Ferric amonium citrate: Ferriseltz®

 

Negative contrast : T2 hyposignal

• SPIO: Lumirem®, Gastromark®
• Barium sulfate
• Blueberry or pineapple juice