Clinical application of on oral MR contrast agent ferric ammonium citrate

Objective: To investigate the efficiency of oral ferric ammonium citrate (FAC) as a negative gastrointestinal contrast agent in magnetic resonance imaging. Methods: Altogether 50 patients were selected. MRCP was performed for twenty patients; MRU, for twenty patients; and pelvic MR, for ten patients. Image assessment was based on the difference between non-oral FAC and oral FAC by same parameters. Results: MRCP performed 15 minutes after oral FAC could delete effectively interference of liquid in the stomach and duodenum. MRU and pelvic MR performed 40 minutes after oral FAC could delete effectively interference of liquid in the jejunum, ileum and colon. Conclusion: The clinical application of oral ferric ammonium citrate as a negative gastrointestinal contrast agent can improve image quality significantly in MRCP, MRU and pelvic MR. (authors)