HSB and MN (Makoto Naganuma) contributed equally to this study.
Magnetic resonance enterocolonography is useful for simultaneous evaluation of small and large intestinal lesions in Crohn's disease†
Version of Record online: 25 OCT 2010
Copyright © 2010 Crohn's & Colitis Foundation of America, Inc.
Inflammatory Bowel Diseases
Volume 17, Issue 5, pages 1063–1072, May 2011
How to Cite
Hyun, S. B., Kitazume, Y., Nagahori, M., Toriihara, A., Fujii, T., Tsuchiya, K., Suzuki, S., Okada, E., Araki, A., Naganuma, M. and Watanabe, M. (2011), Magnetic resonance enterocolonography is useful for simultaneous evaluation of small and large intestinal lesions in Crohn's disease. Inflamm Bowel Dis, 17: 1063–1072. doi: 10.1002/ibd.21510
Supported in part by Health and Labour Sciences Research Grants for research on intractable diseases from Ministry of Health, Labour and Welfare of Japan.
- Issue online: 11 APR 2011
- Version of Record online: 25 OCT 2010
- Manuscript Accepted: 2 SEP 2010
- Manuscript Received: 1 SEP 2010
- magnetic resonance enterocolonography;
- Crohn's disease
We developed novel magnetic resonance enterocolonography (MREC) for simultaneously evaluating both small and large bowel lesions in patients with Crohn's disease (CD). The aim of this study was to evaluate the diagnostic performance of MREC by comparing results of this procedure to those of endoscopies for evaluating the small and large bowel lesions of patients with CD.
Thirty patients with established CD were prospectively examined by newly developed MREC. Patients underwent ileocolonoscopy (ICS) (24 procedures) or double-balloon endoscopy (DBE) (10 procedures) after MREC on the same day. Two gastroenterologists and two radiologists who were blinded to the results of another study evaluated endoscopy and MREC findings, respectively.
In colonic lesions the sensitivities of the MREC for deep mucosal lesions (DML), all CD lesions, and stenosis were 88.2, 61.8, and 71.4%, respectively, while the specificities were 98.1, 95.3, and 97.7%, respectively. In small intestinal lesions, MREC sensitivities for DML, all CD lesions, and stenosis were 100, 85.7, and 100%, respectively, while specificities were 100, 90.5, and 93.1%, respectively. Endoscopic scores were significantly correlated with MREC scores. Eleven (46%) of the 24 patients who were clinically not suspected to show stricture were observed to demonstrate stricture by radiologists.
Our results demonstrated that MREC can simultaneously detect the CD lesions of the small and large intestine. MREC can be performed without radiation exposure, the use of enema, or the placement of a naso-jejunal catheter. MREC and endoscopy have comparable abilities for evaluating mucosal lesions of patients with CD. (Inflamm Bowel Dis 2010;)