title: Endoscopy and MR enteroclysis: equivalent tools in predicting clinical recurrence in patients with Crohn's disease after ileocolic resection.
abstract: BACKGROUND
  Ileocolonoscopy poses the gold standard in the evaluation of postoperative recurrence of Crohn's disease (CD) at the site of ileocolonic anastomosis. Magnetic resonance enteroclysis (MRE) on the other hand is a promising technique for small bowel imaging. The aim was to compare MRE and ileocolonoscopy for predicting clinical recurrence in CD patients who have undergone ileocolonic resection.
  
  
  METHODS
  We included 29 patients in the study. The median time since index operation was 35 months and between ileocolonoscopy and MRE was 3 days. Patients were followed up for a maximum of 2 years unless clinical recurrence occurred earlier. Endoscopic findings were evaluated on a 5-grade scale (i0-i4), whereas MRE findings on the neoterminal ileum and anastomosis were assessed according to a previously validated 4-grade scale MR score (MR0-MR3).
  
  
  RESULTS
  By classifying patients into subgroups of endoscopic severity of postoperative recurrence using as a threshold an endoscopic score of i3, we found that 10% of patients in the i0 to i2 group had a clinical recurrence during the 2-year follow-up period as compared to 52.6% of subjects with i3 to i4 (P = 0.043). The corresponding clinical exacerbation rates in the subgroups based on MRE severity assessment were 12.5% for MR0 to MR1 and 50% for MR2 to MR3 (P = 0.09).
  
  
  CONCLUSIONS
  Our data suggest that colonoscopy and MR enteroclysis are of similar value to predict the risk of clinical recurrence in postoperative patients with Crohn's disease.
authors.affiliation: Department of Internal Medicine III, Division of Gastroenterology, Medical University of Vienna, Austria.
authors.forename: Stavroula
authors.initials: S
authors.lastname: Koilakou
authors.forename: Johannes
authors.initials: J
authors.lastname: Sailer
authors.forename: Philipp
authors.initials: P
authors.lastname: Peloschek
authors.forename: Arnulf
authors.initials: A
authors.lastname: Ferlitsch
authors.forename: Harald
authors.initials: H
authors.lastname: Vogelsang
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Miehsler
authors.forename: Joel
authors.initials: J
authors.lastname: Fletcher
authors.forename: Karl
authors.initials: K
authors.lastname: Turetschek
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Schima
authors.forename: Walter
authors.initials: W
authors.lastname: Reinisch
mesh_terms: D000328:Adult; D000368:Aged; D003106:Colon / Q000473:pathology / Q000601:surgery; D003113:Colonoscopy; D003424:Crohn Disease / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012008:Recurrence; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D013997:Time Factors; D055815:Young Adult