title: [MRI of the small intestine with rapid MRI sequences in Crohn disease after enteroclysis with oral iron particles].
abstract: OBJECTIVE
  To evaluate the efficacy of breathhold MRI following enteroclysis with addition of oral magnetic particles to study the extension, detection of stenoses and extraluminal manifestations in Crohn's disease.
  
  
  METHODS
  18 patients with Crohn's disease and potential of surgical intervention were studied with enteroclysis with addition of oral magnetic particles. T1-/T2-weighted breathhold MRI w/o spectral fat suppression w/o i.v. Gd-DTPA was applied.
  
  
  RESULTS
  Typical findings were marked bowel wall thickening with strong contrast enhancement. 95.8% of affected small bowel segments and 94.7% of stenoses were correctly detected by MRI. All four fistulas were detected and important extraluminal findings were seen in 6/18 patients. Additionally, one ileoileal and two ileosigmoidal adhesions, two extraluminal abscesses and affection of the right ureter were delineated.
  
  
  CONCLUSIONS
  MRI in Crohn's disease offers the potential to avoid radiation exposure in this relatively young patient group. Important additional findings relevant to indication of surgery are seen in approximately one third of cases. The replacement of transduodenal intubation by oral contrast application remains to be further studied.
authors.affiliation: Institut für Radiologische Diagnostik, Klinikum Grosshadern, Ludwig-Maximilians-Universität, München.
authors.forename: N
authors.initials: N
authors.lastname: Holzknecht
authors.forename: T
authors.initials: T
authors.lastname: Helmberger
authors.forename: C
authors.initials: C
authors.lastname: von Ritter
authors.forename: J
authors.initials: J
authors.lastname: Gauger
authors.forename: S
authors.initials: S
authors.lastname: Faber
authors.forename: M
authors.initials: M
authors.lastname: Reiser
mesh_terms: D000284:Administration, Oral; D000293:Adolescent; D000328:Adult; D003287:Contrast Media; D003424:Crohn Disease / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D007082:Ileum / Q000473:pathology; D007089:Image Enhancement; D007412:Intestinal Fistula / Q000175:diagnosis / Q000601:surgery; D007413:Intestinal Mucosa / Q000473:pathology; D007415:Intestinal Obstruction / Q000175:diagnosis / Q000601:surgery; D007501:Iron; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity
chemical_list: D003287:Contrast Media; D007501:Iron; D019786:Gadolinium DTPA
vernacular_title: Dünndarm-MRT mit schnellen MR-Sequenzen bei Morbus Crohn nach Enteroklysma mit oralen Eisenpartikeln.