title: [Selective CT mesentericography in the diagnostics of obscure overt intestinal bleeding: preliminary results].
abstract: OBJECTIVE
  To evaluate intra-arterial CT mesentericography (CTM) in the diagnostics of severe obscure overt intestinal bleeding in comparison with conventional mesentericography (MG) and surgery.
  
  
  METHODS
  In 8 patients (23 - 82 years, mean 59 years), CTM was performed via the catheter left in the superior mesenteric artery after MG to detect the source of bleeding. Early and late-phase spiral CT scans were acquired after administration of contrast medium. Active bleeding was considered to be present if extravasation of contrast medium into the bowel was found. The results of MG and CTM were compared with the results of surgery.
  
  
  RESULTS
  With MG active bleeding was found in one patient, with CTM in five patients. In three patients, both MG and CTM were negative. Six patients underwent surgery. Five cases of bleeding detected with CTM were confirmed by surgery. In one case, bleeding found with CTM was not confirmed by surgery. One patient underwent surgery although all imaging procedures were negative. The source of bleeding remained unknown. Surgically, the site of bleeding was located in the jejunum in 3 patients (jejunitis, jejunal ulcers, carcinoid), one patient had a diverticulum in the ascending colon. The colonic bleeding site was correctly localized with CTM, whereas the small bowel bleeding could only roughly be assigned to the proximal or distal jejunum or jejunoileal transition area.
  
  
  CONCLUSIONS
  Preliminary results indicate that selective CTM is superior to MG in the evaluation of severe obscure overt intestinal bleeding.
authors.affiliation: Klinik für Radiologische Diagnostik, Universitätsklinikum der RWTH Aachen, Germany. schuerm@rad.rwth-aachen.de
authors.forename: K
authors.initials: K
authors.lastname: Schürmann
authors.forename: A
authors.initials: A
authors.lastname: Bücker
authors.forename: M
authors.initials: M
authors.lastname: Jansen
authors.forename: J
authors.initials: J
authors.lastname: Tacke
authors.forename: T
authors.initials: T
authors.lastname: Schmitz-Rode
authors.forename: R W
authors.initials: RW
authors.lastname: Günther
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography / Q000379:methods*; D002276:Carcinoid Tumor / Q000150:complications / Q000000981:diagnostic imaging; D004241:Diverticulum, Colon / Q000150:complications / Q000000981:diagnostic imaging; D005119:Extravasation of Diagnostic and Therapeutic Materials; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000000981:diagnostic imaging* / Q000209:etiology*; D006801:Humans; D007249:Inflammation / Q000150:complications / Q000000981:diagnostic imaging; D007579:Jejunal Diseases / Q000150:complications / Q000000981:diagnostic imaging; D007580:Jejunal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging; D008297:Male; D017538:Mesenteric Artery, Superior / Q000000981:diagnostic imaging*; D008875:Middle Aged; D012307:Risk Factors; D014057:Tomography, X-Ray Computed / Q000379:methods; D014456:Ulcer / Q000150:complications / Q000000981:diagnostic imaging