Laurent Milot, Abstract Co-Author: Nothing to Disclose

Olivier Monneuse MD, Abstract Co-Author: Nothing to Disclose

Jean-Alain Chayvialle, Abstract Co-Author: Nothing to Disclose

Frank Pilleul, Presenter: Nothing to Disclose

To evaluate MDCT in acute lower gastrointestinal bleeding with endoscopic and surgical examinations as gold standard.

We have designed a single center retrospective study including 34 patients with acute lower gastrointestinal bleeding. All patients were explored by MDCT then endoscopic or surgical examinations. Sensitivity, specificity, positive and negative predictive values of the MDCT were calculated, using the extravasation of the contrast agent as main criterion.

Extravasation of the contrast agent was found in 30 of 34 patient (88%). The bleeding site seen on CT was always the same on endoscopic or surgical examination.(100 %). Sensitivity of MDCT was 94%, specificity 100%, PPV 100%, NPV 50% (p<0.001). 12 diverticular bleeding were seen on MDCT in regard to 13 (92%) on endoscopic or surgical examinations. Angiodysplasia was surestimated by MDCT.

MDCT appears as an excellent tool to find a bleeding site in case of acute lower gastrointestinal disease.

MDCT appears as an excellent tool to find a bleeding site in case of acute lower gastrointestinal disease.

Milot, L, Monneuse, O, Chayvialle, J, Pilleul, F, MDCT in Acute Lower Gastrointestinal Bleeding.  Radiological Society of North America 2007 Scientific Assembly and Annual Meeting, November 25 - November 30, 2007 ,Chicago IL. http://archive.rsna.org/2007/5006728.html