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 21 May 2018

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News

Helical CT in acute lower gastrointestinal bleeding

Helical CT could be a good diagnostic tool in acute lower GI bleeding, helping the physician diagnose the bleeding site, find researchers in the January issue of European Radiology.

News image

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In this study, researchers from Lille, France, assessed the usefulness of helical CT in depicting the location of acute lower GI bleeding.

The research team performed a 3-phase helical CT of the abdomen in 24 patients referred for acute lower GI bleeding.

The diagnosis of the bleeding site was established by CT when there was at least 1 of the following criteria:

  • spontaneous hyperdensity of the peribowel fat
  • contrast enhancement of the bowel wall
  • vascular extravasation of the contrast medium
  • thickening of the bowel wall
  • polyp or tumor
  • or vascular dilation.

Diverticula alone were not enough to locate the bleeding site.

Diagnosis of the primary lesion responsible for the bleeding was made in 10 patients.
European Radiology

The team compared the results of CT, with the diagnosis obtained by colonoscopy, enteroscopy, or surgery.

The researchers were able to make a definite diagnosis in 19 patients. The bleeding site was located in the small bowel in 5 patients and the colon in 14 patients.

The team found that CT correctly located 4 small bowel hemorrhages, and 11 colonic hemorrhages.

In addition, diagnosis of the primary lesion responsible for the bleeding was made in 10 patients.

Dr Olivier Ernst's team concluded, "Our results suggest that helical CT could be a good diagnostic tool in acute lower GI bleeding to help the physician to diagnose the bleeding site".

Eur Radiol 2003; 13: 114-7
27 January 2003

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