Acute Gastrointestinal Bleeding

  • Benoit Paul Gallix
Part of the Medical Radiology book series (MEDRAD)


Gastrointestinal (GI) bleeding can be subdivided into two categories: acute and clinically overt GI bleeding (hematemesis, melena, and hematochezia) or occult bleeding, identified by an unexplained iron deficiency or positive fecal occult blood testing result, or both. This chapter gives an overview of the epidemiology, clinical findings, and available diagnostic modalities in assessing GI bleeding. We discuss and illustrate the technique, advantages, and limitations of contrast-enhanced multidetector computed tomography for the diagnosis of acute GI bleeding.


Oral Contrast Medium Positive Fecal Occult Blood Testing Portal Venous Phase Image Contrast Medium Extravasation Fecal Occult Blood Testing Result 
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© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.Department of Abdominal ImagingSaint Eloi University Hospital-CHU de MontpellierMontpellier Cedex 5France

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