Felis ISSN 2398-2950

Radiology: gastrointestinal tract

Contributor(s): Fraser J McConnell

Introduction

Overview

  • Radiological examination forms a vital role in the investigation of gastrointestinal tract disease.
  • Radiography allows evaluation of shape and position of gastrointestinal tract.

Significant gastrointestinal disease may be present despite normal radiological appearance.

  • Contrast radiography is required for full evaluation of the gastrointestinal tract.

Radiographic considerations

  • Positional radiography is often useful particularly in gastric disease.
  • Taking both lateral projections  may reduce risk of missing gastric masses.
  • A low KVp and high mAs should be used to maximize contrast of abdominal radiographs.
  • Care should be taken to include the entire gastrointestinal tract for most investigations.
  • A table-top technique and detail film-screen combination should be used.

Restraint

Sedation and general anesthesia will affect gastrointestinal motility.

Indications

  • Vomiting.
  • Suspected foreign body.
  • Abdominal pain.
  • Weight loss.
  • Melena.
  • Chronic diarrhea.
  • Investigation of abdominal masses.

Ultrasonography    Ultrasonography: GI system  often allows a more detailed evalaution of the gastrointestinal tract.

Radiographic anatomy

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Interpretation

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Other imaging modalities

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Further Reading

Publications

Refereed papers
  • Fluke M H, Hawkins E C, Elliott G S & Blevins W E (1989)Short colon in 2 cats and a dogJAVMA195, 87.


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