Equis ISSN 2398-2977

Gastrointestinal: gastric emptying - scintigraphy

Contributor(s): Russel Malton, Rachel Murray

Introduction

  • Gastric emptying can be measured using scintigraphy. In horses it has been used to evaluate the effects of prokinetic drugs. 
  • In humans and small animals this technique is used to document outflow obstructions and determine and monitor the response to medical or surgical treatment.
  • Normal gastric peristalsis is biphasic with contraction followed by relaxation of the pyloric sphincter resulting in the larger particles remaining in the cardia whilst the smaller particles and fluid empty rapidly. By this means 75% of fluid should leave the stomach within 30 min of ingestion while solid food remains considerably longer.  Simultaneous dual radionuclide acquisitions can be used to measure both solid and liquid-phase gastric emptying.

Requirements

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Preparation

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Procedure

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Neuwirth L, Merritt A M, Lester G (1995) Dual-phase gastric emptying in horses. Vet Radiol.

Other sources of information

  • Berry C B, Hornof W J, Steyn P (1996)Gastrointestinal Scintigraphy.In:Handbook of Veterinary Nuclear Medicine.Eds: Berry C B & Daniel G B. North Carolina State University, Raleigh, NC, USA. pp 138-142.
  • Fenger C K, Bertone A L, Bertone J Jet al(1998)Gastrointestinal motility and adynamic ileus.In:Equine Internal Medicine. Eds: Reed S K & Bayly W M. W B Saunders, Philadelphia. pp 207-215.


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