Barium swallow
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Overview
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A barium swallow is a medical imaging procedure used to examine the upper GI (gastrointestinal) tract, which includes the oesophagus and, to a lesser extent, the stomach.
Principle
Barium sulphate is a type of Contrast medium that is visible to x-rays. As the patient swallows the Barium suspension, it coats the oesphagus with a thin layer of the barium. This enables the hollow structure to be imaged.
Examination
The patient is asked to drink a suspension of barium sulfate. Fluoroscopy images are taken as the barium is swallowed. This is typically at a rate of 2 or 3 frames pers second. The patient is asked to swallow the Barium a number of times, whilst standing in different positions, i.e. AP, oblique and lateral, to assess the 3D structure as best possible.
Pathology
Pathologies detected on a Barium Swallow include:
- Achalasia
- Oesophageal pouch
- Cancer of oesophagus
- Tracheoesophageal fistula
- Schatzki ring
- Reflux
- Zenker's diverticulum
- Hiatus hernia
See also
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
