Gastrointestinal Radiology > Procedures > Barium Swallow > Conventional (7)
Barium Swallow: the thoracic esophagus (cont.)
The Barium Tablet |
The barium tablet
(BAR-TEST®, Glenwood, Inc., Tenafly, NJ) is used to detect subtle esophageal
strictures. In addition, the tablet of known diameter (1/2 inch or 12.7 mm)
provides a gauge for determining the true size of the residual lumen at the
site of an esophageal ring or stricture. A tablet diameter of 1/2 inch was
selected for two reasons: 1) Schatzki demonstrated that patients with
esophageal rings of less than 13 mm diameter invariably had dysphagia, and
2) it corresponds to the diameter of the standard adult endoscope (13 mm).
Indications for use of the barium tablet:
Method:
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