Abstract
A drinking cup was designed for high-quality double-contrast esophagography. The device comprises a holder for the barium, a feeding arrangement for the air, and a feed valve, which in part blocks the free discharge of barium from the cup. Upon continuous ingestion from the cup, an effective mixture of air and barium is formed without the use of any effervescent or other agents. The technique was evaluated in 72 patients, including children. The studies were successful in nearly all cases.
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