Video 7 - Delayed clearing time.

From the following article

Esophageal motility disorders

W.G. Paterson, Raj K. Goyal and Fortunée Irene Habib

GI Motility online (2006)


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Esophageal clearing time in normal volunteers is about 13 seconds. If barium bolus is retained more than 20 seconds, clearing time is considered delayed.

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