Fig. 1. Steps of pneumatic dilatation. (A) Fluoroscopy picture showing gastroesophageal junction marked (arrow) and guidewire inserted. (B) RIGIFLEX balloon inserted over the guidewire. (C) Balloon inflated and waist appears in the middle of the balloon. (D) Balloon fully inflated and waist disappeared.

Int J Gastrointest Interv 2020;9:53~61 https://doi.org/10.18528/ijgii200012

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