Journal of Neurogastroenterology and Motility : eISSN 2093-0887 / pISSN 2093-0879

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Fig. 2. Positioning of 8-channel pH sensor catheter. (A) Fluoroscopic image and (B) schematic illustration showing 8-channel pH sensor catheter after insertion. The catheter was inserted transnasally into the esophagus and the position confirmed with fluoroscopic imaging so that the sensor straddled the gastric fluid surface. In the present study, catheter positioning was thoroughly checked before and after ingesting meals using X-ray imaging.
J Neurogastroenterol Motil 2021;27:370~376
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