Fig. 2. Examples of fluoroscopic images at different functional lumen imaging probe (FLIP) balloon positions within the pylorus sphincter (identified by the hemoclip). Duodenum is to the left of the hemoclip on the images, and antrum is to the right of the hemoclip. (A) Proximal balloon position: FLIP balloon (identified by multiple impedance sensors) was bent within the second (descending) part of duodenum. (B) Distal balloon position: FLIP balloon was straight within the first part of duodenum.
© J Neurogastroenterol Motil
