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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: Gastroenterology. 2015 Aug 14;149(7):1742–1751. doi: 10.1053/j.gastro.2015.08.005

Figure 2. Non-occlusive contractions detected with FLIP.

Figure 2

Patients were considered to have occlusive contractions if any observed contraction on FLIP topography achieved a luminal diameter ≤ 6 mm and non-occlusive if the minimal diameter reached was > 6mm. Frequencies varied between normal controls and achalasia (p = 0.005) and among achalasia subtypes (p = 0.004: type I vs type II, p = 0.057; type I vs type III, p = 0.001; type II vs type III, p = 0.022).