Fig. 7From: Volume, distribution and acidity of gastric secretion on and off proton pump inhibitor treatment: a randomized double-blind controlled study in patients with gastro-esophageal reflux disease (GERD) and healthy subjectsLayer graphs including EGJ position and time to Layer formation. Layer graphs of a healthy subject (left) and a GERD patient (right) under placebo (top) and PPI therapy (bottom). The vertical axis represents the MR image x-axis, which is aligned along the direction of gravity. The colours code the average %secretion. The threshold level of the layer (i.e. ≥70 % secretion) and the position of the EGJ are indicated as white dashed and black dotted line, respectivelyBack to article page