Figure 1: (a) Static image acquired with cricoid marker (arrow-head) for localizing the upper end of esophagus; radiolabelled milk visualized in stomach (arrow), (b) gastric region of interest over the first frame of dynamic study for initial counts, as a part of measurement of gastric emptying time, (c) region of interest over the entire esophageal region, and then division into three parts for grading level of reflux