Technological insights: Combined impedance manometry for esophageal motility testing-current results and further implications

Figure 3 Upper panel: computer assisted determination of the points of interest according to presumed definitions as suggested by Nguyen et al[24,27,29]. Lower panel: bolus entry and bolus exit can be considered to be 50% of the basal impedance as compared to nadir impedance as suggested by Tutuian et al[32,33,34].