Table 1.
Summary of available literature on gastrointestinal pH measurement with freely moving devices in healthy volunteers and / or inflammatory bowel diseases.
Table 2.
Demographics of included subjects (healthy volunteers).
Fig 1.
Flowchart.
Table 3.
Study schedule, activities are marked with an X (T0 is 8 a.m.).
Fig 2.
Mean (gastrointestinal residence and transit times determined with the IntelliCap system.
Data are presented mean and standard deviation of 13 evaluable subjects (for CTT and WGTT n = 9).
Fig 3.
Example of pH-profile of the first 10 hours after intake of the IntelliCap capsule (subject 14).
Fig 4.
Summary of pH in the stomach, small intestine and colon as measured with the IntelliCap system.
Data are presented as mean and standard deviation of 15 evaluable subjects.
Fig 5.
Colon arrival time based on pH (-) corresponds with release of 13C (♦) (subject 14).
See also Fig 4 for the first 10 hours.
Fig 6.
Difference (delta T) between lag-time (based on isotope signal) and CAT (based on pH) for each subject (n = 12).