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. 2014 Sep 19;7:345–358. doi: 10.2147/CEG.S52097

Figure 1.

Figure 1

Principle of the motility tracking system for evaluation of gut motility.

Notes: An elastic belt with detector is fixed to the patient’s abdomen. The magnetic capsule(s) is swallowed, and information about the position, direction, velocity, and amplitude of bowel movements can be recorded. When the capsule is expelled, data is extracted from the detector and segmental transit times can be calculated.