Background: functional gastrointestinal disorders (FGID) are common conditions in\nchildren and adults, often associated with abnormalities of whole gut transit. Currently, transit tests\ncan be performed using several imaging methods, including tracking of radiopaque markers, gamma\nscintigraphy with the use of radioisotopes, magnetic tracking methods, tracking of movement of\nwireless motility capsules, and emerging magnetic resonance imaging (MRI) approaches. Objectives:\nto review recent literature on diagnostic imaging techniques used to investigate whole gut transit\nin FGIDs. Methods: a systematic review was carried out. The different techniques are described\nbriefly, with particular emphasis on contemporary literature and new developments, particularly in\nthe field of MRI. Conclusions: emerging MRI capsule marker methods are promising new tools to\nstudy whole gut transit in FGIDs.
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