MSOT and MRI for Non-invasive Assessment of Intestinal Transit Time in Children With Chronic Bowel Emptying Disorders

Application of Multispectral Optoacoustic Tomography (MSOT) in combination with the oral contrast agent Indocyanine Green (ICG) to measure gastrointestinal transit time

Non-invasive MRI imaging technique will be employed to assess the peristalsis of intestinal segments