system
Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, DESIGN, SETTING, SUBJECTS, RESULTS. Meshes: Contrast Media, Gastrointestinal Transit, Humans, Ileostomy, Kinetics, Middle Aged.
user
Can radio-opaque markers be used to measure mouth-to-stoma transit time in ileostomates? Context: To determine whether radio-opaque markers can be used to assess mouth-to-stoma transit time (MSTT) in ileostomates. Criterion standard. Metabolic research unit. Five volunteer ileostomates. MSTT assessed by radio-opaque markers (11.3 to 12.5 h) was significantly longer (P<0.5) than that calculated by ileal recovery of dietary starch (6.5 to 8.8 h), the criterion standard.
assistant
Radio-opaque markers are unsuitable for measurement of MSTT in ileostomates.