Health Clinical Trial
Official title:
A Pilot Study to Assess the Procedural Feasibility to Combine and Compare Dynamic Magnetic Resonance Imaging and an Isovolumetric Intragastric Balloon to Assess Gastric Contractility in Healthy Adults
Previous research by TARGID (KU Leuven) has demonstrated the feasibility to assess gastric content volume by means of magnetic resonance imaging (MRI) while simultaneously evaluating gastric motor function by means of an isovolumetric balloon technique. This and other research concluded that in general, the motility readout of the isovolumetric balloon is associated with gastric contractions. However, the exact relation between individual gastric contractions and individual intraballoon pressure waves remains incompletely understood. Simultaneous assessment of gastric motility by means of an isovolumetric balloon and dynamic cine-MRI can validate that slow, high-amplitude intraballoon pressure waves are indeed induced by gastric muscle contractions. This evaluation might also enable us to attribute artefacts present in the pressure signal to physiologic processes such as cardiac, respiratory, intestinal and whole-body movements. To date substantial uncertainty exists on the optimal procedural approach to evaluate gastric motility simultaneously with cine-MRI and the isovolumetric balloon. The aim of this pilot study is to verify the feasibility of a several aspects of a larger confirmatory study protocol. This includes the evaluation of contrast of the balloon catheter on MRI (this would omit the need for radiographic confirmation), timelines, practical hurdles, analysis procedures and data management.
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