Functional brain imaging in gastroenterology: to new beginnings

Area of Science:

• Neurogastroenterology
• Functional Brain Imaging
• Gastrointestinal Physiology

Background:

• Functional brain imaging in gastroenterology has grown significantly, providing insights into supraspinal responses to gastrointestinal stimulation.
• Over 100 studies in two decades reveal brain-gut interactions in health and disease.
• Significant inter-study variability exists due to methodological differences and patient selection.

Purpose of the Study:

• To review the utility and findings of functional brain imaging in gastroenterology.
• To identify areas needing improvement in current methodologies.
• To suggest future research directions for enhanced reproducibility and clinical relevance.

Main Methods:

• Review of existing literature on functional brain imaging in gastroenterology.
• Analysis of methodological variations impacting study reproducibility.
• Exploration of novel imaging modalities and analytical approaches.

Main Results:

• Functional brain imaging has elucidated supraspinal mechanisms in gastrointestinal function and dysfunction.
• Methodological inconsistencies (stimulation, recording, patient selection, psychological factors) hinder reproducibility.
• Standardization and adoption of advanced imaging techniques are needed.

Conclusions:

• Functional brain imaging is valuable but requires optimization and standardization for clinical utility.
• Novel imaging modalities and analyses may improve understanding of functional gastrointestinal disorders.
• Future research should focus on reproducible and standardized brain imaging protocols.