Brain imaging approaches to the study of functional GI disorders: a Rome working team report

Area of Science:

• Neuroscience
• Gastroenterology
• Medical Imaging

Background:

• Understanding brain-gut interactions is limited by the lack of non-invasive brain study techniques.
• Neuroimaging advances allow for studying brain structure, function, and signaling systems.

Purpose of the Study:

• To provide an overview of functional neuroanatomy and common brain imaging techniques.
• To summarize functional brain imaging studies on visceral stimulation in healthy subjects and functional GI disorder patients.
• To critically assess existing studies and recommend improvements for future research.

Main Methods:

• Review of functional neuroanatomy and neuroimaging techniques.
• Synthesis of published functional brain imaging studies involving acute visceral stimulation (esophagus, stomach, colon).
• Analysis of studies in healthy controls and patients with functional gastrointestinal disorders.

Main Results:

• Neuroimaging has enabled the study of brain activity related to visceral stimulation.
• Studies reveal insights into brain-gut signaling in both healthy individuals and those with functional GI disorders.
• Published findings highlight the role of specific brain regions in processing visceral input.

Conclusions:

• Non-invasive neuroimaging is vital for advancing brain-gut interaction research.
• Current studies provide a foundation, but methodological improvements are needed.
• Future research should focus on refined study designs and analysis strategies for better understanding of brain-gut axis in health and disease.