Pearls and pitfalls: neuroimaging in headache

Area of Science:

• Neuroscience
• Medical Imaging

Background:

• Neuroimaging offers non-invasive insights into structure-function relationships in pain and headache.
• It bridges neurophysiology and clinical findings, improving understanding of migraine aura.
• Central mechanisms in idiopathic headaches are increasingly recognized.

Purpose of the Study:

• To review neuroimaging as a tool for studying primary headache syndromes.
• To highlight recent advances in functional and structural neuroimaging for headaches.
• To identify open questions and recommend future research directions.

Main Methods:

• Review of functional neuroimaging studies.
• Analysis of structural neuroimaging findings.
• Synthesis of current research on primary headache syndromes.

Main Results:

• Neuroimaging emphasizes the brainstem's role in migraine and the hypothalamus in trigemino-autonomic headaches.
• Studies suggest reduced gray matter in pain-transmitting areas in headache patients.
• Neuroimaging has advanced the understanding of headache pathophysiology.

Conclusions:

• Neuroimaging is a powerful tool for headache research.
• Further studies are needed to fully elucidate headache mechanisms.
• Recommendations for future research are provided.