Imaging in headache disorders

Area of Science:

• Neurology
• Radiology
• Neuroimaging

Background:

• Headache diagnosis relies on clinical evaluation and neuroimaging.
• Intracranial pressure changes and trigeminal autonomic cephalgia necessitate specific investigations.
• Identifying 'red flags' is critical in headache patient assessment.

Purpose of the Study:

• To outline the indications for Magnetic Resonance Imaging (MRI) in headache patients.
• To emphasize the role of clinical assessment in guiding further diagnostic steps.
• To report the incidence and significance of incidental findings on brain MRI.

Main Methods:

• Review of clinical guidelines and diagnostic criteria for headache disorders.
• Analysis of patient cases requiring neuroimaging for suspected intracranial pressure changes or trigeminal autonomic cephalgia.
• Assessment of the frequency and clinical relevance of incidental MRI findings.

Main Results:

• MRI is indicated for suspected intracranial pressure changes and trigeminal autonomic cephalgia.
• Clinical evaluation determines the need for further investigation of other headache disorders.
• Incidental findings on MRI are observed in approximately 2% of patients.
• Patients with migraine show a higher incidence of white matter lesions of unclear significance.

Conclusions:

• MRI is a key tool for specific neurological conditions presenting with headache.
• A thorough clinical evaluation is essential for appropriate diagnostic pathway selection.
• Incidental MRI findings, including white matter lesions in migraine patients, require careful interpretation regarding clinical significance.