Brainstem nuclei changes in migraine detected by transcranial sonography

Area of Science:

• Neurology
• Medical Imaging

Background:

• Migraine is a common neurological disorder.
• Identifying reliable structural biomarkers for migraine is crucial for diagnosis and understanding pathophysiology.
• Basal ganglia changes have been implicated in migraine, but their detection via imaging requires further investigation.

Purpose of the Study:

• To evaluate the utility of transcranial sonography (TCS) in detecting structural changes in the basal ganglia as potential biomarkers in migraine patients.
• To compare TCS findings between individuals with migraine and age-/sex-matched healthy controls.

Main Methods:

• The study involved 30 migraine patients and 30 controls.
• Transcranial sonography was performed using an Aloka prosound α-10 device.
• Semiquantitative and planimetric methods were employed to assess basal ganglia echogenicity and size.
• Statistical analysis included unpaired Student's t-tests and Spearman's correlation tests.

Main Results:

• Migraine patients showed significantly higher rates of substantia nigra hyperechogenicity (36.7% vs 13.3%) and lentiform nucleus hyperechogenicity (50% vs 13.3%) compared to controls.
• Mean echogenic sizes of the substantia nigra and lentiform nucleus were significantly larger in migraineurs.
• Increased caudate nucleus hyperechogenicity (26.7% vs 6.6%) and wider frontal horns (mean 8.73 mm vs 7.10 mm) were observed in migraine patients.
• Substantia nigra hyperechogenicity correlated negatively with disease duration and third ventricle width.

Conclusions:

• Transcranial sonography can detect significant differences in basal ganglia structure and frontal horn dimensions between migraineurs and controls.
• These TCS findings may represent potential structural biomarkers for migraine.
• Further research is warranted to determine the overall clinical significance and diagnostic value of these observed differences.