Migraine associated cerebral hyperperfusion with arterial spin-labeled MR imaging
J M Pollock1, A R Deibler, J H Burdette
1Department of Radiology, Wake Forest University School of Medicine, Winston-Salem, NC, USA. jeffmpollock@gmail.com
AJNR. American Journal of Neuroradiology
|May 24, 2008
Summary
Arterial spin-labeling revealed abnormal brain blood flow in migraine patients. This hyperperfusion during headaches correlated with prior aura symptoms in some individuals.
Area of Science:
- Neurology
- Radiology
- Neuroimaging
Background:
- Migraine headaches are a common neurological disorder.
- The underlying pathophysiology of migraine, particularly during aura and headache phases, remains incompletely understood.
- Advanced neuroimaging techniques are crucial for investigating cerebral blood flow alterations in migraine.
Observation:
- This case series utilized arterial spin-labeling (ASL), a non-invasive MRI technique, to assess regional cerebral blood flow.
- Eleven patients experiencing migraine headaches were included in the study.
- ASL was performed during active migraine headache episodes.
Findings:
- Abnormal regional cerebral hyperperfusion was observed in a subset of patients during migraine episodes.
- Specifically, 3 out of 11 patients exhibited hyperperfusion.
- The areas of hyperperfusion corresponded spatially to the location of previous migraine aura symptoms in these patients.
Implications:
- These findings suggest a potential link between regional cerebral hyperperfusion and the migraine headache phase, particularly in patients with aura.
- Arterial spin-labeling may serve as a valuable tool for visualizing dynamic cerebral blood flow changes during migraine attacks.
- Further research is warranted to elucidate the precise mechanisms and clinical significance of ASL-detected hyperperfusion in migraine.
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