Analysis of microscopic structure and functional connectivity for headache with increasing intracranial pressure - Analysis of headache with increasing intracranial pressure

Optic nerve sheath diameter: significantly increased after Head down DTI analysis: No significant difference in FA before and after Head down AD, MD significantly increased after Head down FC: Significant decrease in FC in cerebellum-middle frontal gyrus, inferior frontal gyrus, deltoid and orbitofrontal gyrus after Head down Significantly higher FC before Head down (before headache onset) in the headache group Significantly lower FC in most of the headache group after head down (after headache onset)