Brain pH in Migraine: An In Vivo Phosphorus-31 Magnetic Resonance Spectroscopy Study

Abstract
The intracellular pH (pHi) of cerebral cortex was measured in migraine patients by use of in vivo phosphorus-31 NMR spectroscopy. No changes in pHi were measured during a migraine attack. The long-standing concept that the headache of migraine is due to cerebral vaso-dilatation induced by prodromal vasospasm-induced ischemic acidosis is not substantiated.