The present study investigated whether brain temperature measured by proton magnetic resonance (MR) spectroscopy can detect cerebral hemodynamic impairment in patients with arteriovenous malformations (AVMs) as shown by single photon emission computed tomography (SPECT). Brain temperature, cerebral blood flow, and cerebrovascular reactivity were measured using proton MR spectroscopy and SPECT in five healthy volunteers and six patients with AVMs. A significant correlation was observed between brain temperature difference (affected side - contralateral side) and cerebrovascular reactivity ratio (affected side/contralateral side) (r=0.82, p=0.0480). Brain temperature measured by proton MR spectroscopy can detect cerebral hemodynamic impairment in patients with AVMs.
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