Effects of Cerebral Ischemia on Evoked Cerebral Blood Oxygenation Responses and BOLD Contrast Functional MRI in Stroke Patients

Abstract

Misery perfusion caused a marked reduction of the AV on BOLD imaging, associated with an increase of deoxyhemoglobin concentration during activation. BOLD-fMRI investigations of stroke patients should be performed while giving consideration to baseline circulatory status. Functional near-infrared spectroscopy could be an alternative means to assess the CVRC.