Radiology Research and Practice / 2012 / Article / Fig 1

Review Article

Assessing Cerebrovascular Reactivity in Carotid Steno-Occlusive Disease Using MRI BOLD and ASL Techniques

Figure 1

Linear correlation between BOLD signal change and ΔEtCO2 in brain regions supplied by the three main cerebral arteries (anterior: ACA, middle: MCA, and posterior: PCA), for a group of healthy subjects who underwent CO2 inhalation . Note that the highest increases in BOLD signal were observed in region areas supplies by the posterior cerebral artery (PCA: black squares), and that the lowest BOLD signal amplitudes were observed in areas supplied by the middle cerebral artery (MCA: gray squares).
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