AJNR. American journal of neuroradiology
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AJNR Am J Neuroradiol · Oct 2008
Arterial spin-labeling MR imaging measurements of timing parameters in patients with a carotid artery occlusion.
Arterial spin-labeling (ASL) with image acquisition at multiple delay times can be exploited in perfusion MR imaging to visualize and quantify the temporal dynamics of arterial blood inflow. In this study, we investigated the consequences of an internal carotid artery (ICA) occlusion and collateral blood flow on regional timing parameters. ⋯ Regional assessment of timing parameters with ASL may provide valuable information on the cerebral hemodynamic status. In patients with leptomeningeal collaterals, the most impaired territory was found in the frontal lobe.