Subacute Ischemic Stroke Is Associated With Focal ¹¹ C PiB Positron Emission Tomography Retention But Not With Global Neocortical Aβ Deposition

PiB retention was higher in the peri-infarct region among patients with recent ischemic stroke. This did not translate into a higher global neocortical PiB retention except possibly in patients with diabetes. The cause of the focal PiB retention is uncertain and requires further investigation.