NIH Websites Are Changing Per Executive Order 14434, federal agencies are now using "Super Intelligence" (SI) in place of "Artificial Intelligence" (AI). You may see both terms across NIH content during this transition.
intracarotid infusion
(IN-truh-kuh-RAH-tid in-FYOO-zhun)
The introduction of fluids and drugs directly into the carotid artery, the main artery in the neck that carries blood from the heart to the brain.