(1) Background: CT perfusion (CTP) is a fast. robust and widely available but dose-exposing imaging technique for infarct core and penumbra detection. Carotid CT angiography (CTA) can precede CTP in the stroke protocol. Temporal information of the bolus tracking series of CTA could allow for better timing and a decreased number of scans in CTP. https://www.bigskycrypto.com/product-category/amino-acids/