Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Simplified diagrams of (a) traditional PASL with Look-Locker readout, and (b) ‘acquisition of control and labeled images in the same shot’ (ACTRESS) approach. The labeled and unlabeled blood are illustrated in black and white, respectively. PASL, pulsed arterial spin labeling.
