![Show Menu](styles/mobile-menu.png)
![Page Background](./../common/page-substrates/page0562.png)
ASL Arterial Spin-labelling
•
ASL is a perfusion method that uses magnetically
labeled blood as an endogenous tracer.
•
two main types of ASL technique:
–
continuous ASL
prolonged radiofrequency pulse that continuously labels
arterial blood water below the imaging slab until a steady state
of tissue magnetization is reached
–
pulsed ASL