Source: wikibot/arterial-spin-labelling
= Arterial spin labelling
{wiki=Arterial_spin_labelling}
Arterial Spin Labeling (ASL) is a non-invasive magnetic resonance imaging (MRI) technique used to measure cerebral blood flow (CBF) in the brain. Unlike traditional methods that require contrast agents, ASL uses the magnetic properties of arterial blood water as a tracer. Here’s a brief overview of how it works and its applications: \#\#\# How ASL Works 1.