Perfusion III: Arterial Spin Labeling (ASL)

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Go to first ASL Q&A

Arterial Spin Labeling Q&A's

• What is arterial spin labeling (ASL) and how does it work? 
• Can you briefly explain the difference between the various ASL methods? Which is the best?
  
• What is CASL?
  
• What is PASL and how does it differ from CASL?
  
• What is pCASL and how does it differ from CASL and PASL?
  
• How should imaging parameters be chosen to optimize an ASL acquisition?
  
• What ASL artifacts should we know about?
  
• Can gadolinium be given in conjunction with ASL?
  
• I have seen some ASL maps with vascular territories colored in. How are these produced?
  
• How are ASL methods able to quantify blood flow?
  

Arterial Spin Labeling Topics

Adiabatic pulse
Adiabatic condition
ASL artifacts
Background suppression
BOLD
CASL
Crusher gradients
DCE imaging
DSC imaging
EPISTAR
Extraction fraction
FAIR
Flow-related adiabatic inversion

General kinetic model
Labeling efficiency
Magnetization Transfer
PASL
pCASL
PICORE
PULSAR
Q2TIPS
QUASAR
QUIPSS
Region-selective ASL
STAR
VASL