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. Author manuscript; available in PMC: 2011 Mar 1.
Published in final edited form as: Magn Reson Med. 2010 Mar;63(3):648–657. doi: 10.1002/mrm.22280

Figure 1.

Figure 1

FAIR Look-Locker CRG-ASL pulse sequence with spiral gradient echo readout. Respiration and ECG were monitored during imaging, and cardio-respiratory triggers (ECG & Resp) were generated during the quiescent phase of expiration (respiratory window). Following the first CRG trigger, a FAIR inversion (dotted box) was applied. The inversion pulse can be either slice selective (solid line for Gz in the FAIR module) or non-selective (dotted line for Gz in the FAIR module). Spiral gradient echoes (solid box) were acquired after every CRG trigger for a period of 5 seconds following magnetization inversion.