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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Magn Reson Med. 2013 Nov 14;72(4):1049–1056. doi: 10.1002/mrm.25024

FIG. 1.

FIG. 1

Illustration of integration of PCASL and PROMO in one TR (a) and the overall scan (b). The navigator is incorporated into ASL preparation without increasing TR. When motion occurs in TRN, the image acquisitions IMGN, IMGN+1, IMGN+2, and so on, will be misregistered without PROMO. Using PROMO, the motion is detected by NAVN+1 and all the subsequent imaging (IMGN+1, IMGN+2, and so on) is corrected by applying motion parameters ψ for pulse sequence update, although IMGN remains corrupted. If desired, the motion corrupted imaging IMGN can be rescanned at the end of the scan depending on the change of ψ.