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. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: Magn Reson Imaging. 2013 May 1;31(7):1051–1058. doi: 10.1016/j.mri.2013.03.011

Figure 1.

Figure 1

The sequence diagram for free-breathing navigator-guided PS-DIR utilizing 2D spiral imaging of the coronary vessel wall with double inversion recovery black blood preparation and phase-sensitive lumen reconstruction. Every cardiac cycle the black blood preparation is directly followed by a navigator-restore pulse to restore the inverted magnetization at the navigator site. A navigator signal is acquired before data acquisition to accept or reject data. Data acquisition starts at the subject-specific rest period trigger delay (TD) using the water-selective pulse followed by a single shot spiral interleaf.