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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: Magn Reson Med. 2012 Apr 17;69(3):657–666. doi: 10.1002/mrm.24289

Figure 1.

Figure 1

Proposed STFR imaging principle. (a) Steady-state spin path for a single spin isochromat. (b) Proposed STFR implementation, illustrative 2D imaging example. (c) Desired transverse magnetization pattern at the time-points labeled “1”, “2”, and “3” in (a) and (b), for an axial slice. At time-point “1”, only the imaging slice is excited and hence imaged (left). Immediately after the non-slice-selective tip-up pulse (“2”), spins within the imaging slice have been realigned with the z-axis, while out-of-slice spins have been excited (middle). After the gradient spoiler S (time-point “3”), no transverse magnetization remains (right). TR-to-TR signal coherence pathways for out-of-slice spins are suppressed using RF-spoiling.