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. Author manuscript; available in PMC: 2009 Mar 3.
Published in final edited form as: Magn Reson Med. 2008 Mar;59(3):547–560. doi: 10.1002/mrm.21485

FIG. 9.

FIG. 9

Spin-echo images from the experiment in Fig. 8. a: Image using nonoptimized pulses (STA 90° + LCLTA 180°). There were some significant artifacts as marked by the arrows. These artifacts are primarily due to the nonlinearity of Bloch equation and limited k-space coverage. b: Image using optimized pulses (optimized 90° + optimized180°). This image has a very clean “background” outside of the prescribed region.