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. Author manuscript; available in PMC: 2011 Aug 1.
Published in final edited form as: Magn Reson Med. 2010 Aug;64(2):554–566. doi: 10.1002/mrm.22365

Fig. 8.

Fig. 8

(Top row): Reconstructed ODFs from 7T human brain data shown on the FA map, using: (left) CSA QBI, (middle) original QBI after normalization, and (right) original QBI with LBS. (Middle row): Results of DOT for different radii, ascending from left to right. (Bottom row): ODFs reconstructed using regularization parameters of (left) 0.001, (middle) 0.01, and (right) without regularization using the L1 error norm. A singly refocused 2D single shot spin echo EPI sequence was used. Image parameters were: FOV: 192×192 mm2 (matrix: 196×96) to yield a spatial resolution of 2×2×2 mm3, TR/TE 4800/57 msec., acceleration factor (GRAPPA) of 2 and 6/8 partial Fourier were used along the phase encode direction. Diffusion-weighted images were acquired at three b-values of 1000, 2000 and 3000 s/mm2 with 256 directions, along with 31 baseline images. EPI echo spacing was 0.57 msec. with a bandwidth of 2895 Hz/Px.