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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):903–912. doi: 10.1002/mrm.25007

Fig. 5.

Fig. 5

Stack plots of spectra from the right frontal lobe of seven healthy volunteers acquired with TR = 2.5 s, TE1 = 26 ms, TE2 = 72 ms, voxel size = 2×2×2 cm3, spectral width = 4000 Hz, number of data points = 2048, and number of averages = 128. The metabolite peaks over 3.7 ppm were partially suppressed by the water suppression pulses that had a bandwidth of ~350 Hz. a: Spectra that had no lineshape correction. Gaussian line broadening of 3 Hz was used. b: Spectra that were lineshape corrected using the new Wiener filtering method. Gaussian line broadening of 5 – 7 Hz was used. The NAA peaks are truncated except the two on the top row.