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. Author manuscript; available in PMC: 2006 Jun 1.
Published in final edited form as: Magn Reson Med. 2005 Jun;53(6):1283–1287. doi: 10.1002/mrm.20491

Table 2.

T2 Decay Values Calculated for Four Baseline Regions in Metabolite-Nulled Spectra from Four Normal Volunteers for an 8-cm3 Voxel Placed in Parieto-occipital Mixed White–Gray Matter for both CP-PRESS and PRESS Acquisitions

T2 values (ms) from CP-PRESS
T2 values (ms) from PRESS
Baseline integration regions for T2 calculation (mean ± SD) R2 (mean ± SD) R2
Region 1 (3.80–3.65 ppm) 90.0 ± 4.6 0.97 36.6 ± 6.2 0.91
Region 2 (2.35–2.20 ppm) 73.3 ± 4.9 0.98 30.0 ± 8.5 0.84
Region 3 (1.70–1.50 ppm) 46.1 ± 6.5 0.94 46.1 ± 11.8 0.98
Region 4 (1.00–0.80 ppm) 89.2 ± 19.8 0.98 21.6 ± 8.6 0.98

Note. Mean and standard deviation decay values are shown (in ms). R2 values from the signal decay log-plot linear regression line estimates are also shown.