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Table 2: 
NMR characteristics of different intracranial plaque tissue componentsa
Lipid Accumulation (n = 17)Fibrous Tissue (n = 24)Fibrous Cap (n = 12)Calcifications (n = 5)Vessel Wall (n = 37)
T1 (ms)838 ± 167583 ± 161481 ± 98314 ± 39436 ± 122
PDb0.94 ± 0.101.10 ± 0.261.13 ± 0.210.15 ± 0.031.0 ± 0
T2 (ms)22 ± 6.818 ± 1015 ± 9.29.4 ± 2.810 ± 4.4
T2* (ms)18 ± 6.225 ± 1121 ± 8.48.9 ± 3.018 ± 6.5
  • Note:—NMR indicates nuclear magnetic resonance.
  • ↵a For each identified plaque component the mean ± SD of the mean ROI values for all parameters (T1, PD, T2, T2*) are given. Group differences between tissue components were tested with the Welch test; all maps showed a significant difference (P < .001) between tissue components.
  • ↵b Normalized to vessel wall.