Table 2:

Regional QSM and R2* values

QSM (ppm)R2* Value (1/SE)
Patients with PDControlsP ValuePatients with PDControlsP Value
Substantia nigra0.224 ± 0.014a0.199 ± 0.014.01 × 10−330.1 ± 1.5b29.0 ± 2.0.01
Red nucleus0.188 ± 0.0210.195 ± 0.019.1527.0 ± 1.727.8 ± 2.2.08
Globus pallidus0.200 ± 0.0140.205 ± 0.029.8229.7 ± 1.829.5 ± 2.1.36
Head of caudate0.166 ± 0.0130.166 ± 0.013.9725.2 ± 1.424.6 ± 1.7.19
Putamen0.168 ± 0.0130.170 ± 0.009.1726.4 ± 0.926.7 ± 1.6.44
Thalamus0.127 ± 0.0590.126 ± 0.007.5322.4 ± 1.022.8 ± 1.2.25
  • Note:—SE indicates standard error.

  • a Significantly different from controls (P < .01).

  • b Significantly different from controls (P < .05).