. Author manuscript; available in PMC: 2018 Apr 1.

Published in final edited form as: NMR Biomed. 2016 May 18;30(4):10.1002/nbm.3554. doi: 10.1002/nbm.3554

Table 2.

Regional QSM values, R₂^* values, and volume of DN for patients with Parkinson’s disease (PD) and healthy controls(HCs)

		TD n=19	HCs n=48	P	AR n=24	HCs n=48	P
QSM	ipsilateral	0.074±0.018	0.063±0.016	0.016	0.059±0.013	0.063±0.016	0.347
QSM	contralateral	0.074±0.018	0.063±0.016	0.015	0.060±0.015	0.063±0.016	0.529
R₂^*	ipsilateral	32.0±5.5	29.1±5.0	0.055	27.7±5.8	29.1±5.0	0.299
R₂^*	contralateral	32.7±8.4	29.1±5.0	0.099	29.7±5.1	29.1±5.0	0.631
Volume	ipsilateral	756.5±210.3	848.1±228.0	0.135	795.8±205.2	848.1±228.0	0.347
Volume	contralateral	779.1±192.9	848.1±228.0	0.249	779.6±205.9	848.1±228.0	0.219

Data are presented as mean ±(SD); Bold, p<0.025, significantly different from controls after the Bonferroni correction; TD, tremor dominant Parkinson’s disease; AR, akinetic rigidity dominant Parkinson’s disease; HCs, healthy controls. Unit of QSM: ppm. Unit of R₂^* : s⁻¹. Unit of volume: pixels.