. 2025 Jul 1;11:192. doi: 10.1038/s41531-025-01043-7

Table 2.

Brain regions with differences in magnetic susceptibility values among groups

Regions	MNI coordinate			cluster size	p_FWE-corr-value	peak t value
Regions	X	Y	Z	cluster size	p_FWE-corr-value	peak t value
QSM
PD-RBD⁺> PD-RBD^-
left rectus gyrus	0	31	−25	62	0.042	5.17
PD-RBD⁺ <PD-RBD^-
right superior frontal gyrus, dorsolateral	15	18	30	224	<0.001	−4.57
PD-RBD⁺> HC
left SNpc	−10	−22	−18	108	0.001	5.83
right SNpc	11	−21	−16	140	<0.001	6.42
right precentral gyrus	52	−1	34	66	0.028	5.56
left middle cingulate cortex	−12	−24	50	95	0.002	4.68
right precentral gyrus	15	−23	66	69	0.021	4.14
PD-RBD⁺ <HC
right postcentral gyrus	13	−34	67	73	0.014	−4.72
PD-RBD^- <HC
left inferior cerebellum	−1	−55	−41	86	0.004	−4.63
χ_para
PD-RBD⁺ <PD-RBD^-
left middle temporal gyrus	−48	−33	−15	69	0.018	−4.39
PD-RBD⁺> HC
left SNpc	−10	−22	−18	120	<0.001	5.66
right SNpc	11	−21	−15	163	<0.001	6.94
PD-RBD^-> HC
left inferior temporal gyrus	−45	−27	−23	140	<0.001	4.44
left middle temporal gyrus	−53	−32	−15	61	0.041	4.08
PD-RBD^- <HC
left cerebellar lobule IX	−2	−55	−41	79	0.007	−4.79

MNI Montreal Neurological Institute, p_FWE-corr-value the p-value of familywise error correction, QSM quantitative susceptibility mapping, χ_para paramagnetic susceptibility mapping, PD-RBD⁺ Parkinson’s disease with secondary rapid eye movement sleep behavior disorder, PD-RBD^- Parkinson’s disease without rapid eye movement sleep behavior disorder, SNpc substantia nigra pars compacta.