Table 2. Brain regions showing differences in ALFF values for patients with ONFH compared to controls.

Brain regions	Hemisphere	Cluster size	Cluster centroid MNI coordinates			t value
			x	y	z
Medial superior frontal gyrus	R	267	12	57	42	4.88
Dorsolateral superior frontal gyrus	R		24	54	21	3.31
Supplementary motor area	R	244	12	12	57	3.50
Dorsolateral superior frontal gyrus	L	238	−21	45	24	4.42
Middle frontal gyrus	R	114	36	33	33	3.96