TABLE 2.

The areas of significantly different CBF values between the AS patients and the HCs (voxel-level correction of FWE).

Brain regions	Brodman area	Montreal neurological institute coordinates			Peak t-value	Cluster size (voxel numbers)
		X	Y	Z
CBF values: AS > HCs
R precentral gyrus	48	58	4	8	6.37	32
L inferior frontal gyrus	47	–32	38	–18	5.69	19
L inferior frontal gyrus	48	–46	12	4	5.61	9
L temporal pole	36	–28	14	–40	5.51	13
CBF values: AS < HCs
L precuneus	23	–6	–62	18	5.81	59
R superior occipital gyrus	18	24	–94	32	5.44	8

CBF, cerebral blood flow; AS, ankylosing spondylitis; HC, healthy control; FWE, family-wise error; L (R), left (right) hemisphere.