Table 5.

Brain regions showed significant differences in RTdose images between RTtechs (IMRT vs. VMAT) in T3 patients in a two-sample t-test by using a permutation threshold-free cluster enhancement test (number of permutations = 5,000, FWE p < 0.05), voxel size: 2*2*2.

Regions	Voxels	Peak T value	MNI coordinate
			x	y	z
IMRT < VMAT
Cerebellum Posterior Lobe	4,429	−8.87	30	−86	−48
Occipital Lobe	551	−4.62	24	−94	−26
Cerebellum Anterior Lobe	83	−4.24	22	−66	−34
Medulla	53	−5.27	2	−48	−52
IMRT > VMAT
Temporal Lobe	5,059	7.67	30	18	−26
Frontal Lobe	2,941	7.66	16	12	−26
Limbic Lobe	2,012	8.01	−14	2	−24
Midbrain	1,317	7.39	4	10	−22
Occipital Lobe	1,201	3.82	0	−94	18
Pons	412	7.39	−6	−10	−24
Cerebellum Anterior Lobe	336	3.68	12	−30	−18
Sub-lobar	197	6.22	−22	−6	−24