Table 2.

Areas of significant dose-dependent cortical thinning in the right hemisphere

Cluster	Cluster size (no. of vertices)	Mean cortical thickness change (μm/Gy/year)	Mean cortical thickness change (%/Gy/year)	P-value*	Corresponding atlas regions**
1	23 424	−5	-0.18	0.009	Inferior parietal (24.3%)
					Supramarginal (20.2%)
					Superior parietal (19.8%)
					Superior temporal (9.5%)
					Pars triangularis (5.4%)
					Pars opercularis (5.4%)
					Postcentral (3.4%)
					Transverse temporal (3.4%)
					Insula (2.1%)
					Precentral (2.31%)
					Rostral middle frontal (1.8%)
					Bank of STS (2.4%)
2	4876	−6	−0.24	0.023	Posterior cingulate (43.4%)
					Paracentral (31.8%)
					Precuneus (12.5%)
					Superior frontal (12.3%)
3	209	−26	−0.72	0.046	Lateral orbital frontal (98.0%)
					Medial orbital frontal (2.0%)

*Corrected for multiple testing with family-wise error rate adjustment.

**According to Desikan–Killiany brain atlas.²⁸