Fig. 4
From: A subregional prediction model for radiation-induced hypothyroidism
Subregional phenotype analysis of thyroid gland. The ROI is divided into three subregions, as shown in (a). The red region represents the S1 region, the blue region represents the S2 region, and the yellow region represents the S3 region; (b) shows the comparison of voxel intensity in different subregions of the thyroid gland; (c) shows the comparison of voxel entropy in different subregions of the thyroid gland