Skip to main content
. 2024 Oct 25;6(6):e240073. doi: 10.1148/rycan.240073

Figure 5:

Distribution of accuracy values for each coregistration method across the study sample. Coregistration accuracy was assessed for our linearized iterative boundary reconstruction (LIBR) method, the rigid point-based registration (PBR) method, and the multiscale spectral embedding registration (MSERg) method using the Dice similarity coefficient (DSC), the modified Hausdorff distance (MHD), and the target registration error (TRE). The LIBR method produced lower TRE, DSC, and MHD than the rigid PBR method across all features evaluated (external rectal contour, internal rectal contour, and tumor bed) and also produced lower TRE, DSC, and MHD than MSERg along the internal rectal wall.

Distribution of accuracy values for each coregistration method across the study sample. Coregistration accuracy was assessed for our linearized iterative boundary reconstruction (LIBR) method, the rigid point-based registration (PBR) method, and the multiscale spectral embedding registration (MSERg) method using the Dice similarity coefficient (DSC), the modified Hausdorff distance (MHD), and the target registration error (TRE). The LIBR method produced lower TRE, DSC, and MHD than the rigid PBR method across all features evaluated (external rectal contour, internal rectal contour, and tumor bed) and also produced lower TRE, DSC, and MHD than MSERg along the internal rectal wall.