Dosimetric comparison of deformable image registration and synthetic CT generation based on CBCT images for organs at risk in cervical cancer radiotherapy

Table 1 Comparison of gamma passing rates between Dose_CBCT and Dose_sCT (threshold = 10%, global 3D)

	1%/1 mm (%)	2%/2 mm (%)	2%/3 mm (%)	3%/2 mm (%)	3%/3 mm (%)
Dose_pCT vs. Dose_dpCT	95.53 ± 3.53	99.12 ± 0.87	99.51 ± 0.61	99.52 ± 0.61	99.68 ± 0.47
Dose_CBCT vs. Dose_dpCT	85.92 ± 7.56	97.92 ± 1.65	98.69 ± 1.24	99.31 ± 0.71	99.67 ± 0.52
Dose_sCT vs. Dose_dpCT	99.66 ± 0.34	99.98 ± 0.05	99.99 ± 0.02	99.99 ± 0.02	100 ± 0
P^* value	p < 0.001	p < 0.001	p < 0.001	p < 0.001	p < 0.001

*P was calculated by comparing the gamma passing rates of Dose_CBCT vs. Dose_dpCT and Dose_sCT vs. Dose_dpCT according to paired sample t tests

ISSN: 1748-717X