Table 3 3D gamma analysis of the CBCT, CBCT_cor, SCT1 and SCT2 compared with RCT (mean ± SD).

From: CBCT-based synthetic CT generated using CycleGAN with HU correction for adaptive radiotherapy of nasopharyngeal carcinoma

 

Gamma criteria (%) 3 mm/3%

P value

gamma criteria (%) 2 mm/2%

P value

CBCT

83.7 ± 3.5

0.003

62.2 ± 3.9

0.003

CBCT_cor

96.3 ± 0.8

0.003

91.1 ± 2.4

0.003

SCT1

97.7 ± 0.7

0.004

95.7 ± 1.9

0.021

SCT2

98.7 ± 0.3

–

97.1 ± 0.5

–

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