Table 3 The mean HU values of ROIs on CT, CBCT and sCT images for patients
|  | Mean HU value of ROIs (mean ± SD) | ||||
|---|---|---|---|---|---|
CT | CBCT | sCT (pix2pix) | sCT (cycleGAN) | sCT (AGGAN) | |
Lung (HU) | − 722.6 ± 46.1 | − 853.9 ± 85.2 | − 708.2 ± 49.4 | − 704.8 ± 40.8 | − 710.3 ± 42.7 |
Bone (HU) | 217.4 ± 23.8 | 67.1 ± 42.7 | 223.0 ± 27.5 | 208.7 ± 25.1 | 211.7 ± 27.2 |
Soft tissue (HU) | 13.7 ± 16.2 | − 116.7 ± 75.0 | 14.2 ± 15.1 | 9.6 ± 14.7 | 12.4 ± 15.7 |