Table 6 The mean HU values of ROIs on CT, CBCT and sCT images for phantom
|  | Mean HU value of organs (mean ± SD) | ||||
|---|---|---|---|---|---|
CT | CBCT | sCT (pix2pix) | sCT (cycleGAN) | sCT (AGGAN) | |
Lung(HU) | − 755.0 | − 899.7 | − 665.2 | − 776.8 | − 763.5 |
Bone (HU) | 716.2 | 964.7 | 570.9 | 802.0 | 673.4 |
Soft tissue (HU) | − 27.5 | 10.3 | 44.1 | 24.3 | − 6.8 |