Table A1.
The mean 3D trajectory errors of tracking using different arc sizes.
| Patient No. | 1 | 2 | 3 | 4 | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Scan No. | 1 | 2 | 3 | 1 | 2 | 1 | 2 | 3 | 1 | 2 | 3 |
| Single projection | 6.3 | 11.7* | 5.4 | 4.1 | 7.0* | 20.8* | 16.0* | 13.9* | 12.2* | 9.4* | 7.2 |
| 6 degrees | 4.3 | 4.4 | 2.7 | 2.2 | 3.6 | 17.4* | 14.0* | 7.6 | 11.8* | 5.4 | 2.7 |
| 9 degrees | 4.3 | 3.3 | 3.0 | 2.2 | 3.8 | 9.9 | 2.2 | 2.8 | 5.8 | 3.5 | 2.8 |
| 30 degrees | 4.1 | 3.2 | 3.2 | 2.4 | 4.0 | 9.0 | 2.5 | 3.0 | 4.9 | 3.9 | 3.5 |
*
Tracking cases with maximum 3D trajectory errors of >15 mm and considered unsuccessful. The largest trajectory error of conventional CBCT was found to be 15 mm in this study.