From: Impact of the frequency of online verifications on the patient set-up accuracy and set-up margins
 |  | Direction | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
 |  | AP | Lateral | SI | ||||||
Anatomical region | FOV | M | Σ | σ | M | Σ | σ | M | Σ | σ |
Head and Neck | 0% | 0.3 | 0.9 | 1.6 | -0.3 | 1.3 | 1.6 | 0.6 | 1.5 | 2.2 |
Chest | 0% | 0.7 | 2.4 | 2.7 | -0.3 | 2.2 | 2.7 | 0.5 | 1.7 | 2.4 |
Abdomen | 0% | 0.6 | 3.0 | 3.3 | -0.9 | 2.4 | 3.0 | -0.8 | 3.6 | 3.1 |
Pelvis | 0% | 0.9 | 2.3 | 3.2 | -0.3 | 1.8 | 2.7 | 1.0 | 3.2 | 2.5 |
Head and Neck | 20% | 0.2 | 0.8 | 1.4 | -0.3 | 1.1 | 1.4 | 0.4 | 1.1 | 1.9 |
Chest | 20% | 0.5 | 1.7 | 2.2 | -0.3 | 1.7 | 2.4 | 0.3 | 1.4 | 2.1 |
Abdomen | 20% | 0.6 | 2.3 | 3.1 | -0.5 | 1.6 | 2.7 | -0.4 | 2.6 | 3.0 |
Pelvis | 20% | 0.6 | 1.7 | 2.9 | -0.4 | 1.5 | 2.4 | 0.9 | 2.6 | 2.3 |
Head and Neck | 50% | 0.1 | 0.5 | 1.1 | -0.1 | 0.6 | 1.2 | 0.2 | 0.6 | 1.3 |
Chest | 50% | 0.3 | 0.9 | 1.6 | -0.2 | 1.1 | 2.0 | 0.2 | 0.8 | 1.6 |
Abdomen | 50% | 0.4 | 1.5 | 2.5 | -0.2 | 1.1 | 2.5 | -0.4 | 1.7 | 2.8 |
Pelvis | 50% | 0.5 | 1.3 | 2.4 | -0.2 | 1.1 | 1.9 | 0.6 | 1.4 | 2.0 |