Table 3.
Dose distributions to the target with simulation of 0 mm, 1 mm and 2 mm safety margins 1) in the treatment plan (plan), 2) in the scenario of radiosurgery without image-guidance (No IG), 3) in the scenario of radiosurgery after image-guided correction of translational errors only and not rotations (IG trans) and 4) simulating errors observed immediately following image-guided radiosurgery (Post IG-RS)
| Safety margin | Plan | No IG | IG trans | Post IG-SRS | |||||
|---|---|---|---|---|---|---|---|---|---|
|
0 mm |
Absolute CI |
0.96 |
±0.06 |
0.72 |
±0.19 |
0.96 |
±0.06 |
0.94 |
±0.07 |
| |
<95% planned CI |
|
91% |
3% |
14% |
||||
|
1 mm |
Absolute CI |
1.00 |
±0.01 |
0.82 |
±0.19 |
1.00 |
±0.01 |
0.99 |
±0.01 |
| |
<95% planned CI |
|
70% |
0% |
0% |
||||
|
2 mm |
Absolute CI |
1.00 |
±0.04 |
0.90 |
±0.17 |
1.00 |
±0.04 |
1.00 |
±0 |
| <95% planned CI | 40% | 0% | 0% | ||||||
Absolute values of the coverage index (average ± standard deviation) and percent of the patients with <95% planned target coverage are summarized.