Table 3.
The root mean square (RMS) deviations between the cumulative DVHs derived using a full dose (TPS) calculation and range-corrected dose approximation method under various simulations. The first two tables are from setup error (in the anterior-posterior direction) and weekly simulations of lung patient. For the sake of simplicity, for both prostate and HN cases, only the worst passing rate observed during weekly simulation is shown (week1 for prostate and week6 for HN)
CTV | Lung_R | Esophagus | Lung_L | Cord | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Lung Setup error (mm) |
Δ cDVH (%vol) | Δ cDVH (%vol) | Δ cDVH (%vol) | Δ cDVH (%vol) | Δ cDVH (%vol) | |||||
RMS (%) |
Max (%) |
RMS (%) |
Max (%) |
RMS (%) |
Max (%) |
RMS (%) |
Max (%) |
RMS (%) |
Max (%) |
|
−8 | 0.4 | 1.9 | 0.3 | 0.6 | 1.9 | 3.4 | 0.4 | 1.4 | 1.1 | 2.5 |
−6 | 0.3 | 1.5 | 0.3 | 0.6 | 1.5 | 2.3 | 0.5 | 1.2 | 0.9 | 2.2 |
−4 | 0.4 | 2.2 | 0.3 | 0.6 | 1.1 | 2.0 | 0.4 | 0.9 | 0.8 | 1.8 |
−2 | 0.4 | 2.1 | 0.2 | 0.7 | 0.9 | 1.6 | 0.3 | 0.6 | 0.5 | 1.3 |
0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
2 | 0.6 | 3.3 | 0.2 | 1.0 | 0.4 | 0.8 | 0.3 | 0.6 | 0.2 | 0.5 |
4 | 0.7 | 3.5 | 0.3 | 1.4 | 1.4 | 2.5 | 0.4 | 1.0 | 0.3 | 0.4 |
6 | 0.6 | 3.7 | 0.3 | 1.6 | 2.0 | 3.3 | 0.5 | 1.2 | 0.3 | 0.6 |
8 | 0.7 | 4.0 | 0.4 | 1.6 | 1.8 | 3.1 | 0.6 | 1.5 | 0.3 | 0.7 |
CTV | Lung_R | Esophagus | Lung_L | Cord | ||||||
Site (Week) | Δ cDVH (%vol) | Δ cDVH (%vol) | Δ cDVH (%vol) | Δ cDVH (%vol) | Δ cDVH (%vol) | |||||
RMS (%) |
Max (%) |
RMS (%) |
Max (%) |
RMS (%) |
Max (%) |
RMS (%) |
Max (%) |
RMS (%) |
Max (%) |
|
Lung (0) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
Lung (1) | 0.5 | 2.8 | 0.2 | 1.2 | 1.0 | 2.3 | 0.4 | 1.0 | 1.0 | 1.6 |
Lung (2) | 1.0 | 6.1 | 0.4 | 1.3 | 1.6 | 3.3 | 0.5 | 0.7 | 0.2 | 0.5 |
Lung (3) | 1.0 | 6.8 | 0.6 | 0.9 | 0.8 | 3.0 | 0.4 | 0.6 | 0.3 | 0.7 |
Lung (4) | 1.0 | 6.0 | 0.4 | 0.6 | 1.4 | 5.7 | 0.4 | 0.8 | 0.1 | 0.3 |
Lung (5) | 1.0 | 6.6 | 0.6 | 1.2 | 1.9 | 7.6 | 0.9 | 1.4 | 0.3 | 0.7 |
Lung (6) | 1.4 | 5.0 | 0.6 | 1.0 | 1.2 | 5.9 | 0.8 | 1.4 | 0.4 | 0.8 |
STV | Bladder | Rectum | Ant Rectal Wall | Femoral Heads | ||||||
Prostate (1) | 1.1 | 7.2 | 1.0 | 1.7 | 0.6 | 0.9 | 0.7 | 1.8 | 0.2 | 0.5 |
CTV1 | Brain stem | L Optic Nerve | R Optic Nerve | L Parotid | ||||||
HN (6) | 0.8 | 4.8 | 1.6 | 6.4 | 1.6 | 4.2 | 2.9 | 6.2 | 3.8 | 7.9 |