Table 2 CTV-PTV margins
From: Optimizing image guidance frequency and implications on margins for gynecologic malignancies
CTV-PTV margin | ||||
|---|---|---|---|---|
(2.5 × Rres (systematic deviation) + 0.7 × rres (random deviation due to organ motion & set-up error) | ||||
v (mm) | lo (mm) | la (mm) | r (°) | |
Uncorrected | 14.9 | 10.2 | 11.6 | 1.9 |
FFF | 8.4 | 8.8 | 13.4 | 1.7 |
FTF | 7.0 | 6.6 | 11.5 | 1.7 |
505 | 5.5 | 6.0 | 9.2 | 1.4 |