Table 5 Comparison between protocols of hospitals and margins calculated
From: A comparison of two systems of patient immobilization for prostate radiotherapy
Immobilization device | Protocol of hospitals | Margins calculated for each axis (mm) | ||
|---|---|---|---|---|
AP | CC | ML | ||
Whole body alpha-cradle | 0.5 to 1Â cm (1Â cm margin is usually used except 0.6Â cm posteriorly) | 1.8 | 2.1 | 3.4 |
Hipfix system | 1Â cm (0.5Â cm for posterior margin) | 2.3 | 8.3 | 1.9 |