Table 3 Summary of major deviations that occurred in the 26 first submitted plans
Major deviations | No. (%) |
|---|---|
Inappropriate beam arrangement | 4 (15.4) |
No application of chest wall skin flash | 5 (19.2) |
Insufficient dose coverage of PTV | 12 (46.2) |
Hot spot dose inside PTV or large volume of V110% | 5 (19.2) |
High-dose region occurred outside PTV | 3 (11.5) |
Insufficient constraint on V5Gy of OARs | 12 (46.2) |
No constraint on ipsilateral shoulder joint V30Gy | 2 (7.7) |
High spinal cord PRV Dmax | 1 (3.8) |
Insufficient dose constraint on ipsilateral lung | 1 (3.8) |