ESTRO 2024 - Abstract Book
S4817
Physics - Quality assurance and auditing
ESTRO 2024
Figure 1 An overview of free-breathing 4D proton dose calculation before treatment.
Results:
The registration algorithm generated 10 DVFs within 1s, which can reduce the 94.17% MSE between phase CT and pCT, significantly proving the accuracy of the 4D dose. The gamma passing rates (GPRs) between the plan and 4D doses were 32.90% and 93.66% with 1mm/1% and 2mm/2% criteria. The results suggested that the lung case was unsuitable for free-breathing PBS treatment. A comparison between 4D dose and RT dose was shown in Figure 2.
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