Daily iCBCT-based dose accumulation identifies inter-fraction BC motion volume as a selective driver of high-dose escalation to the PTV and WB while largely preserving near-minimum target coverage. Accumulated WB V45 may serve as a practical, delivery-based marker for on-treatment surveillance and risk-adapted intervention, complementing plan-based evaluation in rectal cancer radiotherapy.
Zeng et al. (Sun,) studied this question.
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