Comparison of positioning errors and PTV expansion between the iSCOUT image-guidance system and onboard EPID in rectal cancer radiotherapy: a real-world study.

Front Oncol · 2025 · PMC12832534 · PMID 41602368

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an increasing trendno p-value reported

The overall PTV margin expansion across the four groups followed an increasing trend from BMI < 18.5 to BMI ≥ 28, with differences observed in all three directions.

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