Accuray finds individualized dose margins reduce OAR risk in nasopharyngeal carcinoma

Accuray finds individualized dose margins reduce OAR risk in nasopharyngeal carcinoma
Accuray: Dose margins in cancer

Accuray presents new findings suggesting that uniform PTV margins may not always ensure adequate coverage in nasopharyngeal carcinoma treatment.

The research shows that daily MVCT with deformable dose accumulation reveals a potential for higher OAR (organs at risk) dose when standard margins are used. By utilizing individualized, dose-driven margins—often between 1 and 2 mm—control is preserved while reducing risk to critical structures. These insights could inform future protocols for more precise and patient-specific radiotherapy in head and neck cancer care.

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