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March 5, 20260 citations

Dosimetric effects of internal margin, auto flash, and virtual bolus in VMAT-based whole-breast radiotherapy under motion variations.

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JJJoo JHDKD. KimWKWontaek Kim

Key Points

  • The aim is to evaluate the dosimetric effects of different techniques in VMAT-based whole-breast radiotherapy under motion variations.
  • Compared conventional INT approach with AF and VB techniques
  • Assessed robustness against motion variations
  • Evaluated target coverage and breast swelling impacts
  • AF improved dosimetric robustness against breast swelling
  • VB maintained target coverage during insufficient breath-holding
  • Conventional INT was least effective under motion variations

Abstract

In VMAT breast radiation therapy (RT), the conventional INT approach was the least robust against variations, and additional techniques are required. AF effectively compensates for breast swelling, whereas VB preserves the target coverage under insufficient breath-hold conditions. Surface-guided radiation therapy (SGRT) and visual guidance are recommended to ensure accurate treatment.

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Cite This Study

JH et al. (2026) studied this question.

synapsesocial.com/papers/69a91d7cd6127c7a504c051chttps://doi.org/10.1002/acm2.70471
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