Nykänen Topi, Raatikainen Ville, Kärnä Aarno, Koivumäki Tuomas
Department of Medical Physics, Hospital Nova of Central Finland, Wellbeing Services County of Central Finland, Jyväskylä, Finland.
Department of Physics, University of Jyväskylä (JYU), Survontie 9 C, 40014 Jyväskylä, Finland.
Phys Imaging Radiat Oncol. 2025 Jul 10;35:100810. doi: 10.1016/j.phro.2025.100810. eCollection 2025 Jul.
In volumetric modulated arc therapy of breast cancer, an outer margin for the target is needed. This study evaluated the clinical and planning target volume coverage and surface dose using an automated skin flash method compared to the virtual bolus method. Body outline changes of 4, 8 and 12 mm were simulated in 20 breast cancer patients. Median and clinical target volume coverage and surface dose remained at 90.1 %, 98.7 % and 85.7 % or above with the automated skin flash method. The median results of automated skin flash method were close to virtual bolus method.
在乳腺癌容积调强弧形治疗中，需要为靶区设置外放边界。本研究将自动皮肤闪射法与虚拟组织等效物法进行比较，评估了临床靶区和计划靶区的覆盖情况以及表面剂量。在20例乳腺癌患者中模拟了4毫米、8毫米和12毫米的身体轮廓变化。使用自动皮肤闪射法时，临床靶区覆盖的中位数、临床靶区覆盖率和表面剂量分别保持在90.1%、98.7%和85.7%及以上。自动皮肤闪射法的中位数结果与虚拟组织等效物法相近。
