在放射治疗规划中使用线性玻尔兹曼传输方程算法计算剂量时的皮肤结构最佳划分。

IF 1.7 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
Keisuke Hamada, Toshioh Fujibuchi, Hiroyuki Arakawa
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引用次数: 0

摘要

这项研究调查了在使用 Acuros XB 算法进行头颈部容积调制弧治疗的患者中,放置皮环结构以提高皮肤剂量计算精度的有效性。在治疗规划系统中,有关的皮环结构分别位于皮肤表面(皮肤 A)下方 2 毫米和皮肤表面(皮肤 B)上方和下方 1 毫米处。然后在丙烯酸圆柱和拟人模型上对这些结构进行了测试,并与 Gafchromic EBT3 薄膜(EBT3)进行了比较。结果显示,在圆柱形和拟人化模型中,皮肤 A 和 B 之间的最大剂量差异分别约为 12% 和 2%。在患者 1 和 2 中,皮肤 A 和 B 之间的剂量差异分别为 9.2% 和 8.2%。最终结果表明,皮肤 B 的皮肤剂量计算精度在 2% 以内,对深部器官没有影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optimum delineation of skin structure for dose calculation with the linear Boltzmann transport equation algorithm in radiotherapy treatment planning.

This study investigated the effectiveness of placing skin-ring structures to enhance the precision of skin dose calculations in patients who had undergone head and neck volumetric modulated arc therapy using the Acuros XB algorithm. The skin-ring structures in question were positioned 2 mm below the skin surface (skin A) and 1 mm above and below the skin surface (skin B) within the treatment-planning system. These structures were then tested on both acrylic cylindrical and anthropomorphic phantoms and compared with the Gafchromic EBT3 film (EBT3). The results revealed that the maximum dose differences between skins A and B for the cylindrical and anthropomorphic phantoms were approximately 12% and 2%, respectively. In patients 1 and 2, the dose differences between skins A and B were 9.2% and 8.2%, respectively. Ultimately, demonstrated that the skin-dose calculation accuracy of skin B was within 2% and did not impact the deep organs.

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来源期刊
Radiological Physics and Technology
Radiological Physics and Technology RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-
CiteScore
3.00
自引率
12.50%
发文量
40
期刊介绍: The purpose of the journal Radiological Physics and Technology is to provide a forum for sharing new knowledge related to research and development in radiological science and technology, including medical physics and radiological technology in diagnostic radiology, nuclear medicine, and radiation therapy among many other radiological disciplines, as well as to contribute to progress and improvement in medical practice and patient health care.
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