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带有射频识别端口的组织扩张器在乳腺癌根治术后放疗计划中的建模。

Modeling of a tissue expander with a radiofrequency identification port in postmastectomy radiation therapy planning.

机构信息

Radiation Oncology Department, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo 135-8550, Japan.

出版信息

J Radiat Res. 2024 May 23;65(3):360-368. doi: 10.1093/jrr/rrae004.

DOI:10.1093/jrr/rrae004
PMID:38461548
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11115439/
Abstract

The purpose of this study was to evaluate the dose attenuation of Motiva Flora® (Flora, Establishment Labs, Alajuela, Costa Rica) tissue expander with a radiofrequency identification port locator and to develop a model for accurate postmastectomy radiation therapy planning. Dose attenuation was measured using an EBT3 film (Ashland, Bridgewater, NJ), and the optimal material and density assignment for the radiofrequency identification coil for dose calculation were investigated using the AcurosXB algorithm on the Eclipse (Varian Medical Systems, Palo Alto, CA) treatment planning system. Additionally, we performed in vivo dosimetry analysis using irradiation tangential to the Flora tissue expander to validate the modeling accuracy. Dose attenuations downstream of the Flora radiofrequency identification coil was 1.29% for a 6 MV X-ray and 0.99% for a 10 MV X-ray when the coil was placed perpendicular to the beam. The most suitable assignments for the material and density of the radiofrequency identification coil were aluminum and 2.27 g/cm3, respectively, even though the coil was actually made of copper. Gamma analysis of in vivo dosimetry with criteria of 3% and 2 mm did not fail in the coil region. Therefore, we conclude that the model is reasonable for clinical use.

摘要

本研究旨在评估带有射频识别端口定位器的 Motiva Flora®（Flora，Establishment Labs，Alajuela，Costa Rica）组织扩张器的剂量衰减，并为乳腺癌根治术后放射治疗计划制定精确模型。使用 EBT3 胶片（Ashland，Bridgewater，NJ）测量剂量衰减，使用 Eclipse（Varian Medical Systems，Palo Alto，CA）治疗计划系统中的 AcurosXB 算法研究了射频识别线圈的最佳材料和密度赋值，用于剂量计算。此外，我们还进行了与 Flora 组织扩张器相切的体内剂量分析，以验证建模准确性。当线圈垂直于射束放置时，6 MV X 射线的剂量衰减为 1.29%，10 MV X 射线的剂量衰减为 0.99%。尽管线圈实际上是由铜制成的，但射频识别线圈的最合适材料和密度赋值分别为铝和 2.27 g/cm3。线圈区域的 3%和 2 mm 标准的体内剂量伽马分析未失败。因此，我们得出结论，该模型可用于临床。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/0dd478e0d898/rrae004f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/4ef1148db1be/rrae004f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/80860789307e/rrae004f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/a6247ec2ebd3/rrae004f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/1d4c2f36b8c7/rrae004f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/daa9ac3a56f0/rrae004f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/22ae93d7d6ca/rrae004f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/b052454934ce/rrae004f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/9f25dde53783/rrae004f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/7b877c80faca/rrae004f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/0dd478e0d898/rrae004f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/4ef1148db1be/rrae004f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/80860789307e/rrae004f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/a6247ec2ebd3/rrae004f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/1d4c2f36b8c7/rrae004f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/daa9ac3a56f0/rrae004f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/22ae93d7d6ca/rrae004f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/b052454934ce/rrae004f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/9f25dde53783/rrae004f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/7b877c80faca/rrae004f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d2d9/11115439/0dd478e0d898/rrae004f10.jpg

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