Feasibility Study of Using XRV-124 Scintillation Detector for Collinearity Measurement in Uniform Scanning Proton Therapy.

IF 2.1 Q3 ONCOLOGY International Journal of Particle Therapy Pub Date : 2022-04-22 eCollection Date: 2022-01-01 DOI:10.14338/IJPT-21-00040.1
Biniam Tesfamicael, Colton Eckert, Suresh Rana
{"title":"Feasibility Study of Using XRV-124 Scintillation Detector for Collinearity Measurement in Uniform Scanning Proton Therapy.","authors":"Biniam Tesfamicael,&nbsp;Colton Eckert,&nbsp;Suresh Rana","doi":"10.14338/IJPT-21-00040.1","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>The purpose of this work is to study the feasibility of using an XRV-124 scintillation detector in measuring the collinearity of the x-ray system and uniform scanning proton beam.</p><p><strong>Methods: </strong>A brass aperture for Snout 10 was manufactured. The center of the aperture had an opening of 1 cm in diameter (4 cm for the film measurements). The 2D kV x-ray images of the XRV-124 were acquired such that the marker inside the detector is aligned to the imaging isocenter. After obtaining the optimal camera settings, a uniform scanning proton beam was delivered for various ranges (12 g/cm<sup>2</sup> to 28 g/cm<sup>2</sup> in step size of 2 g/cm<sup>2</sup>). For each range, 10 monitor units (MU) of the first layer were delivered to the XRV-124 detector. Collinearity tests were repeated by using EDR2 and EBT3 films following our current quality assurance protocol in practice. The results from the XRV-124 measurements were compared against the collinearity results from EDR2 and EBT3 films.</p><p><strong>Results and discussion: </strong>The collinearity results were evaluated in the horizontal (x) and vertical (y) directions. The average deviation in collinearity in the x-direction was -0.24 ± 0.30 mm, 0.57 ± 0.39 mm, and -0.27 ± 0.14 mm for EDR2, EBT3, and XRV-124, respectively. In the y-direction, the average deviation was 0.39 ± 0.07 mm, 0.29 ± 0.14 mm, and 0.39 ± 0.03 mm for EDR2, EBT3, and XRV-124, respectively.</p><p><strong>Conclusion: </strong>The measurement results from the XRV-124 and films are in good agreement. Compared to film, the use of the XRV-124 detector for collinearity measurements in uniform scanning protons is more efficient and provides results in real time.</p>","PeriodicalId":36923,"journal":{"name":"International Journal of Particle Therapy","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9238126/pdf/","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Particle Therapy","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.14338/IJPT-21-00040.1","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"ONCOLOGY","Score":null,"Total":0}
引用次数: 1

Abstract

Purpose: The purpose of this work is to study the feasibility of using an XRV-124 scintillation detector in measuring the collinearity of the x-ray system and uniform scanning proton beam.

Methods: A brass aperture for Snout 10 was manufactured. The center of the aperture had an opening of 1 cm in diameter (4 cm for the film measurements). The 2D kV x-ray images of the XRV-124 were acquired such that the marker inside the detector is aligned to the imaging isocenter. After obtaining the optimal camera settings, a uniform scanning proton beam was delivered for various ranges (12 g/cm2 to 28 g/cm2 in step size of 2 g/cm2). For each range, 10 monitor units (MU) of the first layer were delivered to the XRV-124 detector. Collinearity tests were repeated by using EDR2 and EBT3 films following our current quality assurance protocol in practice. The results from the XRV-124 measurements were compared against the collinearity results from EDR2 and EBT3 films.

Results and discussion: The collinearity results were evaluated in the horizontal (x) and vertical (y) directions. The average deviation in collinearity in the x-direction was -0.24 ± 0.30 mm, 0.57 ± 0.39 mm, and -0.27 ± 0.14 mm for EDR2, EBT3, and XRV-124, respectively. In the y-direction, the average deviation was 0.39 ± 0.07 mm, 0.29 ± 0.14 mm, and 0.39 ± 0.03 mm for EDR2, EBT3, and XRV-124, respectively.

Conclusion: The measurement results from the XRV-124 and films are in good agreement. Compared to film, the use of the XRV-124 detector for collinearity measurements in uniform scanning protons is more efficient and provides results in real time.

Abstract Image

Abstract Image

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
XRV-124闪烁探测器用于均匀扫描质子治疗共线性测量的可行性研究。
目的:研究用XRV-124闪烁探测器测量x射线系统和均匀扫描质子束共线性的可行性。方法:制作10号口鼻的黄铜孔。光圈中心的开口直径为1厘米(薄膜测量为4厘米)。获得了XRV-124的二维kV x射线图像,使得探测器内部的标记与成像等中心对齐。在获得最佳相机设置后,在不同范围内(12 g/cm2至28 g/cm2,步长为2 g/cm2)均匀扫描质子束。对于每个量程,将第一层的10个监视器(MU)交付给XRV-124探测器。使用EDR2和EBT3薄膜,按照我们目前的质量保证方案重复共线性测试。XRV-124的测量结果与EDR2和EBT3薄膜的共线性结果进行了比较。结果与讨论:在水平(x)和垂直(y)方向上评价共线性结果。EDR2、EBT3和XRV-124的x方向共线性平均偏差分别为-0.24±0.30 mm、0.57±0.39 mm和-0.27±0.14 mm。在y方向上,EDR2、EBT3和XRV-124的平均偏差分别为0.39±0.07 mm、0.29±0.14 mm和0.39±0.03 mm。结论:XRV-124的测量结果与薄膜的测量结果吻合较好。与胶片相比,使用XRV-124探测器在均匀扫描质子中进行共线性测量更有效,并提供实时结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
International Journal of Particle Therapy
International Journal of Particle Therapy Medicine-Radiology, Nuclear Medicine and Imaging
CiteScore
3.70
自引率
5.90%
发文量
23
审稿时长
20 weeks
期刊最新文献
Vaginal Mucosal Melanoma Cell Activation in Response to Photon or Carbon Ion Irradiation. Navigating a New Frontier: Evaluating Leadless Pacemakers in Proton Therapy. Cardiac Conduction System as an OAR in Radiation Therapy: Doses to SA/AV Nodes and Their Reduction. Value of Carbon-Ion Radiation Therapy for Breast Cancer. Reducing Radiation Dermatitis for PBS Proton Therapy Breast Cancer Patients Using SpotDelete.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1