Investigation of the Effect of Calibration Curves Obtained from Different Computed Tomography Devices on the Dose Distribution of Tomotherapy Plans.

IF 0.7 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Journal of Medical Physics Pub Date : 2024-10-01 Epub Date: 2024-12-18 DOI:10.4103/jmp.jmp_129_24

Hikmettin Demir, Osman Vefa Gül, Gül Kanyilmaz

{"title":"Investigation of the Effect of Calibration Curves Obtained from Different Computed Tomography Devices on the Dose Distribution of Tomotherapy Plans.","authors":"Hikmettin Demir, Osman Vefa Gül, Gül Kanyilmaz","doi":"10.4103/jmp.jmp_129_24","DOIUrl":null,"url":null,"abstract":"Purpose: This study investigated the effect of Hounsfield units (HU)-relative electron density (RED) calibration curves obtained with devices from three different Computed Tomography (CT) manufacturers on dose distribution in Accuray Precision planning of patients with lung cancer.Methods: All CT data required for treatment planning system (TPS) were obtained using the Tomotherapy \"cheese\" phantom. HU RED calibration curves were created with images obtained from Siemens Somatom, GE Optima, and Toshiba Aquilion devices. The obtained calibration curve was extrapolated. CT images of lung cancer patients were acquired on a single device and treatment plans were created. The existing plans were recalculated using three calibration curves and the effect of the HU RED calibration curve on dose distribution was analyzed.Results: The results showed that different CTs did not produce significant dose differences in organ doses and PTV for Accuray TPS.Conclusions: Based on clinical judgment, images from different CT devices can be used in treatment planning.","PeriodicalId":51719,"journal":{"name":"Journal of Medical Physics","volume":"49 4","pages":"545-550"},"PeriodicalIF":0.7000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11801095/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Medical Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4103/jmp.jmp_129_24","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/12/18 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING","Score":null,"Total":0}

引用次数: 0

Abstract

Purpose: This study investigated the effect of Hounsfield units (HU)-relative electron density (RED) calibration curves obtained with devices from three different Computed Tomography (CT) manufacturers on dose distribution in Accuray Precision planning of patients with lung cancer.

Methods: All CT data required for treatment planning system (TPS) were obtained using the Tomotherapy "cheese" phantom. HU RED calibration curves were created with images obtained from Siemens Somatom, GE Optima, and Toshiba Aquilion devices. The obtained calibration curve was extrapolated. CT images of lung cancer patients were acquired on a single device and treatment plans were created. The existing plans were recalculated using three calibration curves and the effect of the HU RED calibration curve on dose distribution was analyzed.

Results: The results showed that different CTs did not produce significant dose differences in organ doses and PTV for Accuray TPS.

Conclusions: Based on clinical judgment, images from different CT devices can be used in treatment planning.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

不同ct设备标定曲线对断层治疗方案剂量分布影响的研究。

目的：探讨三家不同CT制造商的仪器获得的Hounsfield单位(HU)-相对电子密度（RED）校准曲线对肺癌患者Accuray Precision计划中剂量分布的影响。方法：所有治疗计划系统（TPS）所需的CT数据均使用Tomotherapy“cheese”幻影获得。使用西门子Somatom、GE Optima和东芝Aquilion设备获得的图像创建HU RED校准曲线。外推得到的校准曲线。在单个设备上获取肺癌患者的CT图像并制定治疗方案。利用三条校准曲线对现有方案进行了重新计算，并分析了HU RED校准曲线对剂量分布的影响。结果：不同ct对Accuray TPS的器官剂量和PTV没有显著的剂量差异。结论：根据临床判断，不同CT设备的图像可用于治疗方案。

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

Journal of Medical Physics RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-

CiteScore

1.10

自引率

11.10%

发文量

审稿时长

30 weeks

期刊介绍： JOURNAL OF MEDICAL PHYSICS is the official journal of Association of Medical Physicists of India (AMPI). The association has been bringing out a quarterly publication since 1976. Till the end of 1993, it was known as Medical Physics Bulletin, which then became Journal of Medical Physics. The main objective of the Journal is to serve as a vehicle of communication to highlight all aspects of the practice of medical radiation physics. The areas covered include all aspects of the application of radiation physics to biological sciences, radiotherapy, radiodiagnosis, nuclear medicine, dosimetry and radiation protection. Papers / manuscripts dealing with the aspects of physics related to cancer therapy / radiobiology also fall within the scope of the journal.