Patterns of quality assurance and treatment planning for stereotactic body radiation therapy in India - A survey.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-04-06 DOI:10.4103/jcrt.jcrt_1090_23

Smriti Sharma, RituRaj Upreti, RA Kinhikar, G. Sahani, P. Dash Sharma

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引用次数: 0

Abstract

AIM The use of stereotactic body radiation therapy (SBRT) is an increasing trend in the country. The aim of this study is to gain knowledge on patterns of quality assurance (QA) and treatment planning (TP) aspects with respect to SBRT. MATERIALS AND METHODS A questionnaire with multiple choice was designed to determine practices of SBRT covering areas such as years of experience, type of linear accelerator, tumor-motion strategies, calculation algorithm used in the TP system (TPS), the protocol used for small field dosimetry, the detector used for small field dosimetry and QA, respiratory management during delivery. The survey was sent to all radiotherapy institutes in the country having a minimum of one linear accelerator, and responses were analyzed. RESULTS From June 2022 to December 2022, 265 responses to the SBRT survey were received with response rate as 60.4%. The most common reason for not adopting SBRT was reported as a lack of capability of treatment machines to deliver SBRT (61.6%). Lung (81.1%) was the most practiced site. The most common delivery unit was a conventional linear accelerator (83%); 6 MV FFF (85.7%) was mostly used energy; volumetric-modulated arc radiotherapy (VMAT) (91.5%) was mostly used delivery technique; most of the equipment (more than 91.5%) used multileaf collimator (MLC) leaf width ≤5 mm. The most popular methods used for motion strategies during computed tomography (CT) were motion-encompassing and breath-hold techniques used by 65 (62.5%) and 62 (59.6%) respondents, respectively. The most popular method used for respiratory management during delivery was breath-hold by 55 (52.4%) respondents. Most TPS are equipped with either Type-C or Type-B algorithms. Heterogeneity was observed in the QA protocol and acceptance criteria for analysis of patient-specific QA. CONCLUSION The survey resulted in heterogeneity in QA and TP aspects among users of SBRT and demands for harmonizing the dosimetric aspects of SBRT in the country.

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印度立体定向体放射治疗的质量保证和治疗计划模式--一项调查。

目的立体定向体放射治疗（SBRT）的使用在国内呈上升趋势。本研究旨在了解有关 SBRT 的质量保证（QA）和治疗计划（TP）方面的模式。材料和方法设计了一份多选题调查问卷，以确定 SBRT 的实践情况，涉及的领域包括经验年限、直线加速器类型、肿瘤运动策略、TP 系统（TPS）中使用的计算算法、小野剂量测定使用的协议、小野剂量测定和 QA 使用的探测器、放疗过程中的呼吸管理。调查对象为全国所有至少拥有一台直线加速器的放疗机构，并对回复进行了分析。结果从 2022 年 6 月到 2022 年 12 月，SBRT 调查共收到 265 份回复，回复率为 60.4%。未采用 SBRT 的最常见原因是治疗机缺乏实施 SBRT 的能力（61.6%）。肺部（81.1%）是最常用的部位。最常用的传输装置是传统直线加速器（83%）；最常用的能量是 6 MV FFF（85.7%）；最常用的传输技术是容积调制弧线放疗（VMAT）（91.5%）；大多数设备（超过 91.5%）使用的多叶准直器（MLC）叶宽≤5 mm。在计算机断层扫描（CT）过程中，最常用的运动策略是运动包围和屏气技术，分别有 65 名（62.5%）和 62 名（59.6%）受访者使用。55 名（52.4%）受访者在分娩过程中最常用的呼吸管理方法是屏气。大多数 TPS 都配备了 C 型或 B 型算法。调查结果显示，SBRT 用户在 QA 和 TP 方面存在差异，因此需要协调国内 SBRT 的剂量学方面。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.