首页 > 最新文献

Technical Innovations and Patient Support in Radiation Oncology最新文献

英文 中文
Radiography students wishing to work in the field of radiation therapy: A French experience 希望在放射治疗领域工作的放射学学生:法国经验
Q1 Nursing Pub Date : 2025-04-29 DOI: 10.1016/j.tipsro.2025.100313
S. Boisbouvier , F. Hermant , A. Béasse
Radiation therapy (RT) is one of the main treatment modalities for cancer. In France, radiation therapists (RTTs) undergo a combined training program in radiography, nuclear medicine, and RT. In the context of rising cancer cases and greater utilisation of RT, RT departments face a workforce shortage. This study investigates the interest of final-year radiography students in working in RT and explores deterrents to their career choice.
A survey was conducted in January 2024 among French radiography students who had completed at least 3 weeks of RT clinical placement. The survey included closed and open-ended questions on career preferences and highlighted barriers to working in RT. Data analysis included absolute number, frequency of students wishing to work in RT according to the age range of the students. A Chi square test was used to assess the influence of the age range on the desire to work in RT field. A thematic analysis of free-text responses was also performed.
The results indicated a low interest in a career in RT among students, with the main reasons being psychological and educational barriers. Enhancing RT-specific education, improving clinical placements, addressing emotional resilience, and modernising training programmes are crucial to attract future RTTs and address workforce shortages in this critical field.
放射治疗(RT)是癌症的主要治疗方式之一。在法国,放射治疗师(rtt)接受放射照相、核医学和放射治疗的综合培训。在癌症病例上升和放射治疗利用率提高的背景下,放射治疗部门面临劳动力短缺。本研究调查了最后一年放射学学生在RT工作的兴趣,并探讨了阻碍他们职业选择的因素。2024年1月,在完成了至少3周的放射学临床安置的法国放射学学生中进行了一项调查。该调查包括关于职业偏好的封闭式和开放式问题,并突出了在RT工作的障碍。数据分析包括根据学生年龄范围希望在RT工作的学生的绝对数量和频率。采用卡方检验评估年龄范围对RT领域工作意愿的影响。还对自由文本答复进行了专题分析。结果显示,学生对RT职业的兴趣较低,主要原因是心理和教育障碍。加强针对rt的教育、改善临床实习、解决情绪弹性问题和现代化培训计划对于吸引未来的rt和解决这一关键领域的劳动力短缺至关重要。
{"title":"Radiography students wishing to work in the field of radiation therapy: A French experience","authors":"S. Boisbouvier ,&nbsp;F. Hermant ,&nbsp;A. Béasse","doi":"10.1016/j.tipsro.2025.100313","DOIUrl":"10.1016/j.tipsro.2025.100313","url":null,"abstract":"<div><div>Radiation therapy (RT) is one of the main treatment modalities for cancer. In France, radiation therapists (RTTs) undergo a combined training program in radiography, nuclear medicine, and RT. In the context of rising cancer cases and greater utilisation of RT, RT departments face a workforce shortage. This study investigates the interest of final-year radiography students in working in RT and explores deterrents to their career choice.</div><div>A survey was conducted in January 2024 among French radiography students who had completed at least 3 weeks of RT clinical placement. The survey included closed and open-ended questions on career preferences and highlighted barriers to working in RT. Data analysis included absolute number, frequency of students wishing to work in RT according to the age range of the students. A Chi square test was used to assess the influence of the age range on the desire to work in RT field. A thematic analysis of free-text responses was also performed.</div><div>The results indicated a low interest in a career in RT among students, with the main reasons being psychological and educational barriers. Enhancing RT-specific education, improving clinical placements, addressing emotional resilience, and modernising training programmes are crucial to attract future RTTs and address workforce shortages in this critical field.</div></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":"34 ","pages":"Article 100313"},"PeriodicalIF":0.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tattoo-less chest wall and regional nodal irradiation using surface imaging 胸壁无刺青及局部淋巴结表面显像照射
Q1 Nursing Pub Date : 2025-04-23 DOI: 10.1016/j.tipsro.2025.100310
Boris Mueller , Yulin Song , Xingchen Zhai , Yubei Liang , Paul Tamas , Simon Powell , David M Guttmann , Diana Roth O’Brien , Beryl McCormick , Atif Khan , Laura Cervino-Arriba , Bo Zhao , Linda Hong , Lior Z. Braunstein
<div><h3>Purpose/Objective</h3><div>Skin tattoos represent the standard for surface alignment and setup of breast cancer radiotherapy yet contribute to adverse cosmesis and patient dissatisfaction. With the advent of contemporary surface imaging technology, we evaluated setup accuracy, time, and dosimetric parameters between traditional tattoo-based setup techniques and a “tattoo-less” approach for lymph node positive and high-risk breast cancer patients requiring chest wall and regional nodal radiation.</div><div>Material/Methods</div><div>Patients receiving chest wall radiation for breast cancer underwent a traditional tattoo-based setup (TTB), alternating daily with a tattoo-less setup via surface imaging using AlignRT (ART) to serve as an internal control. Following initial setup (using tattoos or AlignRT), target position was verified by daily kV imaging, with matching on the chest wall bony anatomy representing ground truth. Translational (TS) and rotational shifts (RS) were ascertained, as were setup time and total in-room time. Delivered dosimetry was calculated using the reverse isocenter shift technique. Statistical analyses used the Wilcoxon Signed Rank test and Pitman-Morgan variance test.</div></div><div><h3>Results</h3><div>A total of 49 breast cancer patients receiving a total of 1118 fractions (n = 560 for ART and 558 for TTB) of chest wall radiation were analyzed. For tattoo-less setup via ART, the median absolute TS was 0.28 cm vertical (range: 0.14–––0.48), 0.24 cm lateral (0.10–––0.40), and 0.26 cm longitudinal (0.13––0.44). For TTB setup, the corresponding median TS were 0.34 cm (0.15–––0.52), 0.29 (0.13–––0.46), and 0.34 cm (0.14–––0.59), respectively. ART was significantly more accurate than TTB with regard to TS (p = 0.038, 0.007, <0.001, respectively). Variance testing also showed increased precision with ART in the vertical (p < 0.001) and longitudinal (p < 0.001) axes.</div><div>The median absolute RS for ART was 0.80° rotational (range:0.40–1.50), 0.60° roll (0.20–1.20), and 0.50° pitch (0.10–1.00). The corresponding median RS for TTB was 1.00° (0.40–1.70), 0.60° (0.20–1.20), and 0.50° (0.10–1.00). ART was significantly more accurate for RS than TTB (p = 0.023). ART setup was otherwise not statistically different from TTB regarding roll and pitch (p = 0.558, 0.929, respectively). ART showed no difference in precision versus TTB regarding RS, pitch, and roll (p = 0.181, p = 0.544, p = 0.858).</div><div>The median total in-room time for ART was 18.77 min (range: 16.04–20.77) and 18.70 min (17.58–20.67) for TTB (p = 0.38). The median setup time was 12.75 min (11.43–14.80) for ART and 13.78 min (12.42–15.09) for TTB (p = 0.054). There was no significant difference between the AlignRT and the tattoo-based methods for both setup and in-room time.</div></div><div><h3>Conclusion</h3><div>These findings indicate that utilizing the tattoo-less setup method with AlignRT provides sufficient accuracy and speed to potential
目的/目的皮肤文身是乳腺癌放射治疗表面对准和设置的标准,但也会造成不良的美容效果和患者的不满。随着当代表面成像技术的出现,我们评估了传统的基于纹身的设置技术和“无纹身”方法对淋巴结阳性和高风险乳腺癌患者需要胸壁和区域淋巴结放射的设置准确性、时间和剂量参数。材料/方法接受胸壁放射治疗的乳腺癌患者接受传统的基于纹身的设置(TTB),每天交替使用AlignRT (ART)通过表面成像进行无纹身的设置,作为内部控制。在初始设置(使用纹身或AlignRT)后,通过每日kV成像验证目标位置,胸壁骨骼解剖结构匹配代表基本事实。确定平移(TS)和旋转位移(RS),以及设置时间和总室内时间。使用反向等中心移位技术计算递送剂量。统计分析采用Wilcoxon sign Rank检验和Pitman-Morgan方差检验。结果49例乳腺癌患者共接受1118次胸壁放射治疗,ART组560例,TTB组558例。对于通过ART进行的无纹身设置,中位绝对TS为垂直0.28 cm(范围:0.14—0.48),横向0.24 cm(0.10—0.40),纵向0.26 cm(0.13—0.44)。对于TTB设置,相应的中位TS分别为0.34 cm(0.15—0.52)、0.29 cm(0.13—0.46)和0.34 cm(0.14—0.59)。ART在TS方面的准确性明显高于TTB (p = 0.038, 0.007, <0.001)。方差检验还显示,ART在垂直方向(p <;0.001)和纵向(p <;0.001)轴。ART的中位绝对RS为0.80°旋转(范围:0.40-1.50),0.60°滚动(0.20-1.20)和0.50°俯仰(0.10-1.00)。TTB相应的中位RS为1.00°(0.40-1.70)、0.60°(0.20-1.20)和0.50°(0.10-1.00)。ART诊断RS的准确率明显高于TTB (p = 0.023)。ART设置与TTB在侧倾和俯仰方面无统计学差异(p分别= 0.558,0.929)。ART与TTB在RS、俯仰和横摇方面的精度无差异(p = 0.181, p = 0.544, p = 0.858)。ART治疗的总室内时间中位数为18.77分钟(范围:16.04-20.77),TTB治疗的总室内时间中位数为18.70分钟(17.58-20.67)(p = 0.38)。ART的中位设置时间为12.75 min (11.43 ~ 14.80), TTB的中位设置时间为13.78 min (12.42 ~ 15.09) (p = 0.054)。在设置和室内时间方面,AlignRT和基于纹身的方法之间没有显着差异。结论使用AlignRT的无纹身设置方法提供了足够的准确性和速度,潜在地取代了需要胸壁和区域淋巴结放射治疗的淋巴结阳性和高危乳腺癌患者表面纹身的使用。涉及更大患者群体的进一步研究将进一步告知表面成像是否可以完全取代基于纹身的方法。
{"title":"Tattoo-less chest wall and regional nodal irradiation using surface imaging","authors":"Boris Mueller ,&nbsp;Yulin Song ,&nbsp;Xingchen Zhai ,&nbsp;Yubei Liang ,&nbsp;Paul Tamas ,&nbsp;Simon Powell ,&nbsp;David M Guttmann ,&nbsp;Diana Roth O’Brien ,&nbsp;Beryl McCormick ,&nbsp;Atif Khan ,&nbsp;Laura Cervino-Arriba ,&nbsp;Bo Zhao ,&nbsp;Linda Hong ,&nbsp;Lior Z. Braunstein","doi":"10.1016/j.tipsro.2025.100310","DOIUrl":"10.1016/j.tipsro.2025.100310","url":null,"abstract":"&lt;div&gt;&lt;h3&gt;Purpose/Objective&lt;/h3&gt;&lt;div&gt;Skin tattoos represent the standard for surface alignment and setup of breast cancer radiotherapy yet contribute to adverse cosmesis and patient dissatisfaction. With the advent of contemporary surface imaging technology, we evaluated setup accuracy, time, and dosimetric parameters between traditional tattoo-based setup techniques and a “tattoo-less” approach for lymph node positive and high-risk breast cancer patients requiring chest wall and regional nodal radiation.&lt;/div&gt;&lt;div&gt;Material/Methods&lt;/div&gt;&lt;div&gt;Patients receiving chest wall radiation for breast cancer underwent a traditional tattoo-based setup (TTB), alternating daily with a tattoo-less setup via surface imaging using AlignRT (ART) to serve as an internal control. Following initial setup (using tattoos or AlignRT), target position was verified by daily kV imaging, with matching on the chest wall bony anatomy representing ground truth. Translational (TS) and rotational shifts (RS) were ascertained, as were setup time and total in-room time. Delivered dosimetry was calculated using the reverse isocenter shift technique. Statistical analyses used the Wilcoxon Signed Rank test and Pitman-Morgan variance test.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Results&lt;/h3&gt;&lt;div&gt;A total of 49 breast cancer patients receiving a total of 1118 fractions (n = 560 for ART and 558 for TTB) of chest wall radiation were analyzed. For tattoo-less setup via ART, the median absolute TS was 0.28 cm vertical (range: 0.14–––0.48), 0.24 cm lateral (0.10–––0.40), and 0.26 cm longitudinal (0.13––0.44). For TTB setup, the corresponding median TS were 0.34 cm (0.15–––0.52), 0.29 (0.13–––0.46), and 0.34 cm (0.14–––0.59), respectively. ART was significantly more accurate than TTB with regard to TS (p = 0.038, 0.007, &lt;0.001, respectively). Variance testing also showed increased precision with ART in the vertical (p &lt; 0.001) and longitudinal (p &lt; 0.001) axes.&lt;/div&gt;&lt;div&gt;The median absolute RS for ART was 0.80° rotational (range:0.40–1.50), 0.60° roll (0.20–1.20), and 0.50° pitch (0.10–1.00). The corresponding median RS for TTB was 1.00° (0.40–1.70), 0.60° (0.20–1.20), and 0.50° (0.10–1.00). ART was significantly more accurate for RS than TTB (p = 0.023). ART setup was otherwise not statistically different from TTB regarding roll and pitch (p = 0.558, 0.929, respectively). ART showed no difference in precision versus TTB regarding RS, pitch, and roll (p = 0.181, p = 0.544, p = 0.858).&lt;/div&gt;&lt;div&gt;The median total in-room time for ART was 18.77 min (range: 16.04–20.77) and 18.70 min (17.58–20.67) for TTB (p = 0.38). The median setup time was 12.75 min (11.43–14.80) for ART and 13.78 min (12.42–15.09) for TTB (p = 0.054). There was no significant difference between the AlignRT and the tattoo-based methods for both setup and in-room time.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Conclusion&lt;/h3&gt;&lt;div&gt;These findings indicate that utilizing the tattoo-less setup method with AlignRT provides sufficient accuracy and speed to potential","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":"34 ","pages":"Article 100310"},"PeriodicalIF":0.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Perceptions, educational expectations and knowledge gaps of patients with non-metastatic breast cancer regarding radiotherapy: Integrative review 非转移性乳腺癌患者对放疗的认知、教育期望和知识差距:综合评价
Q1 Nursing Pub Date : 2025-04-20 DOI: 10.1016/j.tipsro.2025.100312
Siret Kivistik , Eija Metsälä , Heli Virtanen

Objective

This integrative review investigates perceptions, educational expectations, and knowledge gaps of patients with breast cancer (BC) regarding radiotherapy (RT).

Methods

The included studies were analysed using a thematic analysis approach. Each segment of data was coded with open coding. The codes were gathered into subthemes as they emerged and into overarching themes, after which the data was analysed again.

Results

22 studies were included: 11 qualitative, 10 cross-sectional, and 1 case study. Our findings indicate that breast cancer patients perceptions of radiation therapy (RT) are influenced by their understanding of RT, its side effects, the treatment burden, emotional state or feelings, effectiveness if RT, prognosis, and viewing RT as the end-of-care phase. They expect education on the treatment pathway, psychosocial support, personalised aspects of RT, planning, delivery, follow-up, and side effects. Additionally, women undergoing RT have knowledge gaps related to preparedness and support, unforeseen risks and side effects, as well as daily practical issues.

Conclusion

Tailored, culturally sensitive education is essential to bridge gaps in understanding, manage anxiety, and build trust. It requires individualized communication strategies and psychosocial support. By integrating personalized information and leveraging technological solutions, healthcare providers can empower patients, improve adherence, and enhance outcomes, particularly in resource-limited settings.
目的:研究乳腺癌(BC)患者对放疗(RT)的认知、教育期望和知识差距。方法采用专题分析法对纳入的研究进行分析。每段数据采用开放编码进行编码。这些代码在出现时被收集成次级主题和总体主题,之后再对数据进行分析。结果共纳入22项研究:11项定性研究,10项横断面研究,1项个案研究。我们的研究结果表明,乳腺癌患者对放射治疗(RT)的认知受其对放疗的理解、其副作用、治疗负担、情绪状态或感受、放疗的有效性、预后以及将放疗视为临终关怀阶段的影响。他们期望接受有关治疗途径、社会心理支持、治疗个性化、计划、交付、随访和副作用方面的教育。此外,接受放射治疗的妇女在准备和支持、不可预见的风险和副作用以及日常实际问题方面存在知识差距。结论量身定制的文化敏感教育对于弥合理解差距、管理焦虑和建立信任至关重要。它需要个性化的沟通策略和社会心理支持。通过集成个性化信息和利用技术解决方案,医疗保健提供者可以增强患者的能力,提高依从性,并改善结果,特别是在资源有限的环境中。
{"title":"Perceptions, educational expectations and knowledge gaps of patients with non-metastatic breast cancer regarding radiotherapy: Integrative review","authors":"Siret Kivistik ,&nbsp;Eija Metsälä ,&nbsp;Heli Virtanen","doi":"10.1016/j.tipsro.2025.100312","DOIUrl":"10.1016/j.tipsro.2025.100312","url":null,"abstract":"<div><h3>Objective</h3><div>This integrative review investigates perceptions, educational expectations, and knowledge gaps of patients with breast cancer (BC) regarding radiotherapy (RT).</div></div><div><h3>Methods</h3><div>The included studies were analysed using a thematic analysis approach. Each segment of data was coded with open coding. The codes were gathered into subthemes as they emerged and into overarching themes, after which the data was analysed again.</div></div><div><h3>Results</h3><div>22 studies were included: 11 qualitative, 10 cross-sectional, and 1 case study. Our findings indicate that breast cancer patients perceptions of radiation therapy (RT) are influenced by their understanding of RT, its side effects, the treatment burden, emotional state or feelings, effectiveness if RT, prognosis, and viewing RT as the end-of-care phase. They expect education on the treatment pathway, psychosocial support, personalised aspects of RT, planning, delivery, follow-up, and side effects. Additionally, women undergoing RT have knowledge gaps related to preparedness and support, unforeseen risks and side effects, as well as daily practical issues.</div></div><div><h3>Conclusion</h3><div>Tailored, culturally sensitive education is essential to bridge gaps in understanding, manage anxiety, and build trust. It requires individualized communication strategies and psychosocial support. By integrating personalized information and leveraging technological solutions, healthcare providers can empower patients, improve adherence, and enhance outcomes, particularly in resource-limited settings.</div></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":"34 ","pages":"Article 100312"},"PeriodicalIF":0.0,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The impact of Clinical Trials Radiographers on set-up and recruitment to radiotherapy trials 临床试验放射技师对放射治疗试验的设置和招募的影响
Q1 Nursing Pub Date : 2025-04-04 DOI: 10.1016/j.tipsro.2025.100309
Donna Caldwell , Aileen Duffton , Chloe Wilkinson

Background

The primary role of the Clinical Trials Radiographer (CTR) within the UK workforce is the set-up and initiation of new trials, and recruitment of patients. There is very little published evidence to indicate the impact and value of the CTR. The aim of this study is to describe the evolving role of the CTR and to quantify impact on set-up, and recruitment to Radiotherapy (RT) clinical trials.

Results

The number of trials approved and opened annually, number of open studies within the portfolio, and number of patients recruited have all increased alongside the number of CTR hours.

Conclusion

The data provides quantitative evidence to support the impact of the CTR role and its value in a RT department’s research infrastructure. This reinforces the need to consider the CTR position in long term funding and future workforce planning.
临床试验放射技师(CTR)在英国工作队伍中的主要作用是建立和启动新的试验,以及招募患者。很少有公开的证据表明CTR的影响和价值。本研究的目的是描述CTR的演变作用,并量化对放疗(RT)临床试验的设置和招募的影响。结果:每年批准和开放的试验数量、研究组合中开放的研究数量和招募的患者数量都随着CTR小时数的增加而增加。结论该数据为支持CTR角色的影响及其在RT部门研究基础设施中的价值提供了定量证据。这加强了考虑CTR在长期资金和未来劳动力规划中的地位的必要性。
{"title":"The impact of Clinical Trials Radiographers on set-up and recruitment to radiotherapy trials","authors":"Donna Caldwell ,&nbsp;Aileen Duffton ,&nbsp;Chloe Wilkinson","doi":"10.1016/j.tipsro.2025.100309","DOIUrl":"10.1016/j.tipsro.2025.100309","url":null,"abstract":"<div><h3>Background</h3><div>The primary role of the Clinical Trials Radiographer (CTR) within the UK workforce is the set-up and initiation of new trials, and recruitment of patients. There is very little published evidence to indicate the impact and value of the CTR. The aim of this study is to describe the evolving role of the CTR and to quantify impact on set-up, and recruitment to Radiotherapy (RT) clinical trials.</div></div><div><h3>Results</h3><div>The number of trials approved and opened annually, number of open studies within the portfolio, and number of patients recruited have all increased alongside the number of CTR hours.</div></div><div><h3>Conclusion</h3><div>The data provides quantitative evidence to support the impact of the CTR role and its value in a RT department’s research infrastructure. This reinforces the need to consider the CTR position in long term funding and future workforce planning.</div></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":"34 ","pages":"Article 100309"},"PeriodicalIF":0.0,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143848137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of MRI anatomy in machine learning predictive models to assess hydrogel spacer benefit for prostate cancer patients 评估MRI解剖在机器学习预测模型中评估水凝胶间隔剂对前列腺癌患者的益处
Q1 Nursing Pub Date : 2025-02-26 DOI: 10.1016/j.tipsro.2025.100305
Madison Bush , Scott Jones , Catriona Hargrave

Introduction

Hydrogel spacers (HS) are designed to minimise the radiation doses to the rectum in prostate cancer radiation therapy (RT) by creating a physical gap between the rectum and the target treatment volume inclusive of the prostate and seminal vesicles (SV). This study aims to determine the feasibility of incorporating diagnostic MRI (dMRI) information in statistical machine learning (SML) models developed with planning CT (pCT) anatomy for dose and rectal toxicity prediction. The SML models aim to support HS insertion decision-making prior to RT planning procedures.

Methods

Regions of interest (ROIs) were retrospectively contoured on the pCT and registered dMRI scans for 20 patients. ROI Dice and Hausdorff distance (HD) comparison metrics were calculated. The ROI and patient clinical risk factors (CRFs) variables were inputted into three SML models and then pCT and dMRI-based dose and toxicity model performance compared through confusion matrices, AUC curves, accuracy performance metric results and observed patient outcomes.

Results

Average Dice values comparing dMRI and pCT ROIs were 0.81, 0.47 and 0.71 for the prostate, SV, and rectum respectively. Average Hausdorff distances were 2.15, 2.75 and 2.75 mm for the prostate, SV, and rectum respectively. The average accuracy metric across all models was 0.83 when using dMRI ROIs and 0.85 when using pCT ROIs.

Conclusion

Differences between pCT and dMRI anatomical ROI variables did not impact SML model performance in this study, demonstrating the feasibility of using dMRI images. Due to the limited sample size further training of the predictive models including dMRI anatomy is recommended.
水凝胶间隔剂(HS)旨在通过在直肠和包括前列腺和精囊(SV)在内的目标治疗体积之间创造物理间隙,将前列腺癌放射治疗(RT)中直肠的辐射剂量降至最低。本研究旨在确定将诊断性MRI (dMRI)信息纳入统计机器学习(SML)模型的可行性,该模型与计划CT (pCT)解剖一起开发,用于剂量和直肠毒性预测。SML模型旨在支持在RT规划程序之前的HS插入决策。方法回顾性分析20例患者的感兴趣区域(roi)在pCT和dMRI扫描上的轮廓。计算ROI Dice和Hausdorff distance (HD)比较指标。将ROI和患者临床危险因素(CRFs)变量输入到三个SML模型中,然后通过混淆矩阵、AUC曲线、准确性性能度量结果和观察到的患者结果比较pCT和dmri的剂量和毒性模型的性能。结果前列腺、SV和直肠dMRI与pCT roi的平均Dice值分别为0.81、0.47和0.71。前列腺、SV和直肠的平均Hausdorff距离分别为2.15、2.75和2.75 mm。使用dMRI roi时,所有模型的平均精度指标为0.83,使用pCT roi时为0.85。结论pCT和dMRI解剖ROI变量的差异在本研究中没有影响SML模型的性能,证明了使用dMRI图像的可行性。由于样本量有限,建议对包括dMRI解剖在内的预测模型进行进一步训练。
{"title":"Evaluation of MRI anatomy in machine learning predictive models to assess hydrogel spacer benefit for prostate cancer patients","authors":"Madison Bush ,&nbsp;Scott Jones ,&nbsp;Catriona Hargrave","doi":"10.1016/j.tipsro.2025.100305","DOIUrl":"10.1016/j.tipsro.2025.100305","url":null,"abstract":"<div><h3>Introduction</h3><div>Hydrogel spacers (HS) are designed to minimise the radiation doses to the rectum in prostate cancer radiation therapy (RT) by creating a physical gap between the rectum and the target treatment volume inclusive of the prostate and seminal vesicles (SV). This study aims to determine the feasibility of incorporating diagnostic MRI (dMRI) information in statistical machine learning (SML) models developed with planning CT (pCT) anatomy for dose and rectal toxicity prediction. The SML models aim to support HS insertion decision-making prior to RT planning procedures.</div></div><div><h3>Methods</h3><div>Regions of interest (ROIs) were retrospectively contoured on the pCT and registered dMRI scans for 20 patients. ROI Dice and Hausdorff distance (HD) comparison metrics were calculated. The ROI and patient clinical risk factors (CRFs) variables were inputted into three SML models and then pCT and dMRI-based dose and toxicity model performance compared through confusion matrices, AUC curves, accuracy performance metric results and observed patient outcomes.</div></div><div><h3>Results</h3><div>Average Dice values comparing dMRI and pCT ROIs were 0.81, 0.47 and 0.71 for the prostate, SV, and rectum respectively. Average Hausdorff distances were 2.15, 2.75 and 2.75 mm for the prostate, SV, and rectum respectively. The average accuracy metric across all models was 0.83 when using dMRI ROIs and 0.85 when using pCT ROIs.</div></div><div><h3>Conclusion</h3><div>Differences between pCT and dMRI anatomical ROI variables did not impact SML model performance in this study, demonstrating the feasibility of using dMRI images. Due to the limited sample size further training of the predictive models including dMRI anatomy is recommended.</div></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":"34 ","pages":"Article 100305"},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Treatment efficiency and quality improvement via double imaging modality (DIM) versus single imaging modality (SIM) image-guided radiotherapy for prostate cancer 双成像模式(DIM)与单成像模式(SIM)影像引导放射治疗前列腺癌的疗效和质量提高
Q1 Nursing Pub Date : 2025-02-21 DOI: 10.1016/j.tipsro.2025.100307
Milad Mirzaei , Suki Gill , Mahsheed Sabet , Martin A. Ebert , Pejman Rowshanfarzad , Jake Kendrick , Angela Jacques , Clare Herbert , Jeremy Croker , Sean Bydder , Joshua Dass , Edward Bailey , Rohen White , Catherine Moffat , Colin Tang , Adriano Polpo , Nicholas Bucknell

Purpose

Daily image-guided radiotherapy (IGRT) for prostate cancer reduces treatment-related toxicity. However, positional and anatomical variations can result in patient re-setup, increased treatment time, and additional imaging dose. A simple technique of two distinct imaging modalities was investigated: initially, an anteroposterior kilovoltage (AP-kV) planar image was acquired, followed by cone beam computed tomography (CBCT). To determine whether this dual imaging modality (DIM) can reduce repeat CBCTs with an AP-kV screening image compared to CBCT alone, i.e. a single imaging modality (SIM).

Methods

Patients were enrolled sequentially before and after the new departmental protocol for IGRT. Initially, all patients had a CBCT prior to treatment (SIM group) as usual. For the DIM group, AP-kV imaging was added to the first three fractions, and subsequent AP-kV imaging (on demand) for patients unable to maintain adequate bladder and bowel compliance. Sixty intact prostate or post-prostatectomy patients were included: 30 before the change in protocol (SIM group) and 30 after (DIM group). Bladder volume, rectal filling, and positioning errors were evaluated.

Results

In the SIM group, 30 patients underwent a total of 1116 CBCTs. In the DIM group, 30 patients had 156 AP-kV images and 1077 CBCTs. In the SIM group, 166 were repeat CBCTs with a median of 4 repeat CBCTs per patient. In DIM group, 132 were repeat CBCTs with a median of 3 repeat CBCTs per patient. We found a significant difference in incidence of repeat CBCTs due to suboptimal bladder filling (p = 0.028) and rectal gas (p = 0.045), indicating the number of repeat CBCTs was significantly lower in patients imaged with DIM.

Conclusion

The DIM technique was found to be superior to the SIM technique, as it allowed the desired bladder volume, rectal condition, and patient positioning to be achieved prior to CBCT, reducing the need for repeat CBCTs.
目的摄护腺癌每日影像引导放射治疗(IGRT)可降低治疗相关毒性。然而,位置和解剖结构的变化可能导致患者重新安置,增加治疗时间和额外的成像剂量。研究了一种简单的两种不同成像方式的技术:首先,获得正面千电压(AP-kV)平面图像,然后进行锥束计算机断层扫描(CBCT)。为了确定与单独CBCT相比,这种双重成像模式(DIM)是否可以减少AP-kV筛查图像的重复CBCT,即单一成像模式(SIM)。方法在IGRT新科室方案前后依次入组患者。最初,所有患者在治疗前进行CBCT检查(SIM组)。对于DIM组,在前三个部分添加AP-kV成像,对于无法维持足够的膀胱和肠道顺应性的患者,随后添加AP-kV成像(按需)。纳入60例完整前列腺或前列腺切除术后患者:方案改变前30例(SIM组),方案改变后30例(DIM组)。评估膀胱体积、直肠充盈和定位误差。结果SIM组30例患者共进行了1116次cbct。在DIM组中,30例患者有156张AP-kV图像和1077张cbct。在SIM组中,166例为重复cbct,每位患者中位数为4例重复cbct。DIM组132例为重复cbct,平均每位患者3例重复cbct。我们发现,由于膀胱填充不理想(p = 0.028)和直肠气体(p = 0.045),重复CBCT的发生率有显著差异,这表明使用DIM成像的患者重复CBCT的次数明显减少。结论DIM技术优于SIM技术,因为它可以在CBCT之前获得所需的膀胱体积、直肠状况和患者体位,减少了重复CBCT的需要。
{"title":"Treatment efficiency and quality improvement via double imaging modality (DIM) versus single imaging modality (SIM) image-guided radiotherapy for prostate cancer","authors":"Milad Mirzaei ,&nbsp;Suki Gill ,&nbsp;Mahsheed Sabet ,&nbsp;Martin A. Ebert ,&nbsp;Pejman Rowshanfarzad ,&nbsp;Jake Kendrick ,&nbsp;Angela Jacques ,&nbsp;Clare Herbert ,&nbsp;Jeremy Croker ,&nbsp;Sean Bydder ,&nbsp;Joshua Dass ,&nbsp;Edward Bailey ,&nbsp;Rohen White ,&nbsp;Catherine Moffat ,&nbsp;Colin Tang ,&nbsp;Adriano Polpo ,&nbsp;Nicholas Bucknell","doi":"10.1016/j.tipsro.2025.100307","DOIUrl":"10.1016/j.tipsro.2025.100307","url":null,"abstract":"<div><h3>Purpose</h3><div>Daily image-guided radiotherapy (IGRT) for prostate cancer reduces treatment-related toxicity. However, positional and anatomical variations can result in patient re-setup, increased treatment time, and additional imaging dose. A simple technique of two distinct imaging modalities was investigated: initially, an anteroposterior kilovoltage (AP-kV) planar image was acquired, followed by cone beam computed tomography (CBCT). To determine whether this dual imaging modality (DIM) can reduce repeat CBCTs with an AP-kV screening image compared to CBCT alone, <em>i.e.</em> a single imaging modality (SIM).</div></div><div><h3>Methods</h3><div>Patients were enrolled sequentially before and after the new departmental protocol for IGRT. Initially, all patients had a CBCT prior to treatment (SIM group) as usual. For the DIM group, AP-kV imaging was added to the first three fractions, and subsequent AP-kV imaging (on demand) for patients unable to maintain adequate bladder and bowel compliance. Sixty intact prostate or post-prostatectomy patients were included: 30 before the change in protocol (SIM group) and 30 after (DIM group). Bladder volume, rectal filling, and positioning errors were evaluated.</div></div><div><h3>Results</h3><div>In the SIM group, 30 patients underwent a total of 1116 CBCTs. In the DIM group, 30 patients had 156 AP-kV images and 1077 CBCTs. In the SIM group, 166 were repeat CBCTs with a median of 4 repeat CBCTs per patient. In DIM group, 132 were repeat CBCTs with a median of 3 repeat CBCTs per patient. We found a significant difference in incidence of repeat CBCTs due to suboptimal bladder filling (p = 0.028) and rectal gas (p = 0.045), indicating the number of repeat CBCTs was significantly lower in patients imaged with DIM.</div></div><div><h3>Conclusion</h3><div>The DIM technique was found to be superior to the SIM technique, as it allowed the desired bladder volume, rectal condition, and patient positioning to be achieved prior to CBCT, reducing the need for repeat CBCTs.</div></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":"33 ","pages":"Article 100307"},"PeriodicalIF":0.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Patient experience preparing for prostate cancer radiotherapy 前列腺癌放疗准备的患者经验
Q1 Nursing Pub Date : 2025-02-17 DOI: 10.1016/j.tipsro.2025.100306
S.E. Alexander , J. Selous-Hodges , A. Araujo , L. Booth , L. Delacroix , E. Garrad , A. Gordon , C. Graham , A. Guerra , C. Gulyaeva , C. Ockwell , S. Shire , U. Oelfke , H.A. McNair , A.C. Tree

Introduction

Bladder and rectal preparation regimes for prostate cancer (PCa) radiotherapy (RT) can heighten anxiety before and during RT. Patient’s perception of RT preparation is under-represented in the literature. To address this gap, patient’s experience of preparation with respect to understanding, comfort, anxiety, effectiveness and impact on daily life was examined.

Materials and methods

A novel patient preparation survey was created and validated, it contained 12 original questions related to general, bladder and rectal preparation. Plus, the Patient Health Questionnaire 4 (PHQ4) and question 15 of the Expanded Prostate Cancer Index Composite (EPIC).
Eligible patients were individuals referred for prostate or prostate bed +/− pelvic lymph node RT from March-May 2024. Surveys were issued immediately after the patient’s planning scan, those completing the survey at this timepoint were asked to repeat it in their first and final weeks of RT.

Results

The survey was completed by 103/125 eligible patients at their planning scan, 47/103 in the first and 52/103 in the final week of RT. Perception of preparation was largely positive. For general and bladder preparation positive question response rate ranged from 55 to 98 % and negative from 0 to 26 %. Rectal preparation response rate was 59–100 % positive and 0–35 % negative. Difficulty maintaining a full bladder and using enemas was greatest at the end of RT.
No significant difference in experience was found for participants using or not using enemas for preparation. Anxiety and depression (PHQ4) affected 12–13 % of respondents, and significantly more patients reported bowel toxicity (EPIC), in the last week of RT compared to earlier timepoints.

Conclusion

The authors conclude that the preparation needs of their patients are well met. However, a considerable number did find preparation difficult, disruptive and ineffective, more so at the end of treatment. Further qualitative analysis of patient’s experience is needed to better understand why individuals experience varies.
前列腺癌(PCa)放射治疗(RT)的膀胱和直肠准备方案可以在放疗前和放疗期间增加焦虑。患者对RT准备的感知在文献中代表性不足。为了解决这一差距,研究了患者在理解、舒适、焦虑、有效性和对日常生活的影响方面的准备经验。材料与方法创建并验证了一项新的患者准备调查,该调查包含12个与一般准备、膀胱准备和直肠准备相关的原始问题。另外,患者健康问卷4 (PHQ4)和扩展前列腺癌指数复合(EPIC)问题15。符合条件的患者是2024年3月至5月期间转介进行前列腺或前列腺床+/−盆腔淋巴结RT的个体。调查在患者计划扫描后立即发布,在此时间点完成调查的患者被要求在他们的第一周和最后一周重复调查。结果103/125符合条件的患者在计划扫描时完成了调查,47/103在第一周完成了调查,52/103在最后一周完成了调查。对于一般和膀胱准备,阳性问题的回答率从55%到98%不等,阴性问题的回答率从0到26%不等。直肠准备反应率为59 - 100%阳性,0 - 35%阴性。在实验结束时,维持膀胱充盈和使用灌肠是最困难的。使用或不使用灌肠进行准备的参与者在经验上没有显著差异。焦虑和抑郁(PHQ4)影响了12 - 13%的应答者,与早期时间点相比,在RT的最后一周,更多的患者报告了肠道毒性(EPIC)。结论满足了患者的制剂需求。然而,相当多的人确实发现准备工作困难,破坏性和无效,在治疗结束时更是如此。需要对患者的经历进行进一步的定性分析,以更好地理解为什么个体的经历不同。
{"title":"Patient experience preparing for prostate cancer radiotherapy","authors":"S.E. Alexander ,&nbsp;J. Selous-Hodges ,&nbsp;A. Araujo ,&nbsp;L. Booth ,&nbsp;L. Delacroix ,&nbsp;E. Garrad ,&nbsp;A. Gordon ,&nbsp;C. Graham ,&nbsp;A. Guerra ,&nbsp;C. Gulyaeva ,&nbsp;C. Ockwell ,&nbsp;S. Shire ,&nbsp;U. Oelfke ,&nbsp;H.A. McNair ,&nbsp;A.C. Tree","doi":"10.1016/j.tipsro.2025.100306","DOIUrl":"10.1016/j.tipsro.2025.100306","url":null,"abstract":"<div><h3>Introduction</h3><div>Bladder and rectal preparation regimes for prostate cancer (PCa) radiotherapy (RT) can heighten anxiety before and during RT. Patient’s perception of RT preparation is under-represented in the literature. To address this gap, patient’s experience of preparation with respect to understanding, comfort, anxiety, effectiveness and impact on daily life was examined.</div></div><div><h3>Materials and methods</h3><div>A novel patient preparation survey was created and validated, it contained 12 original questions related to general, bladder and rectal preparation. Plus, the Patient Health Questionnaire 4 (PHQ4) and question 15 of the Expanded Prostate Cancer Index Composite (EPIC).</div><div>Eligible patients were individuals referred for prostate or prostate bed +/− pelvic lymph node RT from March-May 2024. Surveys were issued immediately after the patient’s planning scan, those completing the survey at this timepoint were asked to repeat it in their first and final weeks of RT.</div></div><div><h3>Results</h3><div>The survey was completed by 103/125 eligible patients at their planning scan, 47/103 in the first and 52/103 in the final week of RT. Perception of preparation was largely positive. For general and bladder preparation positive question response rate ranged from 55 to 98 % and negative from 0 to 26 %. Rectal preparation response rate was 59–100 % positive and 0–35 % negative. Difficulty maintaining a full bladder and using enemas was greatest at the end of RT.</div><div>No significant difference in experience was found for participants using or not using enemas for preparation. Anxiety and depression (PHQ4) affected 12–13 % of respondents, and significantly more patients reported bowel toxicity (EPIC), in the last week of RT compared to earlier timepoints.</div></div><div><h3>Conclusion</h3><div>The authors conclude that the preparation needs of their patients are well met. However, a considerable number did find preparation difficult, disruptive and ineffective, more so at the end of treatment. Further qualitative analysis of patient’s experience is needed to better understand why individuals experience varies.</div></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":"33 ","pages":"Article 100306"},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Training for tomorrow: Establishing a worldwide curriculum in online adaptive radiation therapy 面向未来的培训:建立在线适应性放射治疗的全球课程
Q1 Nursing Pub Date : 2025-02-05 DOI: 10.1016/j.tipsro.2025.100304
Meegan Shepherd , Elizabeth Joyce , Bethany Williams , Siobhan Graham , Winnie Li , Jeremy Booth , Helen A. McNair
This commentary discusses the implementation of online adaptive radiation therapy (oART) in cancer treatment within the context of current challenges faced by radiation therapy professionals. oART enables modifications to treatment plans based on daily imaging, enhancing target accuracy while minimising harm to surrounding organs. Despite its potential to improve patient outcomes, the application of oART is hindered by notable barriers, particularly in human resources. A global shortage of skilled radiation professionals such as radiation therapists or therapeutic radiographers (RTTs), medical physicists and radiation oncologists, along with training challenges in online adaptive techniques, hinders oART implementation and sustainability. Moreover, geographical disparities limit access to advanced training programs, leaving RTTs and their patients in underserved regions at a disadvantage. There is growing global evidence that RTTs are being successfully trained to lead adaptive fractions in both cone-beam computed tomography and magnetic resonance imaging guided oART. This commentary proposes the notion of standards for a global training curriculum to address barriers and expand RTT capabilities in delivering oART. By leveraging artificial intelligence and fostering interdisciplinary collaboration, the radiation therapy field can enhance efficiency and accuracy in oART. Successful training models from leading institutions illustrate the importance of hands-on experience and ongoing mentorship. A coordinated effort among stakeholders is essential to establish a comprehensive global training framework, ultimately improving patient access to oART and elevating standards of care worldwide.
这篇评论讨论了在当前放射治疗专业人员面临挑战的背景下,在线适应性放射治疗(oART)在癌症治疗中的实施。oART可以根据日常成像修改治疗计划,提高目标准确性,同时最大限度地减少对周围器官的伤害。尽管有可能改善患者的预后,但oART的应用受到明显障碍的阻碍,特别是在人力资源方面。全球缺乏熟练的放射专业人员,如放射治疗师或放射治疗技师(rtt)、医学物理学家和放射肿瘤学家,以及在线适应技术方面的培训挑战,阻碍了oART的实施和可持续性。此外,地域差异限制了获得高级培训项目的机会,使服务不足地区的rtt及其患者处于不利地位。越来越多的全球证据表明,rtt正在成功地训练,以引导锥束计算机断层扫描和磁共振成像引导的oART中的自适应分数。本评注提出了全球培训课程标准的概念,以解决提供抗逆转录病毒药物治疗方面的障碍并扩大RTT的能力。通过利用人工智能和促进跨学科合作,放射治疗领域可以提高oART的效率和准确性。来自领先机构的成功培训模式说明了实践经验和持续指导的重要性。利益攸关方之间的协调努力对于建立一个全面的全球培训框架至关重要,从而最终改善患者获得抗逆转录病毒药物治疗的机会并提高全世界的护理标准。
{"title":"Training for tomorrow: Establishing a worldwide curriculum in online adaptive radiation therapy","authors":"Meegan Shepherd ,&nbsp;Elizabeth Joyce ,&nbsp;Bethany Williams ,&nbsp;Siobhan Graham ,&nbsp;Winnie Li ,&nbsp;Jeremy Booth ,&nbsp;Helen A. McNair","doi":"10.1016/j.tipsro.2025.100304","DOIUrl":"10.1016/j.tipsro.2025.100304","url":null,"abstract":"<div><div>This commentary discusses the implementation of online adaptive radiation therapy (oART) in cancer treatment within the context of current challenges faced by radiation therapy professionals. oART enables modifications to treatment plans based on daily imaging, enhancing target accuracy while minimising harm to surrounding organs. Despite its potential to improve patient outcomes, the application of oART is hindered by notable barriers, particularly in human resources. A global shortage of skilled radiation professionals such as radiation therapists or therapeutic radiographers (RTTs), medical physicists and radiation oncologists, along with training challenges in online adaptive techniques, hinders oART implementation and sustainability. Moreover, geographical disparities limit access to advanced training programs, leaving RTTs and their patients in underserved regions at a disadvantage. There is growing global evidence that RTTs are being successfully trained to lead adaptive fractions in both cone-beam computed tomography and magnetic resonance imaging guided oART. This commentary proposes the notion of standards for a global training curriculum to address barriers and expand RTT capabilities in delivering oART. By leveraging artificial intelligence and fostering interdisciplinary collaboration, the radiation therapy field can enhance efficiency and accuracy in oART. Successful training models from leading institutions illustrate the importance of hands-on experience and ongoing mentorship. A coordinated effort among stakeholders is essential to establish a comprehensive global training framework, ultimately improving patient access to oART and elevating standards of care worldwide.</div></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":"33 ","pages":"Article 100304"},"PeriodicalIF":0.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143377909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pan-Canadian assessment of image guided adaptive radiation therapy and the role of the radiation therapist 泛加拿大评估图像引导的适应性放射治疗和放射治疗师的作用
Q1 Nursing Pub Date : 2025-01-31 DOI: 10.1016/j.tipsro.2025.100303
Amanda Moreira , Tara Rosewall , Yat Tsang , Patricia Lindsay , Peter Chung , Winnie Li

Purpose

Adaptive radiation therapy (ART) is a close-looped process where anatomic changes observed during treatment are identified, leading to plan modification prior to treatment delivery. The aim of this study was to explore the status of ART across Canada and review the impact of adaptive technologies on the roles and responsibilities of Radiation Therapists (RTTs).

Materials and Methods

Study information and a link to a 30-question survey was sent via email to the RTT manager of all cancer centres across Canada (n = 48). The survey questions included centre demographics, presence of offline and/or online ART activities as standard of care, corresponding roles and responsibilities of the multidisciplinary team, and training activities. The survey was administered electronically and closed after a 3-week accrual period. Responses were analyzed using descriptive statistics.

Results

Thirty-two out of 48 centres responded across all ten provinces (67 % response rate). Twenty-five centres (78 %) currently perform ART, all of which practiced offline ART while 5 practiced online ART. Most common responses for lack of ART were ‘technical limitations’ and ‘lack of resources’. RTTs are responsible for 50 % (offline) versus 58 % (online) ART respectively, with the most notable change being the addition of target delineation to their daily practice.

Conclusions

The status of ART varies across Canada. Offline ART is commonly practiced, but online ART remains an infrequent process due to technical limitations and lack of resources. As centres move towards implementing online ART, the role of the RTT will need to be redefined with corresponding upskilling to support the emergent treatment paradigm.
目的适应性放射治疗(ART)是一个闭环过程,在治疗过程中观察到的解剖变化被识别出来,导致在治疗交付之前修改计划。本研究的目的是探索加拿大ART的现状,并回顾适应性技术对放射治疗师(rtt)角色和责任的影响。材料和方法研究信息和30个问题的调查链接通过电子邮件发送给加拿大所有癌症中心的RTT经理(n = 48)。调查问题包括中心人口统计、作为标准护理的线下和/或在线ART活动的存在、多学科团队的相应角色和责任以及培训活动。该调查以电子方式进行,并在3周的累积期后结束。采用描述性统计对反馈进行分析。结果在所有10个省的48个中心中,有32个做出了回应(67%的回复率)。目前有25个中心(78%)开展抗逆转录病毒治疗,所有中心均开展线下抗逆转录病毒治疗,5个中心开展在线抗逆转录病毒治疗。对缺乏抗逆转录病毒治疗最常见的回答是“技术限制”和“缺乏资源”。rtt分别负责50%(离线)和58%(在线)ART,最显著的变化是在其日常实践中增加了目标描述。结论:在加拿大,抗逆转录病毒治疗的现状各不相同。离线ART是一种普遍的做法,但由于技术限制和缺乏资源,在线ART仍然是一个罕见的过程。随着各中心朝着实施在线抗逆转录病毒治疗的方向发展,RTT的作用将需要重新定义,并相应提高技能,以支持紧急治疗模式。
{"title":"Pan-Canadian assessment of image guided adaptive radiation therapy and the role of the radiation therapist","authors":"Amanda Moreira ,&nbsp;Tara Rosewall ,&nbsp;Yat Tsang ,&nbsp;Patricia Lindsay ,&nbsp;Peter Chung ,&nbsp;Winnie Li","doi":"10.1016/j.tipsro.2025.100303","DOIUrl":"10.1016/j.tipsro.2025.100303","url":null,"abstract":"<div><h3>Purpose</h3><div>Adaptive radiation therapy (ART) is a close-looped process where anatomic changes observed during treatment are identified, leading to plan modification prior to treatment delivery. The aim of this study was to explore the status of ART across Canada and review the impact of adaptive technologies on the roles and responsibilities of Radiation Therapists (RTTs).</div></div><div><h3>Materials and Methods</h3><div>Study information and a link to a 30-question survey was sent via email to the RTT manager of all cancer centres across Canada (n = 48). The survey questions included centre demographics, presence of offline and/or online ART activities as standard of care, corresponding roles and responsibilities of the multidisciplinary team, and training activities. The survey was administered electronically and closed after a 3-week accrual period. Responses were analyzed using descriptive statistics.</div></div><div><h3>Results</h3><div>Thirty-two out of 48 centres responded across all ten provinces (67 % response rate). Twenty-five centres (78 %) currently perform ART, all of which practiced offline ART while 5 practiced online ART. Most common responses for lack of ART were ‘technical limitations’ and ‘lack of resources’. RTTs are responsible for 50 % (offline) versus 58 % (online) ART respectively, with the most notable change being the addition of target delineation to their daily practice.</div></div><div><h3>Conclusions</h3><div>The status of ART varies across Canada. Offline ART is commonly practiced, but online ART remains an infrequent process due to technical limitations and lack of resources. As centres move towards implementing online ART, the role of the RTT will need to be redefined with corresponding upskilling to support the emergent treatment paradigm.</div></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":"33 ","pages":"Article 100303"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Geometric and dosimetric evaluation of CTV contour adaptations by radiation therapists for adaptive prostate radiotherapy on a 0.35 T MR-Linac 放射治疗师在0.35 T MR-Linac上进行适应性前列腺放疗时CTV轮廓适应的几何和剂量学评价
Q1 Nursing Pub Date : 2025-01-13 DOI: 10.1016/j.tipsro.2025.100302
Boaz Kalkhoven , Marjolein N. Hilberts , Melissa A.L. Verdonk , An-Sofie E. Verrijssen , Peter-Paul G. van der Toorn , Tom C.G. Budiharto , Patricia F.C. Bronius , Diana Geerts , Coen W. Hurkmans , Shyama U. Tetar , Rob H.N. Tijssen

Background & purpose

Magnetic resonance guided adaptive radiotherapy (MRgART) enables hypofractionated prostate radiotherapy by daily contour adaptation. The MRgART workflow, however, is labour intensive and in many institutes still requires the presence of the radiation oncologist (RO). Transferring the online contour adaptation task to the radiation therapist (RTT) will release the clinician from attending each treatment fraction making MRgRT more efficient and cost effective. In this study we investigate the viability of RTT-led prostate MRgART on a low-field MR-linac, by assessing the interobserver variations of RTT- and RO-generated CTV contour adaptations as well as the resulting dosimetric effects.

Materials & methods

Four RTTs and four ROs performed CTV contour adaptations on first fraction data in ten patients. Delineations were compared against a gold standard contour using target volume, Dice similarity coefficient (DSC), and 95th percentile Hausdorff distance. In addition, a dosimetric evaluation was performed on all first fractions by performing plan adaptations based on all RTT contour adaptation and comparing these to the clinically delivered plan. Finally, a full-treatment simulation was performed in four patients to investigate the dosimetric effects of the RTTs’ contour adaptations throughout an entire treatment.

Results

RTTs with no experience in prostate delineation prior to this study spent more time on CTV contour adaptations. The geometric and dosimetric analyses, however, showed no statistically significant differences between both groups.

Conclusions

This study confirmed that RTTs perform similarly to ROs in carrying out online contour adaptations. These results indicate the feasibility of initiating a transition in contour adaptation tasks from ROs to RTTs.
背景,目的磁共振引导自适应放疗(MRgART)通过日常的轮廓适应实现前列腺低分割放疗。然而,MRgART的工作流程是劳动密集型的,在许多研究所仍然需要放射肿瘤学家(RO)的存在。将在线轮廓适应任务转移给放射治疗师(RTT)将使临床医生从参加每个治疗部分中解脱出来,使MRgRT更加高效和经济。在这项研究中,我们通过评估RTT和ro产生的CTV轮廓适应的观察者之间的变化以及由此产生的剂量学效应,研究了RTT引导的前列腺MRgART在低场MR-linac上的可行性。材料,方法4个rtt和4个ROs对10例患者的一段数据进行CTV等值线调整。使用目标体积、Dice相似系数(DSC)和第95百分位Hausdorff距离将所描绘的轮廓与金标准轮廓进行比较。此外,通过基于所有RTT轮廓调整的计划调整,并将其与临床交付的计划进行比较,对所有第一部分进行剂量学评估。最后,在四名患者中进行了全治疗模拟,以研究rtt在整个治疗过程中轮廓适应的剂量学效应。结果在本研究之前没有前列腺描绘经验的rtt在CTV等值线适应上花费了更多的时间。然而,几何和剂量学分析显示两组之间没有统计学上的显著差异。本研究证实rtt在进行在线轮廓适应方面与ROs相似。这些结果表明,在轮廓自适应任务中开始从ROs向rtt过渡是可行的。
{"title":"Geometric and dosimetric evaluation of CTV contour adaptations by radiation therapists for adaptive prostate radiotherapy on a 0.35 T MR-Linac","authors":"Boaz Kalkhoven ,&nbsp;Marjolein N. Hilberts ,&nbsp;Melissa A.L. Verdonk ,&nbsp;An-Sofie E. Verrijssen ,&nbsp;Peter-Paul G. van der Toorn ,&nbsp;Tom C.G. Budiharto ,&nbsp;Patricia F.C. Bronius ,&nbsp;Diana Geerts ,&nbsp;Coen W. Hurkmans ,&nbsp;Shyama U. Tetar ,&nbsp;Rob H.N. Tijssen","doi":"10.1016/j.tipsro.2025.100302","DOIUrl":"10.1016/j.tipsro.2025.100302","url":null,"abstract":"<div><h3>Background &amp; purpose</h3><div>Magnetic resonance guided adaptive radiotherapy (MRgART) enables hypofractionated prostate radiotherapy by daily contour adaptation. The MRgART workflow, however, is labour intensive and in many institutes still requires the presence of the radiation oncologist (RO). Transferring the online contour adaptation task to the radiation therapist (RTT) will release the clinician from attending each treatment fraction making MRgRT more efficient and cost effective. In this study we investigate the viability of RTT-led prostate MRgART on a low-field MR-linac, by assessing the interobserver variations of RTT- and RO-generated CTV contour adaptations as well as the resulting dosimetric effects.</div></div><div><h3>Materials &amp; methods</h3><div>Four RTTs and four ROs performed CTV contour adaptations on first fraction data in ten patients. Delineations were compared against a gold standard contour using target volume, Dice similarity coefficient (DSC), and 95th percentile Hausdorff distance. In addition, a dosimetric evaluation was performed on all first fractions by performing plan adaptations based on all RTT contour adaptation and comparing these to the clinically delivered plan. Finally, a full-treatment simulation was performed in four patients to investigate the dosimetric effects of the RTTs’ contour adaptations throughout an entire treatment.</div></div><div><h3>Results</h3><div>RTTs with no experience in prostate delineation prior to this study spent more time on CTV contour adaptations. The geometric and dosimetric analyses, however, showed no statistically significant differences between both groups.</div></div><div><h3>Conclusions</h3><div>This study confirmed that RTTs perform similarly to ROs in carrying out online contour adaptations. These results indicate the feasibility of initiating a transition in contour adaptation tasks from ROs to RTTs.</div></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":"33 ","pages":"Article 100302"},"PeriodicalIF":0.0,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143172486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Technical Innovations and Patient Support in Radiation Oncology
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
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
×
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
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
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