Technical Innovations and Patient Support in Radiation Oncology最新文献

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Novel breath-hold liver target stereotactic ablative radiotherapy using the intrafraction diaphragm registration of kilovoltage projection streaming image with digitally reconstructed radiography of the planning computed tomography 新型屏气肝靶立体定向消融放疗,利用千伏投影流图像的抽束内隔膜配准与规划计算机断层摄影的数字重建
Technical Innovations and Patient Support in Radiation Oncology Pub Date : 2023-09-01 DOI: 10.1016/j.tipsro.2023.100217
Atsuto Katano , Yuki Nozawa , Masanari Minamitani , Hideomi Yamashita , Keiichi Nakagawa
{"title":"Novel breath-hold liver target stereotactic ablative radiotherapy using the intrafraction diaphragm registration of kilovoltage projection streaming image with digitally reconstructed radiography of the planning computed tomography","authors":"Atsuto Katano ,&nbsp;Yuki Nozawa ,&nbsp;Masanari Minamitani ,&nbsp;Hideomi Yamashita ,&nbsp;Keiichi Nakagawa","doi":"10.1016/j.tipsro.2023.100217","DOIUrl":"10.1016/j.tipsro.2023.100217","url":null,"abstract":"<div><p>Stereotactic ablative radiotherapy (SABR) is an emerging treatment option for patients with primary or metastatic liver tumors, particularly for those who are not eligible for surgery or transplantation. SABR is a high-precision radiation therapy that delivers a high dose of radiation to the tumor while minimizing the dose to the surrounding healthy tissues. However, the accurate targeting of the tumor is a crucial aspect of liver SABR, which requires real-time imaging and tracking of the liver and tumor motion during treatment. One of the motion management strategies for liver SABR is the repeated breath-hold technique, which involves the patient holding their breath multiple times during treatment delivery to reduce the movement of the liver and other organs due to breathing. This technique helps to improve the accuracy of the treatment and reduce the radiation dose to the healthy liver.</p><p>The current study proposes a novel approach for multiple breath-hold volumetric modulated arc therapy (VMAT) stereotactic ablative radiotherapy for liver tumors, which uses the intrafraction diaphragm registration in real time to improve the accuracy and precision of the treatment. The proposed approach is based on real-time comparison of the diaphragmatic surface location between the digitally reconstructed radiography (DRR) and intrafraction kilovoltage projection streaming images (kV-PSI) having the same beam angles. The image cross-correlation between the DRR and the intrafraction kV-PSI provides a measure of the similarity between the two images and can be used to identify and track the diaphragm position during VMAT delivery. The proposed methodology consists of several steps, including planning CT and treatment planning, reference image reconstruction, and patient positioning and immobilization. The proposed approach has the potential to improve the accuracy and precision of liver cancer VMAT SABR, thereby increasing the efficacy of the treatment and reducing the risk of radiation exposure to surrounding healthy tissues.</p></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/07/24/main.PMC10336676.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10180924","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: 1
Understanding the impact of radiotherapy related insufficiency fractures and exploring satisfaction with two existing patient reported outcome measures: A qualitative interview study 了解放疗相关不全骨折的影响并探索两种现有患者报告的结果测量的满意度:一项定性访谈研究
Technical Innovations and Patient Support in Radiation Oncology Pub Date : 2023-09-01 DOI: 10.1016/j.tipsro.2023.100210
Sally Taylor , Prabhav Chaudhary , Fiona McCartin , Claire Higham
{"title":"Understanding the impact of radiotherapy related insufficiency fractures and exploring satisfaction with two existing patient reported outcome measures: A qualitative interview study","authors":"Sally Taylor ,&nbsp;Prabhav Chaudhary ,&nbsp;Fiona McCartin ,&nbsp;Claire Higham","doi":"10.1016/j.tipsro.2023.100210","DOIUrl":"10.1016/j.tipsro.2023.100210","url":null,"abstract":"<div><h3>Introduction</h3><p>Radiotherapy related insufficiency fractures (RRIFs) occur in approximately 10–15% of cancer survivors who underwent pelvic radiotherapy. Little research has been conducted to explore the impact of RRIFs on quality of life (QOL). Patient reported outcome measures (PROMs) are often used in oncology to measure side effects and QOL. The study aims to understand the influence of RRIF on QOL and to discover whether available PROMs address their needs.</p></div><div><h3>Materials and methods</h3><p>Twenty-five patients randomly selected from a Tertiary Oncology Centre bone health clinic database of patients referred with RRIFs were approached. Interested patients were sent two existing PROMs and a patient information sheet. Eleven patients agreed to take part in a semi-structured interview to explore their experiences and their opinion on the existing PROMs. Telephone interviews were conducted. Interviews were audio recorded, transcribed, and analysed using thematic analysis.</p></div><div><h3>Results</h3><p>Four themes were identified: 1) Route to diagnosis, 2) management of RRIFs and 3) resilience all had an impact on 4) QOL. Additionally, participants discussed PROMs and how they might be integrated into clinical practice. The data highlights the wide ranging QOL impacts experienced and highlights potential areas for improvement in terms of diagnosis and management pathways.</p></div><div><h3>Discussion</h3><p>The impact of RRIFs on QOL is considerable. Participants highlighted key areas for improvement including the provision of more information, more access to support and improved management pathways. Participants also highlighted the potential benefits of PROMs but suggested existing measures could be improved.</p></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/91/3d/main.PMC10209447.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9916432","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
Changes in satisfaction and anxiety about radiotherapy for pediatric cancer by two-step audio-visual instruction 两步视听教学对儿童肿瘤放疗满意度和焦虑的影响
Technical Innovations and Patient Support in Radiation Oncology Pub Date : 2023-09-01 DOI: 10.1016/j.tipsro.2023.100214
Hiroshi Fuji , Tomoyasu Fujibuchi , Hideyuki Tanaka , Yuu Ogawa , Chihiro Noda , Maoko Hayakawa , Kazuaki Nakamura , Kyoko Tanaka
{"title":"Changes in satisfaction and anxiety about radiotherapy for pediatric cancer by two-step audio-visual instruction","authors":"Hiroshi Fuji ,&nbsp;Tomoyasu Fujibuchi ,&nbsp;Hideyuki Tanaka ,&nbsp;Yuu Ogawa ,&nbsp;Chihiro Noda ,&nbsp;Maoko Hayakawa ,&nbsp;Kazuaki Nakamura ,&nbsp;Kyoko Tanaka","doi":"10.1016/j.tipsro.2023.100214","DOIUrl":"10.1016/j.tipsro.2023.100214","url":null,"abstract":"<div><h3>Objectives</h3><p>Although radiotherapy is an essential component of pediatric cancer treatment, inadequate radiotherapy information for childhood cancer and unusual treatment situations can negatively affect parental perceptions and emotions. This study aims to investigate the effect of two-step audio-visual instruction system effects introduced by our institution on parent satisfaction and anxiety when initiating radiotherapy.</p></div><div><h3>Methods</h3><p>The two-step audio-visual instruction system comprised instructive animation using patient avatars and a live video system. The live video system has a 55-inch-wide monitor, and a no-latency sound module. Parents in the radiotherapy division can view the patient in the treatment room through the live video system. This prospective study compared satisfaction and anxiety about radiotherapy introduction before and after two-step audio-visual instruction. We enrolled 20 parents whose child underwent radiotherapy, and they completed a set of questionnaires—Client Satisfaction Questionnaire, State-Trait Anxiety Inventory, and original questionnaires about radiotherapy.</p></div><div><h3>Results</h3><p>Satisfaction scores improved significantly after two-step audio visual instruction (25.5 ± 3.4) compared with those before the instruction (27.7 ± 3.1) (p = &lt;0.01). Anxiety scores also decreased significantly after the instruction (50 ± 9) compared with those before the instruction (54 ± 11) (p = 0.004). However, anxiety-related personality trait scores did not change drastically before and after viewing (48 ± 8.5 vs. 49 ± 7.5) (p = 0.419).</p></div><div><h3>Conclusion</h3><p>This single-arm prospective study indicates that two-step audio-visual instruction for radiotherapy is effective in improving parents' anxiety about radiotherapy introductions. However, large-scale and comparative studies are warranted to generalize the benefit of two-step audio visual instruction.</p></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10371834/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9919477","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: 1
Investigating the feasibility of using Ethos generated treatment plans for head and neck cancer patients 研究使用Ethos生成的癌症头颈部患者治疗计划的可行性。
Technical Innovations and Patient Support in Radiation Oncology Pub Date : 2023-09-01 DOI: 10.1016/j.tipsro.2023.100216
Adam El-qmache, John McLellan
{"title":"Investigating the feasibility of using Ethos generated treatment plans for head and neck cancer patients","authors":"Adam El-qmache,&nbsp;John McLellan","doi":"10.1016/j.tipsro.2023.100216","DOIUrl":"10.1016/j.tipsro.2023.100216","url":null,"abstract":"<div><p>The Varian Ethos treatment platform is designed to automatically create complex RT treatment plans, reducing both workload and operator variability in plan quality. The aim of this study is to evaluate the quality of Ethos-generated head and neck (H&amp;N) treatment plans.</p><p>Ethos plans were created for ten previous H&amp;N patients and these were compared with the original clinical plans generated in Eclipse. Ethos automatically creates several plans with different field arrangements for each patient. All plans were compared quantitatively using: dose-volume metrics; dose conformity; dose heterogeneity and monitor units (MU). In addition, two H&amp;N Oncologists assessed the clinical acceptability of the Ethos plans.</p><p>Consultant 1 judged there to be at least three clinically acceptable Ethos plans for 9 out of 10 patients reviewed. Consultant 2 approved of at least two Ethos plans for 5 out of 5 patients reviewed. The Ethos plans’ average dose metrics were comparable to the clinical plans. The average plan MU was similar for Eclipse and Ethos VMAT plans. The average plan MU for Ethos IMRT plans was larger with respect to all VMAT plans.</p><p>The Ethos Treatment Planning system is capable of automatically creating good quality treatment plans for a range of H&amp;N cancer patients.</p></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c1/d6/main.PMC10511846.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41168704","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
Practice-based training strategy for therapist-driven prostate MR-Linac adaptive radiotherapy 治疗师驱动的前列腺MR-Linac自适应放疗的实践培训策略
Technical Innovations and Patient Support in Radiation Oncology Pub Date : 2023-09-01 DOI: 10.1016/j.tipsro.2023.100212
Winnie Li , Jerusha Padayachee , Inmaculada Navarro , Jeff Winter , Jennifer Dang , Srinivas Raman , Vickie Kong , Alejandro Berlin , Charles Catton , Rachel Glicksman , Victor Malkov , Andrew McPartlin , Kaushik Kataki , Patricia Lindsay , Peter Chung
{"title":"Practice-based training strategy for therapist-driven prostate MR-Linac adaptive radiotherapy","authors":"Winnie Li ,&nbsp;Jerusha Padayachee ,&nbsp;Inmaculada Navarro ,&nbsp;Jeff Winter ,&nbsp;Jennifer Dang ,&nbsp;Srinivas Raman ,&nbsp;Vickie Kong ,&nbsp;Alejandro Berlin ,&nbsp;Charles Catton ,&nbsp;Rachel Glicksman ,&nbsp;Victor Malkov ,&nbsp;Andrew McPartlin ,&nbsp;Kaushik Kataki ,&nbsp;Patricia Lindsay ,&nbsp;Peter Chung","doi":"10.1016/j.tipsro.2023.100212","DOIUrl":"10.1016/j.tipsro.2023.100212","url":null,"abstract":"<div><h3>Purpose</h3><p>To develop a practice-based training strategy to transition from radiation oncologist to therapist-driven prostate MR-Linac adaptive radiotherapy.</p></div><div><h3>Methods and materials</h3><p>In phase 1, 7 therapists independently contoured the prostate and organs-at-risk on T2-weighted MR images from 11 previously treated MR-Linac prostate patients. Contours were evaluated quantitatively (i.e. Dice similarity coefficient [DSC] calculated against oncologist generated online contours) and qualitatively (i.e. oncologist using a 5-point Likert scale; a score ≥ 4 was deemed a pass, a 90% pass rate was required to proceed to the next phase). Phase 2 consisted of supervised online workflow with therapists required no intervention from the oncologist on 10 total cases to advance. Phase 3 involved unsupervised therapist-driven workflow, with offline support from oncologists prior to the next fraction.</p></div><div><h3>Results</h3><p>In phase 1, the mean DSC was 0.92 (range 0.85–0.97), and mean Likert score was 3.7 for the prostate. Five therapists did not attain a pass rate (3–5 cases with prostate contour score &lt; 4), underwent follow-up one-on-one review, and performed contours on a further training set (n = 5). Each participant completed a median of 12 (range 10–13) cases in phase 2; of 82 cases, minor direction were required from the oncologist on 5 regarding target contouring. Radiation oncologists reviewed 179 treatment fractions in phase 3, and deemed 5 cases acceptable but with suggestions for next fraction; all other cases were accepted without suggestions.</p></div><div><h3>Conclusion</h3><p>A training stepwise program was developed and successfully implemented to enable a therapist-driven workflow for online prostate MR-Linac adaptive radiotherapy.</p></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/82/21/main.PMC10230256.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9939984","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
Synchronization of light flash with the irradiation pulse in proton beam therapy: A case report 质子束治疗中闪光与照射脉冲同步1例
Technical Innovations and Patient Support in Radiation Oncology Pub Date : 2023-09-01 DOI: 10.1016/j.tipsro.2023.100218
Takashi Saito , Masashi Mizumoto , Yoshiko Oshiro , Toshio Miyamoto , Satoshi Kamizawa , Masatoshi Nakamura , Toshiki Ishida , Hirokazu Makishima , Haruko Numajiri , Kei Nakai , Takeji Sakae , Hideyuki Sakurai
{"title":"Synchronization of light flash with the irradiation pulse in proton beam therapy: A case report","authors":"Takashi Saito ,&nbsp;Masashi Mizumoto ,&nbsp;Yoshiko Oshiro ,&nbsp;Toshio Miyamoto ,&nbsp;Satoshi Kamizawa ,&nbsp;Masatoshi Nakamura ,&nbsp;Toshiki Ishida ,&nbsp;Hirokazu Makishima ,&nbsp;Haruko Numajiri ,&nbsp;Kei Nakai ,&nbsp;Takeji Sakae ,&nbsp;Hideyuki Sakurai","doi":"10.1016/j.tipsro.2023.100218","DOIUrl":"10.1016/j.tipsro.2023.100218","url":null,"abstract":"<div><p>The correlation between sensory light flash and proton beam delivery was evaluated by measuring the timing of pulse beam delivery and light flash sensing using an event recorder in an 83-year-old patient receiving proton beam therapy (PBT) for nasopharyngeal adenoid cystic carcinoma. The treatment dose was 65 Gy (RBE) in 26 fractions with 2 ports, and both beams included the visual pathway (retina, optic nerve, chiasma). Measurements were obtained in 13 of the 26 fractions. The patient sensed a light flash in all 13 fractions and pressed the recorder button for 426 of the 430 pulsed beam deliveries, giving a sensing rate of 99.1%. The median duration of button-pressing of 0.3 s was almost the same as that of the beam pulse of 0.2 s, with a reaction time lag of 0.35 s. These results suggest a consistency between light flash during PBT and the timing of irradiation.</p></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10362298/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9862028","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
Are liver contour and bone fusion comparable to fiducials for IGRT in liver SBRT? 肝脏轮廓和骨融合是否与肝脏SBRT中IGRT的基准相当?
Technical Innovations and Patient Support in Radiation Oncology Pub Date : 2023-09-01 DOI: 10.1016/j.tipsro.2023.100215
C. de la Pinta , D. Sevillano , R. Colmenares , S. Barrio , A. Olavarria , A. Palomera , R. Romera , J. Cobos , A. Muriel , E. Fernández , LC. Perna , A. Albillos , S. Sancho
{"title":"Are liver contour and bone fusion comparable to fiducials for IGRT in liver SBRT?","authors":"C. de la Pinta ,&nbsp;D. Sevillano ,&nbsp;R. Colmenares ,&nbsp;S. Barrio ,&nbsp;A. Olavarria ,&nbsp;A. Palomera ,&nbsp;R. Romera ,&nbsp;J. Cobos ,&nbsp;A. Muriel ,&nbsp;E. Fernández ,&nbsp;LC. Perna ,&nbsp;A. Albillos ,&nbsp;S. Sancho","doi":"10.1016/j.tipsro.2023.100215","DOIUrl":"10.1016/j.tipsro.2023.100215","url":null,"abstract":"<div><h3>Introduction</h3><p>Liver stereotactic body radiotherapy (SBRT) is increasingly being used to treat tumours. The purpose of this study was to compare the differences in patient positioning when using implanted fiducials as surrogates compared to alternative methods based on liver contour or bone registration.</p></div><div><h3>Material and methods</h3><p>Eighteen patients treated with SBRT who underwent a fiducial placement procedure were included. Fiducial guidance was our gold standard to guide treatment in this study. After recording the displacements, when fusing the planning CT and CBCT performed in the treatment unit using fiducials, liver contour and bone reference, the differences between fiducials and liver contour and bone reference were calculated. Data from 88 CBCT were analyzed. The correlation between the displacements found with fiducials and those performed based on the liver contour and the nearest bone structure as references was determined. The mean, median, variance, range and standard deviation of the displacements with each of the fusion methods were obtained. μ, Ʃ, and σ values and margins were obtained.</p></div><div><h3>Results</h3><p>Lateral displacements of less than 3 mm with respect to the gold standard in 92% vs. 62.5% of cases using liver contour and bone references, respectively, with 93.2% vs. 65.9% in the AP axis and SI movement in 69.3% vs. 51.1%. The errors μ, σ and Ʃ of the fusions with hepatic contour and bone reference in SI were 0.26 mm, 4 mm and 3 mm, and 0.8 mm, 5 mm and 3 mm respectively.</p></div><div><h3>Conclusion</h3><p>Our study showed that displacements were smaller with the use of hepatic contour compared to bone reference and comparable to those obtained with the use of fiducials in the lateral, AP and SI motion axes. This would justify that hepatic contouring can be a guide in the treatment of patients in the absence of fiducials.</p></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/fe/bf/main.PMC10511841.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41178668","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
Community socioeconomic status and rural/racial disparities in HPV−/+ head and neck cancer HPV−/+头颈癌的社区社会经济地位和农村/种族差异
Technical Innovations and Patient Support in Radiation Oncology Pub Date : 2023-06-01 DOI: 10.1016/j.tipsro.2023.100205
Jason Semprini , Jessica C. Williams
{"title":"Community socioeconomic status and rural/racial disparities in HPV−/+ head and neck cancer","authors":"Jason Semprini ,&nbsp;Jessica C. Williams","doi":"10.1016/j.tipsro.2023.100205","DOIUrl":"10.1016/j.tipsro.2023.100205","url":null,"abstract":"<div><h3>Background</h3><p>Head and Neck Cancer (HNC) is a major cause of cancer morbidity and mortality in the United States, but the burden is not evenly distributed. Rural and racial disparities are obvious across the HNC continuum. Most HNC disparities research have emphasized individual factors perpetuating rural and racial disparities, ignoring the role of community-level factors.</p></div><div><h3>Methods</h3><p>We analyzed data from the Surveillance Epidemiology and End Results (SEER) program’s “Specialized HNC-Human Papillomavirus (HPV) Census-Tract SES” datafile (2010–2016). In addition to cancer patient characteristics, this data includes a socioeconomic status (SES) quintile based on the patient’s census-tract. Our outcome variables included whether the HNC patient 1) was diagnosed at a distant stage, 2) received initial treatment two or more months after diagnosis, 3) received radiation therapy, 4) survived two years after diagnosis. We tested for differences across SES quintiles, in the full sample and then within rural/racial categories. We then tested for differences between each rural/racial category conditional on SES quintile.</p></div><div><h3>Results</h3><p>For both HPV(−) and HPV + HNCs, patients in higher SES census-tracts have 8–10% lower rates of distant stage diagnoses and delayed treatment initiation, and 12.0–14.5% higher survival rates than patients in lower SES census-tracts. Radiation treatment only varied across SES quintiles in HPV + HNC patients. We find little evidence of rural–urban differences within each socioeconomic quintile. However, within lower SES quintiles, we found significant racial disparities in delayed detection and treatment. These differences were largest in the lowest SES quintile, as non-Hispanic Black patients reported 10–11% higher rates of delayed detection and treatment initiation than non-Hispanic White patients.</p></div><div><h3>Conclusions</h3><p>Our research illustrates the value and constraints in leveraging community-level factors in health disparities research that can ultimately assist in designing effective policies that address and achieve rural and racial cancer equity.</p></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c2/86/main.PMC10038787.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9222755","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
Comparison of the output of a deep learning segmentation model for locoregional breast cancer radiotherapy trained on 2 different datasets 局部区域乳腺癌放疗深度学习分割模型在2个不同数据集上的输出比较
Technical Innovations and Patient Support in Radiation Oncology Pub Date : 2023-06-01 DOI: 10.1016/j.tipsro.2023.100209
Nienke Bakx , Maurice van der Sangen , Jacqueline Theuws , Hanneke Bluemink , Coen Hurkmans
{"title":"Comparison of the output of a deep learning segmentation model for locoregional breast cancer radiotherapy trained on 2 different datasets","authors":"Nienke Bakx ,&nbsp;Maurice van der Sangen ,&nbsp;Jacqueline Theuws ,&nbsp;Hanneke Bluemink ,&nbsp;Coen Hurkmans","doi":"10.1016/j.tipsro.2023.100209","DOIUrl":"10.1016/j.tipsro.2023.100209","url":null,"abstract":"<div><h3>Introduction</h3><p>The development of deep learning (DL) models for auto-segmentation is increasing and more models become commercially available. Mostly, commercial models are trained on external data. To study the effect of using a model trained on external data, compared to the same model trained on in-house collected data, the performance of these two DL models was evaluated.</p></div><div><h3>Methods</h3><p>The evaluation was performed using in-house collected data of 30 breast cancer patients. Quantitative analysis was performed using Dice similarity coefficient (DSC), surface DSC (sDSC) and 95th percentile of Hausdorff Distance (95% HD). These values were compared with previously reported inter-observer variations (IOV).</p></div><div><h3>Results</h3><p>For a number of structures, statistically significant differences were found between the two models. For organs at risk, mean values for DSC ranged from 0.63 to 0.98 and 0.71 to 0.96 for the in-house and external model, respectively. For target volumes, mean DSC values of 0.57 to 0.94 and 0.33 to 0.92 were found. The difference of 95% HD values ranged 0.08 to 3.23 mm between the two models, except for CTVn4 with 9.95 mm. For the external model, both DSC and 95% HD are outside the range of IOV for CTVn4, whereas this is the case for the DSC found for the thyroid of the in-house model.</p></div><div><h3>Conclusions</h3><p>Statistically significant differences were found between both models, which were mostly within published inter-observer variations, showing clinical usefulness of both models. Our findings could encourage discussion and revision of existing guidelines, to further decrease inter-observer, but also inter-institute variability.</p></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/cd/11/main.PMC10199413.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9503221","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: 1
Validation testing of a language translation device for suitability in assisting Australian radiation therapists to communicate with Mandarin-speaking patients 一种语言翻译设备的验证测试,以帮助澳大利亚放射治疗师与讲普通话的患者进行沟通
Technical Innovations and Patient Support in Radiation Oncology Pub Date : 2023-06-01 DOI: 10.1016/j.tipsro.2023.100207
Darren Hunter , Richard Oates , Nigel Anderson , David Kok , Daniel Sapkaroski , Caroline Wright
{"title":"Validation testing of a language translation device for suitability in assisting Australian radiation therapists to communicate with Mandarin-speaking patients","authors":"Darren Hunter ,&nbsp;Richard Oates ,&nbsp;Nigel Anderson ,&nbsp;David Kok ,&nbsp;Daniel Sapkaroski ,&nbsp;Caroline Wright","doi":"10.1016/j.tipsro.2023.100207","DOIUrl":"10.1016/j.tipsro.2023.100207","url":null,"abstract":"<div><h3>Introduction</h3><p>Clear, timely communication between practitioners and patients is key in ensuring equitable access to health services and optimal care. Australia’s linguistically diverse population adds complexity to healthcare provision. This paper describes a validation study to assess clinical suitability of a language translation device, intended for use with Mandarin speaking patients undergoing radiotherapy (RT).</p></div><div><h3>Materials and methods</h3><p>After a comprehensive device selection process, common phrases used in RT practice were curated within one clinical center and translated by interpreters. Phrases were categorized by conversation type and readability (according to Flesch-Kincaid and FORCAST scores). Validation of device performance was undertaken by purposely selected radiation therapists (RTTs) who tested and evaluated the device using a survey with 5-point Likert scale responses. Statistical analysis was undertaken on Excel using Pearson’s chi-square, z-test, interrater reliability/agreement and linear regression analyses.</p></div><div><h3>Results</h3><p>Six RTTs and two interpreters volunteered to participate in this study. 188 common phrases were spoken verbatim into the device and scored on a 5-point Likert scale, yielding an overall output accuracy of 66%. A z-test confirmed significance against prior comparative research and Linear regression analysis observed improved output between consecutive participants. 62.7% of interpreter scores were identical; a further 29.1% constituted a single point scoring variation. Poorer outcomes were observed with colloquial English and lower readability.</p></div><div><h3>Conclusions</h3><p>This study found the device produced suitable translation accuracy and identified language styles that should be avoided with use. Further research could consider clinical application, expanded languages and/or health disciplines, and development of a national RTT phrase list.</p></div>","PeriodicalId":36328,"journal":{"name":"Technical Innovations and Patient Support in Radiation Oncology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/03/0a/main.PMC10232656.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9950906","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
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