901
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Tsang Y. Advanced practice in radiotherapy: How to move to the next level? Tech Innov Patient Support Radiat Oncol 2021; 17:57-58. [PMID: 34007907 PMCID: PMC8111034 DOI: 10.1016/j.tipsro.2021.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- Yat Tsang
- Radiotherapy Department, Mount Vernon Cancer Centre, Northwood, Middlesex, United Kingdom
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902
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Vanneste BG, Van Limbergen EJ, Marcelissen T, Reynders K, Melenhorst J, van Roermund JG, Lutgens L. Is prostate cancer radiotherapy using implantable rectum spacers safe and effective in inflammatory bowel disease patients? Clin Transl Radiat Oncol 2021; 27:121-125. [PMID: 33604459 PMCID: PMC7875819 DOI: 10.1016/j.ctro.2021.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/11/2021] [Accepted: 01/13/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Prostate cancer radiotherapy (RT) in patients with (active) inflammatory bowel disease (IBD) remains controversial. We hypothesized that RT in combination with a biodegradable prostate-rectum spacer balloon implantation, might be a safe treatment approach with acceptable toxicities for these high risk for rectal toxicity patients. MATERIALS AND METHODS We report on a small prospective mono-centric series of 8 patients with all-risk prostate cancer with the comorbidity of an IBD. Four patients had Crohn's disease and 4 patients had ulcerative colitis. One out of four had an active status of IBD. All patients were intended to be treated with curative high-dose RT: 5 patients were treated with external beam RT (70 Gray (Gy) in 28 fractions), and 3 patients were treated with 125I-implant (145 Gy). Toxicities were scored according to the CTCAE v4.03: acute side effects occur up to 3 months after RT, and late side effects start after 3 months. RESULTS Median follow-up was 13 months (range: 3-42 months). Only one acute grade 2 gastro-intestinal (GI) toxicity was observed: an increased diarrhea (4-6 above baseline) during RT, which resolved completely 6 weeks after treatment. No late grade 3 or more GI toxicity was reported, and no acute and late grade ≥2 genitourinary toxicity events were observed. CONCLUSION Prostate cancer patients with IBD are a challenge to treat with RT. Our results suggest that RT in combination with a balloon implant in selective patients with (active) IBD may be promising, however additional validation is needed.
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Affiliation(s)
- Ben G.L. Vanneste
- Department of Radiation Oncology (MAASTRO), GROW – School for Oncology and Developmental Biology, Maastricht University Medical Center+, Maastricht, the Netherlands
| | - Evert J. Van Limbergen
- Department of Radiation Oncology (MAASTRO), GROW – School for Oncology and Developmental Biology, Maastricht University Medical Center+, Maastricht, the Netherlands
| | - Tom Marcelissen
- Department of Urology, Maastricht University Medical Center+, Maastricht, the Netherlands
| | - Kobe Reynders
- Department of Radiation Oncology (MAASTRO), GROW – School for Oncology and Developmental Biology, Maastricht University Medical Center+, Maastricht, the Netherlands
| | - Jarno Melenhorst
- Department of Surgery, Maastricht University Medical Center+, Maastricht, the Netherlands
| | - Joep G.H. van Roermund
- Department of Urology, Maastricht University Medical Center+, Maastricht, the Netherlands
| | - Ludy Lutgens
- Department of Radiation Oncology (MAASTRO), GROW – School for Oncology and Developmental Biology, Maastricht University Medical Center+, Maastricht, the Netherlands
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903
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Wong SM, Sin S, Lim L, Nurul Tassha B, Lin J, Melissa K, Koh W, Ho F, Quah DS, Sommat K, Tuan JK, Wong F, Ng W, Yeo RM, Soong Y, Wang ML. The implementation of an advanced practice radiation therapy (APRT) program in Singapore. Tech Innov Patient Support Radiat Oncol 2021; 17:63-70. [PMID: 34007909 PMCID: PMC8111035 DOI: 10.1016/j.tipsro.2021.02.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/01/2021] [Accepted: 02/01/2021] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND The exploration of Advanced Practiced Radiation Therapists (APRTs) development in Singapore started in 2011. This study aims to provide an overview of the development of the APRT roles, and to discuss the approaches used to develop and implement these roles in Singapore. MATERIALS AND METHODS A mixed methods approach was used in the development of the APRT program. A literature review was carried out to define the APRT scope of practice and core responsibilities. A competency and assessment framework were setup to assess the core competency areas. With this framework, a structured 1-year residency training program was developed. RESULTS The scope of practice and core responsibilities of APRTs were defined with five proposed advanced practice profiles being successfully validated. A competency framework was set up to assess the core competency domains: clinical, technical and professional competencies, research, education and leadership. A 4-point scoring system was developed for the competency assessment based on two criteria; the frequency with which RTTs would demonstrate competency, and the ability of performing the task competently. A 1-year structured APRT residency program was developed and implemented. The programme consisted of structured lectures, and clinical practice-based modules where APRT residents receive structured mentoring under a mentorship program. CONCLUSION The APRT program in Singapore employed an evidence-based implementation process that tested the feasibility of a new practice model. Multidisciplinary involvements, mentorship and clinical training were important factors for the success of the APRT program.
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Affiliation(s)
- Sharon M.M. Wong
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
- College of Allied Health-SingHealth Academy, Singapore
- Singapore Institute of Technology, Singapore
| | - S.Y. Sin
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
| | - L.H. Lim
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
| | | | - Jeannie Lin
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
| | - K. Melissa
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
| | - W.Y. Koh
- Department of Radiation Oncology, National University Cancer Institute, Singapore
| | - Francis Ho
- Department of Radiation Oncology, National University Cancer Institute, Singapore
| | - Daniel S.C. Quah
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
- Duke-National University of Singapore, Graduate Medical School, Singapore
| | - Kiatissa Sommat
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
- Duke-National University of Singapore, Graduate Medical School, Singapore
| | - Jeffrey K.L. Tuan
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
- Duke-National University of Singapore, Graduate Medical School, Singapore
| | - F.Y. Wong
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
- Duke-National University of Singapore, Graduate Medical School, Singapore
| | - W.L. Ng
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
- Duke-National University of Singapore, Graduate Medical School, Singapore
| | - Richard M.C. Yeo
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
- Duke-National University of Singapore, Graduate Medical School, Singapore
| | - Y.L. Soong
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
- Duke-National University of Singapore, Graduate Medical School, Singapore
| | - Michael L.C. Wang
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore
- Duke-National University of Singapore, Graduate Medical School, Singapore
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904
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Chamunyonga C, Rutledge P, Caldwell PJ, Burbery J. The implementation of MOSAIQ-based image-guided radiation therapy image matching within radiation therapy education. J Med Radiat Sci 2021; 68:86-90. [PMID: 32979303 PMCID: PMC7890919 DOI: 10.1002/jmrs.434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 08/27/2020] [Accepted: 08/29/2020] [Indexed: 11/17/2022] Open
Abstract
Image-guided radiation therapy (IGRT) technologies are routinely used by radiation therapists (RTs) in clinical departments. However, there is limited literature on the acquisition and assessment of IGRT image-matching competencies in undergraduate educational environments. This commentary paper aims to share the authors' experiences in the development of teaching IGRT and image-matching concepts in an undergraduate radiation therapy programme. It outlines how MOSAIQ oncology information systems (OIS) have enabled the university to embed hands-on IGRT image matching on a range of clinical cases. The hands-on exposure to case-based planar and volumetric kilovoltage (kV) image matching has resulted in improved teaching and better preparation of students for clinical IGRT encounters. Students are likely to benefit from critical image assessment and decision-making as well as the improved engagement in teaching and learning.
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Affiliation(s)
- Crispen Chamunyonga
- School of Clinical SciencesQueensland University of TechnologyBrisbaneQueenslandAustralia
| | - Peta Rutledge
- School of Clinical SciencesQueensland University of TechnologyBrisbaneQueenslandAustralia
| | - Peter J. Caldwell
- School of Clinical SciencesQueensland University of TechnologyBrisbaneQueenslandAustralia
| | - Julie Burbery
- School of Clinical SciencesQueensland University of TechnologyBrisbaneQueenslandAustralia
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905
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Khine R, Stewart-Lord A. An examination of Advanced Clinical Practice: Qualitative insights from therapeutic radiography advanced and consultant practitioners based in England. Tech Innov Patient Support Radiat Oncol 2021; 17:97-101. [PMID: 34007914 PMCID: PMC8110936 DOI: 10.1016/j.tipsro.2020.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION Therapeutic radiographers play a vital and changing role in the delivery of radiotherapy services treating patients with cancer. Advanced Practitioners (AP) and Consultant Practitioners (CP) in radiotherapy have developed advanced clinical skills and specialisms, enhancing the ability of the profession to offer a greater depth of cancer services and ease pressure elsewhere in the system.The aim of this study was to define the opportunity and potential for Advanced Clinical Practice (ACP) roles in oncology services. Specific objectives were to explore local profiles, role development and opportunities for standardisation of ACPs in therapeutic radiography and to determine resource requirements to roll out and ensure continuation of the existing and new roles. MATERIAL AND METHODS The research was addressed through a qualitative study design using focus groups. Convenience sampling was used to recruit therapeutic radiography advanced and consultant practitioners (N = 36) from the respective radiotherapy departments in England to participate in regional focus groups. Four regional areas were identified for inclusion. Data generated was analysed thematically. RESULTS The findings are presented in four themes: ownership of professional identity, desire for standardisation and guidance, drivers of role development and self-directed educational routes. CONCLUSION Key findings from the focus groups indicated the need for standardisation in job descriptions, roles and responsibilities and a key understanding of career progression. The professional identity of the AP is acknowledged by independent, autonomous working; however, this can only be facilitated if the correct training is undertaken and the necessary support structures are in place to enable career progression. Challenges associated with role development are 1) lack of career and pathway guidance, 2) lack of clear educational routes, 3) lack of standardised roles.
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Affiliation(s)
- R.N.M. Khine
- School of Health Sciences, City, University of London, UK
| | - A. Stewart-Lord
- School of Health and Social Care, London South Bank University, UK
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906
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Brown E, Muscat E, O’Connor P, Liu H, Lee Y, Pryor D. Intrafraction cone beam computed tomography verification of breath hold during liver stereotactic radiation therapy. J Med Radiat Sci 2021; 68:52-59. [PMID: 33025723 PMCID: PMC7890922 DOI: 10.1002/jmrs.441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/16/2020] [Accepted: 09/17/2020] [Indexed: 01/02/2023] Open
Abstract
INTRODUCTION Intrafraction imaging is an Elekta feature that enables cone beam computed tomography (CBCT) acquisition simultaneously with treatment arc delivery. It has facilitated the introduction of breath-hold (BH) gated stereotactic body radiation therapy (SBRT) by enabling visualisation of tumour and organs at risk during treatment. The aims of this study were to assess BH reproducibility and use intrafraction CBCT (IF-CBCT) to quantify any variation in diaphragm position (diaphragmatic feathering) during the multiple BHs performed during each arc. METHODS IF-CBCTs for consecutive liver SBRT patients where BH was achieved using the Elekta Active Breathing Control (ABC) system were retrospectively evaluated. Average intrafraction couch shifts for deep-inspiration BH (DIBH) or end-expiration BH (EEBH) were recorded as an indication of reproducibility. Diaphragmatic feathering was quantified by measuring the difference between the most superior and inferior visible edges of the diaphragm on IF-CBCTs. RESULTS A total of 212 images from 30 patients were reviewed. Twenty-two (73.3%) patients were treated in EEBH. The mean intrafraction shift was similar between DIBH and EEBH groups with the largest mean shift of 0.22cm occurring in the superior-inferior direction. Mean diaphragmatic feathering was similar between the DIBH and EEBH groups, 0.09cm (0-0.44cm) and 0.14cm (0-1.89cm) respectively. A higher percentage of EEBH patients demonstrated no diaphragmatic feathering throughout treatment compared with DIBH patients (31.8% vs 25%). CONCLUSION The results of this study indicate that BH is reproducible in both DIBH and EEBH for liver SBRT treatment using the ABC system. Appropriate patient selection and BH coaching prior to CT simulation are critical to its success.
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Affiliation(s)
- Elizabeth Brown
- Radiation OncologyPrincess Alexandra HospitalBrisbaneQueenslandAustralia
- School of Clinical SciencesQueensland University of TechnologyBrisbaneQueenslandAustralia
| | - Erika Muscat
- Radiation OncologyPrincess Alexandra HospitalBrisbaneQueenslandAustralia
| | - Patrick O’Connor
- Radiation OncologyPrincess Alexandra HospitalBrisbaneQueenslandAustralia
- Radiation Oncology DepartmentSunshine Coast University HospitalAdem Crosby Centre, BirtinyaQueenslandAustralia
| | - Howard Liu
- Radiation OncologyPrincess Alexandra HospitalBrisbaneQueenslandAustralia
- School of MedicineUniversity of QueenslandBrisbaneQueenslandAustralia
| | - Yoo‐Young Lee
- Radiation OncologyPrincess Alexandra HospitalBrisbaneQueenslandAustralia
- School of MedicineUniversity of QueenslandBrisbaneQueenslandAustralia
| | - David Pryor
- Radiation OncologyPrincess Alexandra HospitalBrisbaneQueenslandAustralia
- School of MedicineUniversity of QueenslandBrisbaneQueenslandAustralia
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907
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Shi C, Jiang Y, Wang X, Chen Y. Optimization design of O-ring linear accelerator gantry and mechanical isocenter detection method. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:033308. [PMID: 33820000 DOI: 10.1063/5.0004907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 03/06/2021] [Indexed: 06/12/2023]
Abstract
With the development of the precise radiotherapy, the accuracy of radiotherapy equipment is gradually improved. The gantry, the carrier of the treatment head and various testing devices, is the most important component that determines the accuracy of the entire equipment. In this paper, the layout of the O-ring linear accelerator and the structure of the gantry are optimized to reduce the weight of the gantry by 50% and the moment of inertia by 60%. A mechanical isocenter detection method based on the laser tracker is proposed to conduct a rapid and accurate isocenter measurement for the optimized gantry. The experimental results show that the maximum deformation of the optimized gantry under load is 0.13 mm during rotation and the maximum intersection distance between the gantry axis and the treatment head axis at the isocenter position is 0.21 mm.
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Affiliation(s)
- Chaofeng Shi
- AVIC Beijing Precision Engineering Institute Aircraft Industry, Beijing 100076, China
| | - Yanjie Jiang
- Beijing SunWise Space Technology Ltd., Beijing 100076, China
| | - Xi Wang
- Line of Sight Measuring Technologies (Shanghai) Ltd., Beijing 100076, China
| | - Yifu Chen
- AVIC Beijing Precision Engineering Institute Aircraft Industry, Beijing 100076, China
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908
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Franzese C, Fogliata A, Loi M, Badalamenti M, Franceschini D, Comito T, Cozzi L, Reggiori G, Tomatis S, Scorsetti M. Dosimetric impact of volumetric modulated arc therapy for nasopharyngeal cancer treatment. ACTA ACUST UNITED AC 2021; 26:101-110. [PMID: 34046220 DOI: 10.5603/rpor.a2021.0017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 12/21/2020] [Indexed: 11/25/2022]
Abstract
Background The purpose of the study was to evaluate the toxicity and outcome of nasopharyngeal carcinoma patients treated using 3-dimensional conformal radiotherapy (3DCRT) or volumetric modulated arc therapy (VMAT) technique. Materials and methods 68 patients treated between 2006 and 2018 were retrospectively analysed. Since 2009 patients received 3DCRT with 50/70 Gy to the elective/boost volumes in 35 fractions; from then, VMAT with simultaneous integrated boost (SIB) with 54.45/69.96 Gy in 33, or 54/66 Gy in 30 fractions. Induction chemotherapy was administered in 74% of the patients, concomitant cisplatinum in 87%. Acute and late toxicity data, progression-free survival PSF and overall survival OS, and toxicity correlations with dose metrics were reported. Results With a median follow-up of 64 months, complete remission at the last evaluation was in 68% of the patients, while 28% and 9% had locoregional relapse and distant disease, respectively. The 5- and 10-year progression free survival (PFS) rates were 62.7 ± 6.5% and 53.2 ± 8.7%, respectively. The 5- and 10-year OS rates were 78.9 ± 5.5% and 61.4 ± 9.2%, respectively. At the multivariate Cox analysis TNM stage (p = 0.02) and concomitant chemotherapy (p = 0.01) resulted significant for PFS, concomitant chemotherapy (p = 0.04) for OS.Improvements in acute toxicity were presented for VMAT patients due to its ability to spare OARs. Odds ratio (OR) for acute salivary toxicity, between VMAT and 3DCRT, was 4.67 (p = 0.02). Dosimetrically, salivary toxicity correlated with mean parotid dose (p = 0.05), dysphagia with laryngeal (p = 0.04) and mean oral cavity (p = 0.06) doses, when dose-volume histograms (DVHs) are corrected for fractionation. Conclusion This study is a proof of a significant benefit of the VMAT technique compared with 3DCRT in terms of side effects in nasopharynx patients, and adds dosimetric correlations.
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Affiliation(s)
- Ciro Franzese
- Humanitas Clinical and Research Hospital IRCCS, Radiotherapy Dept, Milan-Rozzano, Italy.,Humanitas University, Biomedical Science Dept, Milan-Rozzano, Italy
| | - Antonella Fogliata
- Humanitas Clinical and Research Hospital IRCCS, Radiotherapy Dept, Milan-Rozzano, Italy
| | - Mauro Loi
- Humanitas Clinical and Research Hospital IRCCS, Radiotherapy Dept, Milan-Rozzano, Italy
| | - Marco Badalamenti
- Humanitas Clinical and Research Hospital IRCCS, Radiotherapy Dept, Milan-Rozzano, Italy
| | - Davide Franceschini
- Humanitas Clinical and Research Hospital IRCCS, Radiotherapy Dept, Milan-Rozzano, Italy
| | - Tiziana Comito
- Humanitas Clinical and Research Hospital IRCCS, Radiotherapy Dept, Milan-Rozzano, Italy
| | - Luca Cozzi
- Humanitas Clinical and Research Hospital IRCCS, Radiotherapy Dept, Milan-Rozzano, Italy.,Humanitas University, Biomedical Science Dept, Milan-Rozzano, Italy
| | - Giacomo Reggiori
- Humanitas Clinical and Research Hospital IRCCS, Radiotherapy Dept, Milan-Rozzano, Italy
| | - Stefano Tomatis
- Humanitas Clinical and Research Hospital IRCCS, Radiotherapy Dept, Milan-Rozzano, Italy
| | - Marta Scorsetti
- Humanitas Clinical and Research Hospital IRCCS, Radiotherapy Dept, Milan-Rozzano, Italy.,Humanitas University, Biomedical Science Dept, Milan-Rozzano, Italy
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909
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Vakaet V, Van Hulle H, Schoepen M, Van Caelenberg E, Van Greveling A, Holvoet J, Monten C, De Baerdemaeker L, De Neve W, Coppens M, Veldeman L. Prolonging deep inspiration breath-hold time to 3 min during radiotherapy, a simple solution. Clin Transl Radiat Oncol 2021; 28:10-16. [PMID: 33732910 PMCID: PMC7941008 DOI: 10.1016/j.ctro.2021.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 01/07/2023] Open
Abstract
A new protocol was developped to prolong deep inspiration breath-holds. Multiple prolonged breath-holds are achievable with minimal side effects. DIBH was prolonged to 3 min using HFNO and hyperventilation in breast cancer patients.
Background and purpose Deep inspiration breath-hold is an established technique to reduce heart dose during breast cancer radiotherapy. However, modern breast cancer radiotherapy techniques with lymph node irradiation often require long beam-on times of up to 5 min. Therefore, the combination with deep inspiration breath-hold (DIBH) becomes challenging. A simple support technique for longer duration deep inspiration breath-hold (L-DIBH), feasible for daily use at the radiotherapy department, is required to maximize heart sparing. Materials and methods At our department, a new protocol for multiple L-DIBH of at least 2 min and 30 s was developed on 32 healthy volunteers and validated on 8 breast cancer patients during radiotherapy treatment, using a pragmatic process of iterative development, including all major stakeholders. Each participant performed 12 L-DIBHs, on 4 different days. Different methods of pre-oxygenation and voluntary hyperventilation were tested, and scored on L-DIBH duration, ease of use, and comfort. Results Based on 384 L-DIBHs from 32 healthy volunteers, voluntary hyperventilation for 3 min whilst receiving high-flow nasal oxygen at 40 L/min was the most promising technique. During validation, the median L-DIBH duration in prone position of 8 breast cancer patients improved from 59 s without support to 3 min and 9 s using the technique (p < 0.001). Conclusion A new and simple L-DIBH protocol was developed feasible for daily use at the radiotherapy center.
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Affiliation(s)
- Vincent Vakaet
- Department of Human Structure and Repair, Ghent University, Belgium.,Department of Radiation Oncology, Ghent University Hospital, Belgium
| | - Hans Van Hulle
- Department of Human Structure and Repair, Ghent University, Belgium
| | - Max Schoepen
- Department of Human Structure and Repair, Ghent University, Belgium.,Department of Industrial Systems Engineering and Product Design, Kortrijk, Belgium
| | | | | | - Jeroen Holvoet
- Department of Radiation Oncology, Ghent University Hospital, Belgium
| | - Chris Monten
- Department of Human Structure and Repair, Ghent University, Belgium.,Department of Radiation Oncology, Ghent University Hospital, Belgium
| | - Luc De Baerdemaeker
- Department of Anesthesia, Ghent University Hospital, Belgium.,Department of Basic and Applied Medical Sciences, Ghent University, Belgium
| | - Wilfried De Neve
- Department of Human Structure and Repair, Ghent University, Belgium.,Department of Radiation Oncology, Ghent University Hospital, Belgium
| | - Marc Coppens
- Department of Anesthesia, Ghent University Hospital, Belgium.,Department of Basic and Applied Medical Sciences, Ghent University, Belgium
| | - Liv Veldeman
- Department of Human Structure and Repair, Ghent University, Belgium.,Department of Radiation Oncology, Ghent University Hospital, Belgium
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910
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Lee J, Liu SH, Chen JCH, Leu YS, Liu CJ, Chen YJ. Progressive muscle loss is an independent predictor for survival in locally advanced oral cavity cancer: A longitudinal study. Radiother Oncol 2021; 158:83-89. [PMID: 33621588 DOI: 10.1016/j.radonc.2021.02.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 02/02/2021] [Accepted: 02/11/2021] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND PURPOSE To investigate the association between progressive muscle loss and survival outcomes of patients with advanced-stage oral squamous cell carcinoma (OSCC) undergoing surgery and adjuvant (chemo)radiotherapy. METHODS We analyzed the computed tomography (CT) scans of 155 patients with stage III-IVB OSCC at baseline, at simulation CT for radiotherapy, and at 3- and 9-months post-treatment. Skeletal muscle index (SMI) was measured using CT at the C3 vertebral level. The predictors of overall survival (OS) and recurrence-free survival (RFS) were evaluated using Cox regression models. RESULTS The median follow-up period was 75.0 months. Fifty-one patients (32.9%) developed recurrence, with the median time from the fourth CT to recurrence being 9.1 months. The SMI progressively decreased from baseline to simulation CT by 1.1% (p = 0.006), to 3 months post-treatment by 5.1% (p < 0.001), and to 9 months post-treatment by 15.6% (p < 0.001) in patients developing recurrence. Patients without recurrence lost SMI at the simulation CT by 0.7% (p = 0.001) and at 3 months post-treatment by 2.1% (p < 0.001); their SMI returned to the baseline level at 9 months post-treatment. SMI changes were weakly correlated with changes in body mass index (BMI) (Spearman ρ, 0.13; p = 0.11). In multivariate analysis, SMI changes (per 5% decrease) were independently associated with significantly worse OS (hazard ratio: 1.88, 95% confidence interval: 1.58-2.23; p < 0.001) and RFS (hazard ratio: 1.89, 95% confidence interval: 1.61-2.20; p < 0.001). CONCLUSION Progressive muscle loss was independently associated with worse survival outcomes in patients with stage III-IVB OSCC. Muscle loss might not be detected by changes in BMI.
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Affiliation(s)
- Jie Lee
- Department of Radiation Oncology, MacKay Memorial Hospital, Taipei, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan.
| | - Shih-Hua Liu
- Department of Radiation Oncology, MacKay Memorial Hospital, Taipei, Taiwan
| | - John Chun-Hao Chen
- Department of Radiation Oncology, MacKay Memorial Hospital, Taipei, Taiwan; Department of Death Care Service, MacKay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan
| | - Yi-Shing Leu
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan; Department of Otolaryngology-Head and Neck Surgery, MacKay Memorial Hospital, Taipei, Taiwan
| | - Chung-Ji Liu
- Department of Oral and Maxillofacial Surgery, MacKay Memorial Hospital, Taipei, Taiwan
| | - Yu-Jen Chen
- Department of Radiation Oncology, MacKay Memorial Hospital, Taipei, Taiwan
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911
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Nasser NJ, Fenig E, Klein J, Agbarya A. Maintaining consistent bladder filling during external beam radiotherapy for prostate cancer. Tech Innov Patient Support Radiat Oncol 2021; 17:1-4. [PMID: 33553698 PMCID: PMC7851838 DOI: 10.1016/j.tipsro.2021.01.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 12/23/2020] [Accepted: 01/11/2021] [Indexed: 12/03/2022] Open
Abstract
Radiation for prostate cancer is preferably provided with a full urinary bladder. There are discrepancies how well current methods achieve consistent bladder filling. A urinary catheter with a check-valve controlled by a float is under development.
Radiation therapy for patients with prostate cancer is preferably provided with a full urinary bladder. Full bladder can potentially move the small intestine out of the radiation treatment regions, and results in decreased small bowel radiation dose and gastrointestinal toxicity. Maintaining consistent bladder filling during computerized tomography simulation scan used for treatment planning and at daily radiation treatments is challenging. Here we present an in-development urinary catheter with a floating balloon that drains the bladder only when urine reaches to a prespecified level, and review current methods used in clinic to ensure consistent bladder filling. These includes bladder filling protocols, ultrasound scanning and biofeedback techniques.
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Affiliation(s)
- Nicola J. Nasser
- Department of Radiation Oncology, University of Maryland School of Medicine, Maryland Proton Treatment Center, Baltimore, MD, USA
- Corresponding author at: University of Maryland School of Medicine, Department of Radiation Oncology, Maryland Proton Treatment Center, Baltimore, MD, USA.
| | - Eyal Fenig
- Institute of Oncology, Davidoff Center, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel
| | - Jonathan Klein
- Department of Radiation Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY, USA
| | - Abed Agbarya
- Institute of Oncology, Bnai Zion Medical Center, Haifa, Israel
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912
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Prajogi GB, Loreti G, Zubizarreta E, Merwe D. Role of the IAEA in education and training of radiotherapy professionals in Asia Pacific. J Med Imaging Radiat Oncol 2021; 65:431-435. [DOI: 10.1111/1754-9485.13143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 11/28/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Gregorius Ben Prajogi
- Applied Radiation Biology and Radiotherapy Section Division of Human Health Department of Nuclear Sciences and Applications International Atomic Energy Agency Vienna Austria
| | - Giorgia Loreti
- Dosimetry and Medical Radiation Physics Section Division of Human Health Department of Nuclear Sciences and Applications International Atomic Energy Agency Vienna Austria
| | - Eduardo Zubizarreta
- Applied Radiation Biology and Radiotherapy Section Division of Human Health Department of Nuclear Sciences and Applications International Atomic Energy Agency Vienna Austria
| | - Debbie Merwe
- Dosimetry and Medical Radiation Physics Section Division of Human Health Department of Nuclear Sciences and Applications International Atomic Energy Agency Vienna Austria
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913
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Hoeben BA, Pazos M, Albert MH, Seravalli E, Bosman ME, Losert C, Boterberg T, Manapov F, Ospovat I, Milla SM, Abakay CD, Engellau J, Kos G, Supiot S, Bierings M, Janssens GO. Towards homogenization of total body irradiation practices in pediatric patients across SIOPE affiliated centers. A survey by the SIOPE radiation oncology working group. Radiother Oncol 2021; 155:113-119. [DOI: 10.1016/j.radonc.2020.10.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/07/2020] [Accepted: 10/21/2020] [Indexed: 02/06/2023]
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914
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Wang H, Ma M, Qin F, Yuan J. The influence of prostatic calculi on lower urinary tract symptoms and sexual dysfunction: a narrative review. Transl Androl Urol 2021; 10:929-938. [PMID: 33718093 PMCID: PMC7947430 DOI: 10.21037/tau-20-1046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Prostatic calculi (PC) are commonly found in patients who present for urologic consultation. However, the effect of PC on urinary symptoms remains controversial. In this study, we searched the Embase and PubMed databases for literature related to the following keywords: “prostatic calculi”, “prostatic stone”, “prostatic lithiasis” and “prostatic calcification”, along with the limits, “lower urinary tract symptoms”, “sexual dysfunction”, “erectile dysfunction”, “erectile function”, and “premature ejaculation”. According to the literature, there are various subtypes of PC based on X-ray or ultrasound findings, including type I/II, type A/B, and endogenous PC/extrinsic PC. Furthermore, the formation of PC remains unclear, and more importantly, the ability of PC to cause lower urinary tract symptoms (LUTS) and sexual dysfunction (SD) is worth exploring. We retrospectively reviewed all available literature and found that most studies agreed that PC are associated with LUTS. The factors which may play an important role in the pathogenesis of LUTS include the size and location of PC, induced inflammation, and the blood flow of the prostate. Similarly, SD was also examined in the patients with PC, and psychological factors cannot be ignored in this regard. However, more in-depth study of the molecular mechanisms, including prospective, controlled, longitudinal, and large- sample studies, are needed in the future.
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Affiliation(s)
- Hao Wang
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu, China.,Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Ming Ma
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu, China.,Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Feng Qin
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu, China
| | - Jiuhong Yuan
- Andrology Laboratory, West China Hospital, Sichuan University, Chengdu, China.,Department of Urology, West China Hospital, Sichuan University, Chengdu, China
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915
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Neph R, Lyu Q, Huang Y, Yang YM, Sheng K. DeepMC: a deep learning method for efficient Monte Carlo beamlet dose calculation by predictive denoising in magnetic resonance-guided radiotherapy. Phys Med Biol 2021; 66:035022. [PMID: 33181498 PMCID: PMC9845197 DOI: 10.1088/1361-6560/abca01] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Emerging magnetic resonance (MR) guided radiotherapy affords significantly improved anatomy visualization and, subsequently, more effective personalized treatment. The new therapy paradigm imposes significant demands on radiation dose calculation quality and speed, creating an unmet need for the acceleration of Monte Carlo (MC) dose calculation. Existing deep learning approaches to denoise the final plan MC dose fail to achieve the accuracy and speed requirements of large-scale beamlet dose calculation in the presence of a strong magnetic field for online adaptive radiotherapy planning. Our deep learning dose calculation method, DeepMC, addresses these needs by predicting low-noise dose from extremely noisy (but fast) MC-simulated dose and anatomical inputs, thus enabling significant acceleration. DeepMC simultaneously reduces MC sampling noise and predicts corrupted dose buildup at tissue-air material interfaces resulting from MR-field induced electron return effects. Here we demonstrate our model's ability to accelerate dose calculation for daily treatment planning by a factor of 38 over traditional low-noise MC simulation with clinically meaningful accuracy in deliverable dose and treatment delivery parameters. As a post-processing approach, DeepMC provides compounded acceleration of large-scale dose calculation when used alongside established MC acceleration techniques in variance reduction and graphics processing unit-based MC simulation.
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Affiliation(s)
- Ryan Neph
- Department of Radiation Oncology, University of California Los Angeles, 200 Medical Plaza, #B265, Los Angeles, California 90095
| | - Qihui Lyu
- Department of Radiation Oncology, University of California Los Angeles, 200 Medical Plaza, #B265, Los Angeles, California 90095
| | | | - You Ming Yang
- Department of Radiation Oncology, University of California Los Angeles, 200 Medical Plaza, #B265, Los Angeles, California 90095
| | - Ke Sheng
- Corresponding Author: All communications may be addressed to Ke Sheng at or by mail at: 200 Medical Plaza #B265, University of California, c/o Ke Sheng, Los Angeles, California 90095
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916
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Keesman R, van der Bijl E, Janssen TM, Vijlbrief T, Pos FJ, van der Heide UA. Clinical workflow for treating patients with a metallic hip prosthesis using magnetic resonance imaging-guided radiotherapy. PHYSICS & IMAGING IN RADIATION ONCOLOGY 2021; 15:85-90. [PMID: 33458331 PMCID: PMC7807622 DOI: 10.1016/j.phro.2020.07.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 07/16/2020] [Accepted: 07/24/2020] [Indexed: 12/25/2022]
Abstract
Background & purpose Metallic prostheses distort the magnetic field during magnetic resonance imaging (MRI), leading to geometric distortions and signal loss. The purpose of this work was to develop a method to determine eligibility for MRI-guided radiotherapy (MRIgRT) on a per patient basis by estimating the magnitude of geometric distortions inside the clinical target volume (CTV). Materials & methods Three patients with prostate cancer and hip prosthesis, treated using MRIgRT, were included. Eligibility for MRIgRT was based on computed tomography and associated CTV delineations, together with a field-distortion (B0) map and anatomical images acquired during MR simulation. To verify the method, B0 maps made during MR simulation and each MRIgRT treatment fraction were compared. Results Estimates made during MR simulation of the magnitude of distortions inside the CTV were 0.43 mm, 0.19 mm and 2.79 mm compared to the average over all treatment fractions of 1.40 mm, 0.32 mm and 1.81 mm, per patient respectively. Conclusions B0 map acquisitions prior to treatment can be used to estimate the magnitude of distortions during MRIgRT to guide the decision on eligibility for MRIgRT of prostate cancer patients with metallic hip implants.
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Affiliation(s)
- Rick Keesman
- Department of Radiation Oncology, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Erik van der Bijl
- Department of Radiation Oncology, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Tomas M Janssen
- Department of Radiation Oncology, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Tineke Vijlbrief
- Department of Radiation Oncology, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Floris J Pos
- Department of Radiation Oncology, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
| | - Uulke A van der Heide
- Department of Radiation Oncology, Netherlands Cancer Institute, Plesmanlaan 121, 1066CX Amsterdam, The Netherlands
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917
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van Leeuwen RG, Verwegen D, van Kollenburg PG, Swinkels M, van der Maazen RW. Early clinical experience with a total body irradiation technique using field-in-field beams and on-line image guidance. PHYSICS & IMAGING IN RADIATION ONCOLOGY 2021; 16:12-17. [PMID: 33458337 PMCID: PMC7807619 DOI: 10.1016/j.phro.2020.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 08/23/2020] [Accepted: 09/21/2020] [Indexed: 01/28/2023]
Abstract
Background and purpose Total body irradiation (TBI) is a treatment used in the conditioning of patients prior to hematopoietic stem cell transplantation. We developed an extended-distance TBI technique using a conventional linac with multi-leaf collimator to deliver a homogeneous dose, and spare critical organs. Materials and methods Patients were treated either in lateral recumbent or in supine position depending on the dose level. A conventional linac was used with the patient midline at 350 cm from the beam source. A series of beams was prepared manually using a 3D treatment planning system (TPS) aiming to improve dose homogeneity, spare the organs at risk and facilitate accurate patient positioning. An optimized dose calculation model for extended-distance treatments was developed using phantom measurements. During treatment, in-vivo dosimetry was performed using electronic dosimeters, and accurate positioning was verified using a mobile megavoltage imager. We analyzed dose volume histogram parameters for 19 patients, and in-vivo measurements for 46 delivered treatment fractions. Results Optimization of the dose calculation model for TBI improved dose calculation by 2.1% at the beam axis, and 17% at the field edge. Treatment planning dose objectives and constraints were met for 16 of 19 patients. Results of in-vivo dosimetry were within the set limitations (±10%) with mean deviations of 3.7% posterior of the lungs and 0.6% for the abdomen. Conclusions We developed a TBI treatment technique using a conventional linac and TPS that can reliably be used in the conditioning regimen of patients prior to stem cell transplantation.
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918
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Finnegan RN, Orlandini L, Liao X, Yin J, Lang J, Dowling J, Fontanarosa D. Feasibility of using a novel automatic cardiac segmentation algorithm in the clinical routine of lung cancer patients. PLoS One 2021; 16:e0245364. [PMID: 33444379 PMCID: PMC7808597 DOI: 10.1371/journal.pone.0245364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 12/23/2020] [Indexed: 12/24/2022] Open
Abstract
Incidental radiation exposure to the heart during lung cancer radiotherapy is associated with radiation-induced heart disease and increased rates of mortality. By considering the respiratory-induced motion of the heart it is possible to create a radiotherapy plan that results in a lower overall cardiac dose. This approach is challenging using current clinical practices: manual contouring of the heart is time consuming, and subject to inter- and intra-observer variability. In this work, we investigate the feasibility of our previously developed, atlas-based, automatic heart segmentation tool to delineate the heart in four-dimensional x-ray computed tomography (4D-CT) images. We used a dataset comprising 19 patients receiving radiotherapy for lung cancer, with 4D-CT imaging acquired at 10 respiratory phases and with a maximum intensity projection image generated from these. For each patient, one of four experienced radiation oncologists contoured the heart on each respiratory phase image and the maximum intensity image. Automatic segmentation of the heart on these same patient image sets was achieved using a leave-one-out approach, where for each patient the remaining 18 were used as an atlas set. The consistency of the automatic segmentation relative to manual contouring was evaluated using the Dice similarity coefficient (DSC) and mean absolute surface-to-surface distance (MASD). The DSC and MASD are comparable to inter-observer variability in clinically acceptable whole heart delineations (average DSC > 0.93 and average MASD < 2.0 mm in all the respiratory phases). The comparison between automatic and manual delineations on the maximum intensity images produced an overall mean DSC of 0.929 and a mean MASD of 2.07 mm. The automatic, atlas-based segmentation tool produces clinically consistent and robust heart delineations and is easy to implement in the routine care of lung cancer patients.
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Affiliation(s)
- Robert Neil Finnegan
- Institute of Medical Physics, School of Physics, University of Sydney, Camperdown, New South Wales, Australia
| | - Lucia Orlandini
- Sichuan Cancer Hospital & Institute, Chengdu, China
- Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China
- School of Medicine, University of Electronic Science and Technology of China (UESTC), Chengdu, China
| | - Xiongfei Liao
- Sichuan Cancer Hospital & Institute, Chengdu, China
- Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China
- School of Medicine, University of Electronic Science and Technology of China (UESTC), Chengdu, China
| | - Jun Yin
- Sichuan Cancer Hospital & Institute, Chengdu, China
- Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China
- School of Medicine, University of Electronic Science and Technology of China (UESTC), Chengdu, China
- * E-mail: (JY); (JL)
| | - Jinyi Lang
- Sichuan Cancer Hospital & Institute, Chengdu, China
- Radiation Oncology Key Laboratory of Sichuan Province, Chengdu, China
- School of Medicine, University of Electronic Science and Technology of China (UESTC), Chengdu, China
- * E-mail: (JY); (JL)
| | - Jason Dowling
- Institute of Medical Physics, School of Physics, University of Sydney, Camperdown, New South Wales, Australia
- Australian eHealth Research Centre, CSIRO, Herston, Queensland, Australia
| | - Davide Fontanarosa
- Institute of Health Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia
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919
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Perkins T, Lee D, Simpson J, Greer P, Goodwin J. Experimental evaluation of four-dimensional Magnetic Resonance Imaging for radiotherapy planning of lung cancer. PHYSICS & IMAGING IN RADIATION ONCOLOGY 2021; 17:32-35. [PMID: 33898775 PMCID: PMC8058028 DOI: 10.1016/j.phro.2020.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 12/25/2022]
Abstract
Radiotherapy planning for lung cancer typically requires both 3D and 4D Computed Tomography (CT) to account for respiratory related movement. 4D Magnetic Resonance Imaging (MRI) with self-navigation offers a potential alternative with greater reliability in patients with irregular breathing patterns and improved soft tissue contrast. In this study 4D-CT and a 4D-MRI Radial Volumetric Interpolated Breath-hold Examination (VIBE) sequence was evaluated with a 4D phantom and 13 patient respiratory patterns, simulating tumour motion. Quantification of motion related tumour displacement in 4D-MRI and 4D-CT found no statistically significant difference in mean motion range. The results demonstrated the potential viability of 4D-MRI for lung cancer treatment planning.
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Affiliation(s)
- Terry Perkins
- Blacktown Cancer & Haematology Centre, Blacktown Hospital, NSW, Australia.,School of Physics, University of Sydney, Australia
| | - Danny Lee
- School of Mathematical and Physical Science, University of Newcastle, Australia
| | - John Simpson
- Radiation Oncology, Calvary Mater Newcastle, Australia.,School of Mathematical and Physical Science, University of Newcastle, Australia
| | - Peter Greer
- Radiation Oncology, Calvary Mater Newcastle, Australia.,School of Mathematical and Physical Science, University of Newcastle, Australia
| | - Jonathan Goodwin
- Radiation Oncology, Calvary Mater Newcastle, Australia.,School of Mathematical and Physical Science, University of Newcastle, Australia
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920
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Chung SY, Oh J, Chang JS, Shin J, Kim KH, Chun KH, Keum KC, Suh CO, Kang SM, Kim YB. Risk of Cardiac Disease in Patients With Breast Cancer: Impact of Patient-Specific Factors and Individual Heart Dose From Three-Dimensional Radiation Therapy Planning. Int J Radiat Oncol Biol Phys 2021; 110:473-481. [PMID: 33421556 DOI: 10.1016/j.ijrobp.2020.12.053] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 12/16/2020] [Accepted: 12/31/2020] [Indexed: 12/25/2022]
Abstract
PURPOSE This retrospective cohort study aimed to determine whether adjuvant radiation therapy increases the risk of cardiac toxicity in Asian women with breast cancer, with a focus on patient-specific factors. METHODS AND MATERIALS We evaluated women who underwent primary breast surgery for breast cancer with (n = 520) or without (n = 774) adjuvant radiation therapy between January 2005 and May 2013. Patients who underwent breast surgery without radiation therapy were categorized as patients who received 0 Gy to the heart. The primary endpoint was the occurrence of a breast cancer treatment-related heart disease (BCT-HD), defined as a diagnosis of angina pectoris, unstable angina, myocardial infarction, ischemic heart disease, heart failure, or atrial fibrillation. RESULTS In total, 1294 patients were included. The overall 5- and 10-year BCT-HD rates were 2.4% and 5.7%, respectively. The risk of an BCT-HD significantly increased per 1-Gy increase in the mean heart dose (adjusted hazard ratio: 1.23). Additionally, histories of hypertension (hazard ratio: 1.92), and diabetes (hazard ratio: 2.51) were found to be adverse risk factors, whereas regular physical exercise (hazard ratio: 0.17) was a protective factor. Subgroup analysis according to risk groups showed that the effect of increasing mean heart dose (per Gy) was similar between women without or with minimal risk factors (hazard ratio: 1.23) and women with multiple risk factors (hazard ratio: 1.27). CONCLUSIONS The results indicate a radiation dose-effect relationship for cardiac disease in breast cancer patients, highlighting that there remains a considerable risk of cardiac toxicity even with 3-dimensional radiation therapy planning. Thus, measures to minimize the heart dose in breast cancer patients undergoing adjuvant radiation therapy, even in those without any risk factor for cardiac disease, should be routinely implemented.
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Affiliation(s)
- Seung Yeun Chung
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, South Korea; Department of Radiation Oncology, Ajou University School of Medicine, Suwon, South Korea
| | - Jaewon Oh
- Cardiology Division, Severance Cardiovascular Hospital and Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Jee Suk Chang
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, South Korea.
| | - Jaeyong Shin
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Kyung Hwan Kim
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, South Korea
| | - Kyeong-Hyeon Chun
- Cardiology Division, Severance Cardiovascular Hospital and Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Ki Chang Keum
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, South Korea
| | - Chang-Ok Suh
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, South Korea; Department of Radiation Oncology, CHA Bundang Medical Center, CHA University, Seongnam-si, Gyeonggi-do, South Korea
| | - Seok-Min Kang
- Cardiology Division, Severance Cardiovascular Hospital and Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - Yong Bae Kim
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, South Korea
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921
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Cañas-Lerma AJ, Cuartero-Castañer ME, Mascialino G, Hidalgo-Andrade P. Empathy and COVID-19: Study in Professionals and Students of the Social Health Field in Ecuador. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:E338. [PMID: 33466348 PMCID: PMC7796130 DOI: 10.3390/ijerph18010338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/01/2021] [Accepted: 01/02/2021] [Indexed: 12/30/2022]
Abstract
Empathy plays a fundamental role in health related occupations. In this study, we analysed empathy levels in professionals (117) and students (170) from various healthcare fields in Ecuador during the COVID-19 pandemic. The Interpersonal Reactivity Index was used in an online survey. The results show high levels of empathy in both groups, influenced by age and gender. The students presented higher levels of personal distress, and their age was negatively correlated to empathy. Additionally, professionals working in physical health scored higher levels of personal distress compared to those in the field of emotional health. COVID-19 has placed social health systems in great stress. Despite this, the personal capacities for empathy of both students and health professionals have not been diminished.
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Affiliation(s)
- Ana J. Cañas-Lerma
- Philosophy and Social Work Department, Universitat de les Illes Balears, Crta. Valldemossa Km 7.5., 07122 Palma, Spain;
| | - M. Elena Cuartero-Castañer
- Philosophy and Social Work Department, Universitat de les Illes Balears, Crta. Valldemossa Km 7.5., 07122 Palma, Spain;
| | - Guido Mascialino
- School of Psychology, Universidad de Las Américas, Av. de los Granados E-12-41 y Colimes esq., Quito EC170125, Ecuador; (G.M.); (P.H.-A.)
| | - Paula Hidalgo-Andrade
- School of Psychology, Universidad de Las Américas, Av. de los Granados E-12-41 y Colimes esq., Quito EC170125, Ecuador; (G.M.); (P.H.-A.)
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922
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Cusumano D, Boldrini L, Yadav P, Casà C, Lee SL, Romano A, Piras A, Chiloiro G, Placidi L, Catucci F, Votta C, Mattiucci GC, Indovina L, Gambacorta MA, Bassetti M, Valentini V. Delta Radiomics Analysis for Local Control Prediction in Pancreatic Cancer Patients Treated Using Magnetic Resonance Guided Radiotherapy. Diagnostics (Basel) 2021; 11:diagnostics11010072. [PMID: 33466307 PMCID: PMC7824764 DOI: 10.3390/diagnostics11010072] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/31/2020] [Accepted: 12/31/2020] [Indexed: 02/07/2023] Open
Abstract
The aim of this study is to investigate the role of Delta Radiomics analysis in the prediction of one-year local control (1yLC) in patients affected by locally advanced pancreatic cancer (LAPC) and treated using Magnetic Resonance guided Radiotherapy (MRgRT). A total of 35 patients from two institutions were enrolled: A 0.35 Tesla T2*/T1 MR image was acquired for each case during simulation and on each treatment fraction. Physical dose was converted in biologically effective dose (BED) to compensate for different radiotherapy schemes. Delta Radiomics analysis was performed considering the gross tumour volume (GTV) delineated on MR images acquired at BED of 20, 40, and 60 Gy. The performance of the delta features in predicting 1yLC was investigated in terms of Wilcoxon Mann-Whitney test and area under receiver operating characteristic (ROC) curve (AUC). The most significant feature in predicting 1yLC was the variation of cluster shade calculated at BED = 40 Gy, with a p-value of 0.005 and an AUC of 0.78 (0.61-0.94). Delta Radiomics analysis on low-field MR images might play a promising role in 1yLC prediction for LAPC patients: further studies including an external validation dataset and a larger cohort of patients are recommended to confirm the validity of this preliminary experience.
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Affiliation(s)
- Davide Cusumano
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
| | - Luca Boldrini
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
| | - Poonam Yadav
- Department of Human Oncology, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Ave, Madison, WI 53792, USA; (P.Y.); (M.B.)
| | - Calogero Casà
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
- Correspondence: ; Tel.: +39-06-3015-5226
| | - Sangjune Laurence Lee
- Department of Oncology, University of Calgary, 1331 29 Street NW, Calgary, AB T2N 1N4, Canada;
| | - Angela Romano
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
| | - Antonio Piras
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
| | - Giuditta Chiloiro
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
| | - Lorenzo Placidi
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
| | - Francesco Catucci
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
| | - Claudio Votta
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
| | - Gian Carlo Mattiucci
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
| | - Luca Indovina
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
| | - Maria Antonietta Gambacorta
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
| | - Michael Bassetti
- Department of Human Oncology, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Ave, Madison, WI 53792, USA; (P.Y.); (M.B.)
| | - Vincenzo Valentini
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (D.C.); (L.B.); (A.R.); (A.P.); (G.C.); (L.P.); (F.C.); (C.V.); (G.C.M.); (L.I.); (M.A.G.); (V.V.)
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923
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MRI-guided stereotactic radiation therapy for hepatocellular carcinoma: a feasible and safe innovative treatment approach. J Cancer Res Clin Oncol 2021; 147:2057-2068. [PMID: 33398447 DOI: 10.1007/s00432-020-03480-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 11/22/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE Hepatocellular carcinoma (HCC) in early stages benefits from local ablative treatments such as radiofrequency ablation (RFA) or transarterial chemoembolization (TACE). In this context, radiotherapy (RT) has shown promising results but has not been thoroughly evaluated. Magnetic resonance-guided RT (MRgRT) may represent a paradigm shifting improvement in stereotactic body radiotherapy (SBRT) for liver tumors. METHODS We retrospectively evaluated HCC patients treated on a hybrid low-tesla MRgRT unit. A total biologically effective dose (BED) > 100 Gy was delivered in 5 consecutive fractions, respecting the appropriate organs-at-risk constraints. Hybrid MR scans were used for treatment planning and cine MR was used for delivery gating. Patients were followed up for toxicity and treatment-response assessment. RESULTS Ten patients were enrolled, with a total of 12 lesions. All the lesions were irradiated with no interruptions. Six patients had already performed previous local therapies. Median follow-up after SBRT was 6.5 months (1-25). Two cases of acute toxicity were reported (G ≤ 2 according to CTCAE v4.0). At the time of the analysis, 90% of the population presented local control. Child-Pugh before and after treatment remained unchanged in all but one patient. CONCLUSION MRgRT is a feasible and safe option showing favorable toxicity profile for HCC treatment.
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924
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925
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Xin X, Li J, Zhao Y, Wang P, Tang B, Yao X, Liao X, Ma J, Orlandini LC. Retrospective Study on Left-Sided Breast Radiotherapy: Dosimetric Results and Correlation with Physical Factors for Free Breathing and Breath Hold Irradiation Techniques. Technol Cancer Res Treat 2021; 20:15330338211062429. [PMID: 34855575 PMCID: PMC8646776 DOI: 10.1177/15330338211062429] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/12/2021] [Accepted: 10/25/2021] [Indexed: 12/25/2022] Open
Abstract
Objectives: In breast radiotherapy, the proximity of the target to sensitive structures together with the uncertainty introduced by respiratory movement, make this treatment one of the most studied to increase its effectiveness. Dosimetric and physical variables play an important role and the study of their correlation and impact on treatment is fundamental. This retrospective study aims to highlight the dosimetric differences of 2 different clinical data sets of patients receiving left-sided breast irradiation in free breathing (FB) or breath hold (BH). Methods: A total of 155 left breast carcinoma patients receiving whole-breast irradiation in FB (73 patients) and BH (82 patients) were enrolled in this study. The dosimetric parameters of the target, heart, left and right lung and right breast were evaluated and compared, and possible correlations were studied in both groups. Results: No significant difference (P > .05) was found in the target dosimetry; a clear advantage in BH for both high and low doses received by the heart, with reductions of the dosimetric parameters between 27.1% and 100% (P < .003); for the left lung reductions decreased with increasing dose (-22.4% and -13.4% for doses of 5 and 20 Gy, respectively, P < .003). Conclusion: Significant correlations for BH treatments were registered between the volumes of the target and left lung, and the dosimetric parameters of the heart and left lung. BH treatment brings significant dosimetric advantages to organs at risk for a wide range of patients with different anatomy, target volumes and lung capacity, with additional benefits for small-sized breasts and important lung capacity.
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Affiliation(s)
- Xin Xin
- Sichuan Cancer Hospital & Research Institute, Chengdu, China
- UESTC University of Electronic Science and Technology of China, Chengdu, China
| | - Jie Li
- Sichuan Cancer Hospital & Research Institute, Chengdu, China
- UESTC University of Electronic Science and Technology of China, Chengdu, China
| | - Yanqun Zhao
- Sichuan Cancer Hospital & Research Institute, Chengdu, China
- UESTC University of Electronic Science and Technology of China, Chengdu, China
| | - Pei Wang
- Sichuan Cancer Hospital & Research Institute, Chengdu, China
- UESTC University of Electronic Science and Technology of China, Chengdu, China
| | - Bin Tang
- Sichuan Cancer Hospital & Research Institute, Chengdu, China
- UESTC University of Electronic Science and Technology of China, Chengdu, China
| | - Xinghong Yao
- Sichuan Cancer Hospital & Research Institute, Chengdu, China
- UESTC University of Electronic Science and Technology of China, Chengdu, China
| | - Xiongfei Liao
- Sichuan Cancer Hospital & Research Institute, Chengdu, China
- UESTC University of Electronic Science and Technology of China, Chengdu, China
| | - Jiabao Ma
- Sichuan Cancer Hospital & Research Institute, Chengdu, China
- UESTC University of Electronic Science and Technology of China, Chengdu, China
| | - Lucia Clara Orlandini
- Sichuan Cancer Hospital & Research Institute, Chengdu, China
- UESTC University of Electronic Science and Technology of China, Chengdu, China
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926
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Nishioka K, Gotoh K, Hashimoto T, Abe T, Osawa T, Matsumoto R, Yokota I, Katoh N, Kinoshita R, Yasuda K, Yakabe T, Yoshimura T, Takao S, Shinohara N, Aoyama H, Shimizu S, Shirato H. Are simple verbal instructions sufficient to ensure that bladder volume does not deteriorate prostate position reproducibility during spot scanning proton therapy? BJR Open 2021; 3:20210064. [PMID: 35707757 PMCID: PMC9185850 DOI: 10.1259/bjro.20210064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 10/26/2021] [Indexed: 11/20/2022] Open
Abstract
Objectives: The purpose of this study is to investigate whether verbal instructions are sufficient for bladder volume (BV) control not to deteriorate prostate position reproducibility in image-guided spot scanning proton therapy (SSPT) for localized prostate cancer. Methods: A total of 268 treatment sessions in 12 consecutive prostate cancer patients who were treated with image-guided SSPT with fiducial markers were retrospectively analyzed. In addition to strict rectal volume control procedures, simple verbal instructions to void urine one hour before the treatment were used here. The BV was measured by a Bladder Scan just before the treatment, and the prostate motion was measured by intraprostatic fiducial markers and two sets of X-ray fluoroscopy images. The correlation between the BV change and prostate motion was assessed by linear mixed-effects models and systematic and random errors according to the reproducibility of the BV. Results: The mean absolute BV change during treatment was from −98.7 to 86.3 ml (median 7.1 ml). The mean absolute prostate motion of the patients in the left-right direction was −1.46 to 1.85 mm; in the cranial-caudal direction it was −6.10 to 3.65 mm, and in the anteroposterior direction −1.90 to 5.23 mm. There was no significant relationship between the BV change and prostate motion during SSPT. The early and late genitourinary and gastrointestinal toxicity was minimal with a minimum follow up of 4.57 years. Conclusions: Simple verbal instructions about urination was suggested to be sufficient to control the BV not to impact on the prostate motion and clinical outcomes in image-guided SSPT. Careful attention to BV change is still needed when the seminal vesicle is to be treated. Advances in knowledge: Our data demonstrated that there was no apparent relationship between BV changes and prostate position reproducibility and simple verbal instruction about urination could be sufficient for image-guided SSPT.
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Affiliation(s)
- Kentaro Nishioka
- Department of Radiation Medical Science and Engineering, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Kento Gotoh
- Department of Radiation Medical Science and Engineering, Radiation Medical physics, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takayuki Hashimoto
- Department of Radiation Medical Science and Engineering, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takashige Abe
- Department of Renal and Genitourinary Surgery, Hokkaido University Graduate School of Medicine / School of Medicine, Sapporo, Hokkaido, Japan
| | - Takahiro Osawa
- Department of Renal and Genitourinary Surgery, Hokkaido University Graduate School of Medicine / School of Medicine, Sapporo, Hokkaido, Japan
| | - Ryuji Matsumoto
- Department of Renal and Genitourinary Surgery, Hokkaido University Graduate School of Medicine / School of Medicine, Sapporo, Hokkaido, Japan
| | - Isao Yokota
- Department of Biostatistics, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Norio Katoh
- Department of Radiation Oncology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Rumiko Kinoshita
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Koichi Yasuda
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Toshiaki Yakabe
- Department of Radiation Oncology, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Takaaki Yoshimura
- Department of Health Sciences and Technology, Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Seishin Takao
- Department of Radiation Medical Science and Engineering, Radiation Medical physics, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Nobuo Shinohara
- Department of Renal and Genitourinary Surgery, Hokkaido University Graduate School of Medicine / School of Medicine, Sapporo, Hokkaido, Japan
| | - Hidefumi Aoyama
- Department of Radiation Oncology, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Shinichi Shimizu
- Department of Radiation Medical Science and Engineering, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Hiroki Shirato
- Global Center for Biomedical Science and Engineering, Faculty of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
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927
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Gani C, Boeke S, McNair H, Ehlers J, Nachbar M, Mönnich D, Stolte A, Boldt J, Marks C, Winter J, Künzel LA, Gatidis S, Bitzer M, Thorwarth D, Zips D. Marker-less online MR-guided stereotactic body radiotherapy of liver metastases at a 1.5 T MR-Linac - Feasibility, workflow data and patient acceptance. Clin Transl Radiat Oncol 2021; 26:55-61. [PMID: 33319073 PMCID: PMC7723999 DOI: 10.1016/j.ctro.2020.11.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/24/2020] [Accepted: 11/24/2020] [Indexed: 12/25/2022] Open
Abstract
INTRODUCTION Stereotactic body radiotherapy (SBRT) is an established ablative treatment for liver tumors with excellent local control rates. Magnetic resonance imaging guided radiotherapy (MRgRT) provides superior soft tissue contrast and may therefore facilitate a marker-less liver SBRT workflow. The goal of the present study was to investigate feasibility, workflow parameters, toxicity and patient acceptance of MRgSBRT on a 1.5 T MR-Linac. METHODS Ten consecutive patients with liver metastases treated on a 1.5 T MR-Linac were included in this prospective trial. Tumor delineation was performed on four-dimensional computed tomography scans and both exhale triggered and free-breathing T2 MRI scans from the MR-Linac. An internal target volume based approach was applied. Organ at risk constraints were based on the UKSABR guidelines (Version 6.1). Patient acceptance regarding device specific aspects was assessed and toxicity was scored according to the common toxicity criteria of adverse events, version 5. RESULTS Nine of ten tumors were clearly visible on the 1.5 T MR-Linac. No patient had fiducial markers placed for treatment. All patients were treated with three or five fractions. Median dose to 98% of the gross tumor volume was 38.5 Gy. The median time from "patient identity check" until "beam-off" was 31 min. Median beam on time was 9.6 min. Online MRgRT was well accepted in general and no treatment had to be interrupted on patient request. No event of symptomatic radiation induced liver disease was observed after a median follow-up of ten month (range 3-17 months). CONCLUSION Our early experience suggests that online 1.5 T MRgSBRT of liver metastases represents a promising new non-invasive marker-free treatment modality based on high image quality, clinically reasonable in-room times and high patient acceptance. Further studies are necessary to assess clinical outcome, to validate advanced motion management and to explore the benefit of online response adaptive liver SBRT.
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Affiliation(s)
- Cihan Gani
- Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
- German Cancer Consortium (DKTK), Partner Site Tübingen, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - S. Boeke
- Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
- German Cancer Consortium (DKTK), Partner Site Tübingen, and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - H. McNair
- Department of Radiotherapy, The Royal Marsden Hospital NHS Foundation Trust, United Kingdom
| | - J. Ehlers
- Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
| | - M. Nachbar
- Section for Biomedical Physics. Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
| | - D. Mönnich
- Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
- German Cancer Consortium (DKTK), Partner Site Tübingen, and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Section for Biomedical Physics. Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
| | - A. Stolte
- Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
| | - J. Boldt
- Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
| | - C. Marks
- Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
| | - J. Winter
- Section for Biomedical Physics. Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
| | - Luise A. Künzel
- Section for Biomedical Physics. Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
| | - S. Gatidis
- Department of Diagnostic and Interventional Radiology, Medical Faculty and University Hospital, Eberhard Karls University, Tübingen, Germany
| | - M. Bitzer
- Department of Gastroenterology, Gastrointestinal Oncology, Hepatology and Infectious Diseases, Eberhard Karls University, Tübingen, Germany
| | - D. Thorwarth
- Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
- German Cancer Consortium (DKTK), Partner Site Tübingen, and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Section for Biomedical Physics. Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
| | - D. Zips
- Department of Radiation Oncology, University Hospital and Medical Faculty, Eberhard Karls University Tübingen, Germany
- German Cancer Consortium (DKTK), Partner Site Tübingen, and German Cancer Research Center (DKFZ), Heidelberg, Germany
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928
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Mazzarotto R, Simoni N, Guariglia S, Rossi G, Micera R, De Robertis R, Pierelli A, Zivelonghi E, Malleo G, Paiella S, Salvia R, Cavedon C, Milella M, Bassi C. Dosimetric Feasibility Study of Dose Escalated Stereotactic Body Radiation Therapy (SBRT) in Locally Advanced Pancreatic Cancer (LAPC) Patients: It Is Time to Raise the Bar. Front Oncol 2020; 10:600940. [PMID: 33392093 PMCID: PMC7773844 DOI: 10.3389/fonc.2020.600940] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/17/2020] [Indexed: 12/12/2022] Open
Abstract
Background and Objective To assess the dosimetric feasibility of a stereotactic body radiotherapy (SBRT) dose escalated protocol, with a simultaneous integrated boost (SIB) and a simultaneous integrated protection (SIP) approach, in patients with locally advanced pancreatic cancer (LAPC). Material and Methods Twenty LAPC lesions, previously treated with SBRT at our Institution, were re-planned. The original prescribed and administered dose was 50/30/25 Gy in five fractions to PTVsib (tumor-vessel interface [TVI])/PTVt (tumor volume)/PTVsip (overlap area between PTVt and planning organs at risk volume [PRVoars]), respectively. At re-planning, the prescribed dose was escalated up to 60/40/33 Gy in five fractions to PTVsib/PTVt/PTVsip, respectively. All plans were performed using an inspiration breath hold (IBH) technique and generated with volumetric modulated arc therapy (VMAT). Well-established and accepted OAR dose constraints were used (D0.5cc < 33 Gy for luminal OARs and D0.5cc < 38 Gy for corresponding PRVoars). The primary end-point was to achieve a median dose equal to the prescription dose for the PTVsib with D98≥ 95% (95% of prescription dose is the minimum dose), and a coverage for PTVt and PTVsip of D95≥95%, with minor deviations in OAR dose constraints in < 10% of the plans. Results PTVsib median (± SD) dose/D95/conformity index (CI) were 60.54 (± 0.85) Gy/58.96 (± 0.86) Gy/0.99 (± 0.01), respectively; whilst PTVt median (± SD) dose/D95 were 44.51 (± 2.69) Gy/38.44 (± 0.82) Gy, and PTVsip median (± SD) dose/D95 were 35.18 (± 1.42) Gy/33.01 (± 0.84) Gy, respectively. With regard to OARs, median (± SD) maximum dose (D0.5cc) to duodenum/stomach/bowel was 29.31 (± 5.72) Gy/25.29 (± 6.90) Gy/27.03 (± 5.67) Gy, respectively. A minor acceptable deviation was found for a single plan (bowel and duodenum D0.5cc=34.8 Gy). V38 < 0.5 cc was achieved for all PRV luminal OARs. Conclusions In LAPC patients SBRT, with a SIB/SIP dose escalation approach up to 60/40/33 Gy in five fractions to PTVsib/PTVt/PTVsip, respectively, is dosimetrically feasible with adequate PTVs coverage and respect for OAR dose constraints.
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Affiliation(s)
- Renzo Mazzarotto
- Department of Radiation Oncology, University of Verona Hospital Trust, Verona, Italy
| | - Nicola Simoni
- Department of Radiation Oncology, University of Verona Hospital Trust, Verona, Italy
| | - Stefania Guariglia
- Department of Medical Physics, University of Verona Hospital Trust, Verona, Italy
| | - Gabriella Rossi
- Department of Radiation Oncology, University of Verona Hospital Trust, Verona, Italy
| | - Renato Micera
- Department of Radiation Oncology, University of Verona Hospital Trust, Verona, Italy
| | | | - Alessio Pierelli
- Department of Medical Physics, University of Verona Hospital Trust, Verona, Italy
| | - Emanuele Zivelonghi
- Department of Medical Physics, University of Verona Hospital Trust, Verona, Italy
| | - Giuseppe Malleo
- Department of General and Pancreatic Surgery, University of Verona Hospital Trust, Verona, Italy
| | - Salvatore Paiella
- Department of General and Pancreatic Surgery, University of Verona Hospital Trust, Verona, Italy
| | - Roberto Salvia
- Department of General and Pancreatic Surgery, University of Verona Hospital Trust, Verona, Italy
| | - Carlo Cavedon
- Department of Medical Physics, University of Verona Hospital Trust, Verona, Italy
| | - Michele Milella
- Department of Oncology, University of Verona Hospital Trust, Verona, Italy
| | - Claudio Bassi
- Department of General and Pancreatic Surgery, University of Verona Hospital Trust, Verona, Italy
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929
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Buchanan C, Howitt ML, Wilson R, Booth RG, Risling T, Bamford M. Predicted Influences of Artificial Intelligence on the Domains of Nursing: Scoping Review. JMIR Nurs 2020; 3:e23939. [PMID: 34406963 PMCID: PMC8373374 DOI: 10.2196/23939] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/05/2020] [Accepted: 11/06/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Artificial intelligence (AI) is set to transform the health system, yet little research to date has explored its influence on nurses-the largest group of health professionals. Furthermore, there has been little discussion on how AI will influence the experience of person-centered compassionate care for patients, families, and caregivers. OBJECTIVE This review aims to summarize the extant literature on the emerging trends in health technologies powered by AI and their implications on the following domains of nursing: administration, clinical practice, policy, and research. This review summarizes the findings from 3 research questions, examining how these emerging trends might influence the roles and functions of nurses and compassionate nursing care over the next 10 years and beyond. METHODS Using an established scoping review methodology, MEDLINE, CINAHL, EMBASE, PsycINFO, Cochrane Database of Systematic Reviews, Cochrane Central, Education Resources Information Center, Scopus, Web of Science, and ProQuest databases were searched. In addition to the electronic database searches, a targeted website search was performed to access relevant gray literature. Abstracts and full-text studies were independently screened by 2 reviewers using prespecified inclusion and exclusion criteria. Included articles focused on nursing and digital health technologies that incorporate AI. Data were charted using structured forms and narratively summarized. RESULTS A total of 131 articles were retrieved from the scoping review for the 3 research questions that were the focus of this manuscript (118 from database sources and 13 from targeted websites). Emerging AI technologies discussed in the review included predictive analytics, smart homes, virtual health care assistants, and robots. The results indicated that AI has already begun to influence nursing roles, workflows, and the nurse-patient relationship. In general, robots are not viewed as replacements for nurses. There is a consensus that health technologies powered by AI may have the potential to enhance nursing practice. Consequently, nurses must proactively define how person-centered compassionate care will be preserved in the age of AI. CONCLUSIONS Nurses have a shared responsibility to influence decisions related to the integration of AI into the health system and to ensure that this change is introduced in a way that is ethical and aligns with core nursing values such as compassionate care. Furthermore, nurses must advocate for patient and nursing involvement in all aspects of the design, implementation, and evaluation of these technologies. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) RR2-10.2196/17490.
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Affiliation(s)
| | | | - Rita Wilson
- Registered Nurses' Association of Ontario, Toronto, ON, Canada
| | - Richard G Booth
- Arthur Labatt Family School of Nursing, Western University, London, ON, Canada
| | - Tracie Risling
- College of Nursing, University of Saskatchewan, Saskatoon, SK, Canada
| | - Megan Bamford
- Registered Nurses' Association of Ontario, Toronto, ON, Canada
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930
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Boldrini L, Romano A, Placidi L, Mattiucci GC, Chiloiro G, Cusumano D, Pollutri V, Antonelli MV, Indovina L, Gambacorta MA, Valentini V. Case Report: First in Human Online Adaptive MR Guided SBRT of Peritoneal Carcinomatosis Nodules: A New Therapeutic Approach for the Oligo-Metastatic Patient. Front Oncol 2020; 10:601739. [PMID: 33384958 PMCID: PMC7770165 DOI: 10.3389/fonc.2020.601739] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/10/2020] [Indexed: 12/28/2022] Open
Abstract
Peritoneal carcinosis (PC) is characterized by poor prognosis. PC is currently treated as a locoregional disease and the possibility to perform very precise treatments such as stereotactic body radiation therapy (SBRT) has opened up new therapeutic perspectives. More recently, the introduction of Magnetic Resonance-guided Radiation Therapy (MRgRT) allowed online adaptation (OA) of treatment plan to optimize daily dose distribution based on patient’s anatomy. The aim of this study is the evaluation of the effectiveness of SBRT OA workflow in an oligometastatic patient affected by PC. We report the clinical case of a patient affected by PC originating from colon cancer, previously treated with chemotherapy and surgery, addressed to OA SBRT treatment on a single chemoresistant PC nodule, delivered with a 0.35 T MR Linac. Treatment was delivered using gating approach in deep inspiration breath hold condition in order to reduce intrafraction variability. Prescription dose was 35 Gy in 5 fractions. The PTV V95% of the original plan was 96.6%, while the predicted values for the following fractions were 11.9, 56.4, 0, 0, and 61%. Similarly, the small bowel V19.5 Gy of the original plan was 4.63 cc, while the predicted values for the following fractions were 3.7, 8.6, 10.7, 1.96, 3.7 cc. Thanks to the OA approach, the re-optimized PTV V95% coverage improved to 96.1, 89.0, 85.5, 94.5, and 94%; while the small bowel V19.5 Gy to 3.36; 3.28; 1.84; 2.62; 2.6 cc respectively. After the end of RT, the patient was addressed to follow-up, and the re-evaluation 18F-FDG PET-CT was performed after 10 months from irradiation showed complete response. No acute or late toxicities were recorded. MRgRT with OA approach in PC patients is technically and clinically feasible with clean toxicity result. Online adaptive SBRT for oligometastases opens up new therapeutic scenarios in the management of this category of patients.
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Affiliation(s)
- Luca Boldrini
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
| | - Angela Romano
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
| | - Lorenzo Placidi
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
| | - Gian Carlo Mattiucci
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
| | - Giuditta Chiloiro
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
| | - Davide Cusumano
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
| | - Veronica Pollutri
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
| | - Marco Valerio Antonelli
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
| | - Luca Indovina
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
| | - Maria Antonietta Gambacorta
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
| | - Vincenzo Valentini
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario "Agostino Gemelli" IRCCS, Rome, Italy
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931
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LEE VSC, SchettIno G, Nisbet A. UK adaptive radiotherapy practices for head and neck cancer patients. BJR Open 2020; 2:20200051. [PMID: 33367201 PMCID: PMC7749087 DOI: 10.1259/bjro.20200051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/13/2020] [Accepted: 10/19/2020] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE To provide evidence on the extent and manner in which adaptive practices have been employed in the UK and identify the main barriers for the clinical implementation of adaptive radiotherapy (ART) in head and neck (HN) cancer cases. METHODS In December 2019, a Supplementary Material 1, of 23 questions, was sent to all UK radiotherapy centres (67). This covered general information to current ART practices and perceived barriers to implementation. RESULTS 31 centres responded (46%). 56% responding centres employed ART for between 10 and 20 patients/annum. 96% of respondents were using CBCT either alone or with other modalities for assessing "weight loss" and "shell gap," which were the main reasons for ART. Adaptation usually occurs at week three or four during the radiotherapy treatment. 25 responding centres used an online image-guided radiotherapy (IGRT) approach and 20 used an offline ad hoc ART approach, either with or without protocol level. Nearly 70% of respondents required 2 to 3 days to create an adaptive plan and 95% used 3-5 mm adaptive planning target volume margins. All centres performed pre-treatment QA. "Limited staff resources" and "lack of clinical relevance" were identified as the two main barriers for ART implementation. CONCLUSION There is no consensus in adaptive practice for HN cancer patients across the UK. For those centres not employing ART, similar clinical implementation barriers were identified. ADVANCES IN KNOWLEDGE An insight into contemporary UK practices of ART for HN cancer patients indicating national guidance for ART implementation for HN cancer patients may be required.
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Affiliation(s)
| | | | - Andrew Nisbet
- Department of Medical Physics & Biomedical Engineering, University College London, London, UK
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932
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[MR-Linac: The era of personalised radiation therapy]. Bull Cancer 2020; 108:49-54. [PMID: 33308847 DOI: 10.1016/j.bulcan.2020.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 10/26/2020] [Indexed: 11/24/2022]
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933
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Hansen CC, Egleston B, Leachman BK, Churilla TM, DeMora L, Ebersole B, Bauman JR, Liu JC, Ridge JA, Galloway TJ. Patterns of Multidisciplinary Care of Head and Neck Squamous Cell Carcinoma in Medicare Patients. JAMA Otolaryngol Head Neck Surg 2020; 146:1136-1146. [PMID: 33090191 PMCID: PMC7582229 DOI: 10.1001/jamaoto.2020.3496] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Importance Multidisciplinary care (MDC) yields proven benefits for patients with cancer, although it may be underused in the complex management of head and neck squamous cell carcinoma (HNSCC). Objective To characterize the patterns of MDC in the treatment of HNSCC among elderly patients in the US. Design, Setting, and Participants This nationwide, population-based, retrospective cohort study used Surveillance, Epidemiology, and End Results (SEER)-Medicare linked data from January 1, 1991, to December 31, 2011, to identify patients 66 years or older diagnosed with head and neck cancer and determine the dates of diagnosis, oncology consultations, treatment initiation, and speech therapy evaluation in addition to MDC completion. Multidisciplinary care was defined in a stage-dependent manner: localized disease necessitated consultations with radiation and surgical oncologists, and advanced-stage disease also included a medical oncology consultation, all before definitive treatment. Data were analyzed between December 2016 and September 2020. Main Outcomes and Measures Rates of MDC across all subsites of head and neck cancer as measured by the presence of an evaluation for each oncologist on the MDC team and its effect on treatment initiation. Results This cohort study assessed 28 293 patients with HNSCC (mean [SD] age, 75.1 [6.6] years; 67% male; 87% White) from the SEER-Medicare linked database. The HNSCC subsites included larynx (40%), oral cavity (30%), oropharynx (21%), hypopharynx (7%), and nasopharynx (2%). Overall, the practice of MDC significantly increased over time, from 24% in 1991 to 52% in 2011 (P < .001). For patients with localized (stage 0-II) tumors, 60% received care in the multidisciplinary setting, whereas 28% of those with advanced-stage disease did. A total of 18 181 patients (64%) were treated with initial definitive nonsurgical therapy across all stages. Regardless of stage and subsite, few patients (2%) underwent evaluation by a speech-language pathologist before definitive therapy. Multidisciplinary care prolonged the time to initiation of definitive treatment by 11 days for localized disease and 10 days for advanced disease. Conclusions and Relevance This cohort study found that most elderly patients with localized HNSCC received MDC, whereas few patients with advanced-stage disease received such care, although a significant proportion received adjuvant therapy. Multidisciplinary care may prolong time to initiation of definitive treatment with an uncertain impact. Consultation with a speech-language pathologist before definitive therapy was rare.
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Affiliation(s)
- Chase C. Hansen
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Brian Egleston
- Department of Biostatistics, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Brooke K. Leachman
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Thomas M. Churilla
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Lyudmila DeMora
- Department of Biostatistics, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Barbara Ebersole
- Department of Otolaryngology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Jessica R. Bauman
- Department of Medical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Jeffrey C. Liu
- Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - John A. Ridge
- Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
| | - Thomas J. Galloway
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania
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934
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Storey CL, Hanna GG, Greystoke A. Practical implications to contemplate when considering radical therapy for stage III non-small-cell lung cancer. Br J Cancer 2020; 123:28-35. [PMID: 33293673 PMCID: PMC7735214 DOI: 10.1038/s41416-020-01072-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The type of patients with stage III non-small-cell lung cancer (NSCLC) selected for concurrent chemoradiotherapy (cCRT) varies between and within countries, with higher-volume centres treating patients with more co-morbidities and higher-stage disease. However, in spite of these disease characteristics, these patients have improved overall survival, suggesting that there are additional approaches that should be optimised and potentially standardised. This paper aims to review the current knowledge and best practices surrounding treatment for patients eligible for cCRT. Initially, this includes timely acquisition of the full diagnostic workup for the multidisciplinary team to comprehensively assess a patient for treatment, as well as imaging scans, patient history, lung function and genetic tests. Such information can provide prognostic information on how a patient will tolerate their cCRT regimen, and to perhaps limit the use of additional supportive care, such as steroids, which could impact on further treatments, such as immunotherapy. Furthermore, knowledge of the safety profile of individual double-platinum chemotherapy regimens and the technological advances in radiotherapy could aid in optimising patients for cCRT treatment, improving its efficacy whilst minimising its toxicities. Finally, providing patients with preparatory and ongoing support with input from dieticians, palliative care professionals, respiratory and care-of-the-elderly physicians during treatment may also help in more effective treatment delivery, allowing patients to achieve the maximum potential from their treatments.
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Affiliation(s)
- Claire L Storey
- Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Gerard G Hanna
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Alastair Greystoke
- Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK.
- Newcastle University Centre for Cancer, Newcastle University, Newcastle upon Tyne, UK.
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935
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Fiagan YA, Bossuyt E, Nevens D, Dirix P, Theys F, Gevaert T, Verellen D. In vivo dosimetry for patients with prostate cancer to assess possible impact of bladder and rectum preparation. Tech Innov Patient Support Radiat Oncol 2020; 16:65-69. [PMID: 33294646 PMCID: PMC7701258 DOI: 10.1016/j.tipsro.2020.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 11/19/2022] Open
Abstract
PURPOSE/OBJECTIVE In all treatment sites of our radiotherapy network, in vivo dosimetry (PerFRACTION™) was fully implemented in February 2018. We hypothesized that additional help with bladder and rectum preparation by home nursing would improve patients' preparation and investigated if this could be assessed using in vivo dosimetry (IVD). MATERIALS/METHODS A retrospective study was conducted with a test group who received additional help with bladder and rectum preparation by home nurses and a control group who only received information on bladder and rectum preparation according to the standard protocol. Patients were treated with a 6 MV Volumetric Modulated Arc Therapy (VMAT) technique. Electronic portal imaging device (EPID)-based integrated transit dose images were acquired on the first 3 days of treatment and weekly thereafter or more if failed fractions (FF) occurred. Results were analyzed using a global gamma analysis with a threshold of 20%, tolerance of 5% (dose difference) and 5 mm (distance to agreement), and a passing level of 95%. RESULTS Data of 462 prostate patients was analyzed: 39 and 423 in a test and control group respectively with a comparable number of measurements (on average 8.0 (σ = 4.8) and 7.1 (σ = 4.5) respectively per treatment course). Of the FF, 39% and 31% were related to variations in bladder and rectum filling for the test and control group respectively. Subgroups were created based on the number of FF, no statistically significant differences were observed. CONCLUSION Two dimensional EPID-based IVD successfully detected deviations due to variations in bladder and rectum filling, however it could not confirm the hypothesis.
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Affiliation(s)
- Yawo A.C. Fiagan
- Iridium Netwerk, Radiation Oncology Department, Universiteit Antwerpen, Antwerp, Belgium
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Evy Bossuyt
- Iridium Netwerk, Radiation Oncology Department, Universiteit Antwerpen, Antwerp, Belgium
| | - Daan Nevens
- Iridium Netwerk, Radiation Oncology Department, Universiteit Antwerpen, Antwerp, Belgium
- Faculty of Medicine and Health Sciences, Universiteit Antwerpen, Antwerp, Belgium
| | - Piet Dirix
- Iridium Netwerk, Radiation Oncology Department, Universiteit Antwerpen, Antwerp, Belgium
- Faculty of Medicine and Health Sciences, Universiteit Antwerpen, Antwerp, Belgium
| | - Frank Theys
- Iridium Netwerk, Radiation Oncology Department, Universiteit Antwerpen, Antwerp, Belgium
| | - Thierry Gevaert
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Dirk Verellen
- Iridium Netwerk, Radiation Oncology Department, Universiteit Antwerpen, Antwerp, Belgium
- Faculty of Medicine and Health Sciences, Universiteit Antwerpen, Antwerp, Belgium
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936
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Kao J, Karwowski P, Pettit J, Barney AK, Atalla C. Multiparametric prostate MRI-based intensity-modulated radiation therapy guided by prostatic calcifications. Br J Radiol 2020; 93:20200571. [PMID: 32846099 DOI: 10.1259/bjr.20200571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The optimal technique to administer image-guided radiation therapy for prostate cancer remains poorly defined. This study assessed outcomes after multiparametric prostate MRI-based planning was delivered with image-guided radiation therapy using prostatic calculi observed on cone beam CT (CBCT). METHODS Between January 2015 and December 2017, 94 consecutive patients were treated with CBCT-based image-guided radiation therapy (IGRT) without fiducial markers. MRI was routinely incorporated for target delineation and intraprostatic tumor nodules were boosted to allow reduced doses to normal appearing prostate. The primary endpoint was the prevalence of prostatic calcifications while toxicity and biochemical control were secondary endpoints. RESULTS Median follow-up was 39.7 months with 82% NCCN intermediate to very high risk. Intraprostatic calculi were noted in 68% of patients. The 3-year biochemical control, late grade ≥2 rectal toxicity and late grade ≥2 urinary toxicity rates were 96%, 3 and 7%, respectively. Biochemical control and toxicity were not significantly impacted by the presence of prostatic calculi. CONCLUSION Prostatic calcifications can serve as natural fiducial markers to allow for non-invasive IGRT for prostate cancer with promising early disease control and toxicity outcomes. ADVANCES IN KNOWLEDGE Prostate calcification-guided IGRT is technically feasible.
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Affiliation(s)
- Johnny Kao
- Department of Radiation Oncology, Good Samaritan Hospital Medical Center, West Islip, New York, United States
| | - Pawel Karwowski
- Department of Radiation Oncology, Good Samaritan Hospital Medical Center, West Islip, New York, United States
| | - Jeffrey Pettit
- Department of Radiation Oncology, Good Samaritan Hospital Medical Center, West Islip, New York, United States
| | - Austin Kevin Barney
- Department of Radiation Oncology, Good Samaritan Hospital Medical Center, West Islip, New York, United States
| | - Christopher Atalla
- Division of Urology, Good Samaritan Hospital Medical Center, West Islip, New York, United States
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937
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Diniz JOB, Ferreira JL, Diniz PHB, Silva AC, de Paiva AC. Esophagus segmentation from planning CT images using an atlas-based deep learning approach. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2020; 197:105685. [PMID: 32798976 DOI: 10.1016/j.cmpb.2020.105685] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND AND OBJECTIVE One of the main steps in the planning of radiotherapy (RT) is the segmentation of organs at risk (OARs) in Computed Tomography (CT). The esophagus is one of the most difficult OARs to segment. The boundaries between the esophagus and other surrounding tissues are not well-defined, and it is presented in several slices of the CT. Thus, manually segment the esophagus requires a lot of experience and takes time. This difficulty in manual segmentation combined with fatigue due to the number of slices to segment can cause human errors. To address these challenges, computational solutions for analyzing medical images and proposing automated segmentation have been developed and explored in recent years. In this work, we propose a fully automatic method for esophagus segmentation for better planning of radiotherapy in CT. METHODS The proposed method is a fully automated segmentation of the esophagus, consisting of 5 main steps: (a) image acquisition; (b) VOI segmentation; (c) preprocessing; (d) esophagus segmentation; and (e) segmentation refinement. RESULTS The method was applied in a database of 36 CT acquired from 3 different institutes. It achieved the best results in literature so far: Dice coefficient value of 82.15%, Jaccard Index of 70.21%, accuracy of 99.69%, sensitivity of 90.61%, specificity of 99.76%, and Hausdorff Distance of 6.1030 mm. CONCLUSIONS With the achieved results, we were able to show how promising the method is, and that applying it in large medical centers, where esophagus segmentation is still an arduous and challenging task, can be of great help to the specialists.
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Affiliation(s)
| | - Jonnison Lima Ferreira
- Federal University of Maranho, Brazil; Federal Institute of Amazonas - IFAM, Manaus, AM, Brazil
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938
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Eckl M, Hoppen L, Sarria GR, Boda-Heggemann J, Simeonova-Chergou A, Steil V, Giordano FA, Fleckenstein J. Evaluation of a cycle-generative adversarial network-based cone-beam CT to synthetic CT conversion algorithm for adaptive radiation therapy. Phys Med 2020; 80:308-316. [PMID: 33246190 DOI: 10.1016/j.ejmp.2020.11.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 10/29/2020] [Accepted: 11/05/2020] [Indexed: 12/17/2022] Open
Abstract
PURPOSE Image-guided radiation therapy could benefit from implementing adaptive radiation therapy (ART) techniques. A cycle-generative adversarial network (cycle-GAN)-based cone-beam computed tomography (CBCT)-to-synthetic CT (sCT) conversion algorithm was evaluated regarding image quality, image segmentation and dosimetric accuracy for head and neck (H&N), thoracic and pelvic body regions. METHODS Using a cycle-GAN, three body site-specific models were priorly trained with independent paired CT and CBCT datasets of a kV imaging system (XVI, Elekta). sCT were generated based on first-fraction CBCT for 15 patients of each body region. Mean errors (ME) and mean absolute errors (MAE) were analyzed for the sCT. On the sCT, manually delineated structures were compared to deformed structures from the planning CT (pCT) and evaluated with standard segmentation metrics. Treatment plans were recalculated on sCT. A comparison of clinically relevant dose-volume parameters (D98, D50 and D2 of the target volume) and 3D-gamma (3%/3mm) analysis were performed. RESULTS The mean ME and MAE were 1.4, 29.6, 5.4 Hounsfield units (HU) and 77.2, 94.2, 41.8 HU for H&N, thoracic and pelvic region, respectively. Dice similarity coefficients varied between 66.7 ± 8.3% (seminal vesicles) and 94.9 ± 2.0% (lungs). Maximum mean surface distances were 6.3 mm (heart), followed by 3.5 mm (brainstem). The mean dosimetric differences of the target volumes did not exceed 1.7%. Mean 3D gamma pass rates greater than 97.8% were achieved in all cases. CONCLUSIONS The presented method generates sCT images with a quality close to pCT and yielded clinically acceptable dosimetric deviations. Thus, an important prerequisite towards clinical implementation of CBCT-based ART is fulfilled.
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Affiliation(s)
- Miriam Eckl
- Department of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Germany
| | - Lea Hoppen
- Department of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Germany.
| | - Gustavo R Sarria
- Department of Radiology and Radiation Oncology, University Hospital Bonn, Germany
| | - Judit Boda-Heggemann
- Department of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Germany
| | - Anna Simeonova-Chergou
- Department of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Germany
| | - Volker Steil
- Department of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Germany
| | - Frank A Giordano
- Department of Radiology and Radiation Oncology, University Hospital Bonn, Germany
| | - Jens Fleckenstein
- Department of Radiation Oncology, University Medical Center Mannheim, University of Heidelberg, Germany
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939
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Damast S, Felder S, Fields E, Singer L. Feasibility of deploying a U.S. simulation-based gynecological brachytherapy educational workshop to an international setting. Brachytherapy 2020; 19:777-782. [PMID: 33221261 DOI: 10.1016/j.brachy.2020.09.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/24/2020] [Accepted: 09/28/2020] [Indexed: 01/22/2023]
Abstract
PURPOSE A decline in brachytherapy (BT) use for cervical cancer has negatively affected cure rates in the United States and abroad. To improve trainee exposure to BT, a simulation-based educational curriculum incorporating a pelvic mannequin was developed and implemented at several U.S. residency programs. We sought to describe an initial experience with deployment of this curriculum to an international setting. METHODS AND MATERIALS The setting was in Israel, a middle eastern country with cervical cancer incidence of 5-8 cases per 100,000 women. Israel was selected for this pilot because of its desire to increase exposure to trainees, lack of mandatory BT case requirements, and few residencies nationally. In determining the feasibility of deployment to this setting, a partnership was formed between a U.S. and Israeli brachytherapist to understand cultural context and institutional and logistical needs. Feasibility was defined as successful completion of the workshop. Trainee comfort and knowledge with BT was assessed with preworkshop and postworkshop surveys, with changes compared. RESULTS The curriculum was incorporated into a 1-day course on gynecologic malignancies, with adaptation to local setting and routine. Among 15 attendees, eight were residents, from four programs. All completed the workshop. All domains assessed by the surveys improved and all respondents found the program to be helpful. CONCLUSIONS International deployment of the simulation-based educational BT curriculum was feasible and well-received. Further collaboration is needed to deploy and adapt the curriculum to countries of high cervical cancer incidence that could benefit from increased education.
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Affiliation(s)
| | | | - Emma Fields
- Virginia Commonwealth University, Richmond, VA
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940
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Radiation dermatitis assessment tools used in breast cancer: A systematic review of measurement properties. Support Care Cancer 2020; 29:2265-2278. [DOI: 10.1007/s00520-020-05889-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 11/09/2020] [Indexed: 10/23/2022]
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941
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Yang X, Ren H, Guo X, Hu C, Fu J. Radiation-induced skin injury: pathogenesis, treatment, and management. Aging (Albany NY) 2020; 12:23379-23393. [PMID: 33202382 PMCID: PMC7746368 DOI: 10.18632/aging.103932] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 07/30/2020] [Indexed: 12/15/2022]
Abstract
Radiation-induced skin injury (RSI) refers to a frequently occurring complication of radiation therapy. Nearly 90% of patients having received radiation therapy underwent moderate-to-severe skin reactions, severely reducing patients' quality of life and adversely affecting their disease treatment. No gold standard has been formulated for RSIs. In the present study, the mechanism of RSI and topical medications was discussed. Besides, this study can be referenced for clinicians to treat RSIs to guide subsequent clinical medicine.
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Affiliation(s)
- Xiaojing Yang
- Department of Radiation Oncology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Hanru Ren
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University, Pudong Medical Center, Shanghai, China
| | - Xiaomao Guo
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Shanghai Medical College, Fudan University, Shanghai, China
| | - Chaosu Hu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jie Fu
- Department of Radiation Oncology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
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942
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Zhang Q, Li L, Lai Y, Zhao T. Silencing of SPP1 Suppresses Progression of Tongue Cancer by Mediating the PI3K/Akt Signaling Pathway. Technol Cancer Res Treat 2020; 19:1533033820971306. [PMID: 33174521 PMCID: PMC7672768 DOI: 10.1177/1533033820971306] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: In the present study, we aimed to find an effective target for the treatment of tongue cancer using gene chip screening and signal pathway research. Methods: We used microarray screening and gene expression profile analyses to find important differentially expressed genes in tongue cancer. We constructed a protein-protein interaction network, and used enrichment analysis of the Kyoto Encyclopedia of Genes and Genomes to screen for important genes. We then silenced the genes of interest in SCC154 cells to study the relationship with the Phosphatidylinositol 3-kinase/Akt signal pathway. Western blot analyses, the 3-(4,5Dimethylthiazol-yl)-2,5Dimethylthiazol-2-yl)-2,5diphenyltetrazolium bromide (MTT) test, and immunofluorescence assays were used to compare the expression levels of Phosphatidylinositol 3-kinase/Akt signal pathway-related proteins, cell viability, and cell proliferation ability in normal SCC154 cells, Si-RNA SCC154 cells, and gene-silenced SCC154 cells. The scratch test, Transwell test, and western blotting were used to determine migration, invasion, and carcinogenesis. Results: Using GSE9844, GSE13601, and GSE31056 gene chips, we identified 93 upregulated genes and 76 downregulated genes in tongue cancer. Using the protein-protein interaction network and Kyoto Encyclopedia of Genes and Genomes enrichment analyses, we further identified 47 differentially expressed genes. Using Kaplan-Meier plotter online tools, we also identified 3 genes (SPP1, Recombinant Human Secreted Phosphoprotein 1; PLAU, plasminogen activator urinary; and APP, amyloid precursor protein). Compared with normal SCC154 cells and Si-RNA control SCC154 cells, the expressions of Phosphatidylinositol 3-kinase/Akt pathway proteins in si-SPP1 SCC154 cells were significantly decreased (*P < 0.05), and the protein activities and proliferation abilities were also significantly decreased (*P < 0.05), while the migration ability, invasion ability, and cancer forming ability were significantly increased (*P < 0.05). Conclusion: Inhibition of the SPP1 gene may have a therapeutic effect on tongue cancer, and could be an effective target for the treatment of this disorder.
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Affiliation(s)
- Qiaoli Zhang
- Department of Stomatology, The First People's Hospital of Fuyang Hangzhou, Hangzhou, Zhejiang, China
| | - Lifeng Li
- Department of Stomatology, The First People's Hospital of Fuyang Hangzhou, Hangzhou, Zhejiang, China
| | - Yueli Lai
- Department of Stomatology, The First People's Hospital of Fuyang Hangzhou, Hangzhou, Zhejiang, China
| | - Tong Zhao
- Department of Stomatology, The First People's Hospital of Fuyang Hangzhou, Hangzhou, Zhejiang, China
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943
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Figen M, Çolpan Öksüz D, Duman E, Prestwich R, Dyker K, Cardale K, Ramasamy S, Murray P, Şen M. Radiotherapy for Head and Neck Cancer: Evaluation of Triggered Adaptive Replanning in Routine Practice. Front Oncol 2020; 10:579917. [PMID: 33282734 PMCID: PMC7690320 DOI: 10.3389/fonc.2020.579917] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/13/2020] [Indexed: 12/30/2022] Open
Abstract
Purpose and Objective A proportion of patients receiving radiotherapy for head and neck squamous cell carcinoma (HNSCC) require ad hoc treatment re-planning. The aim of this retrospective study is to analyze the patients who required ad hoc re-planning and to identify factors, which may predict need for re-planning. Materials and Methods A single center evaluation of all patients receiving radical or adjuvant (chemo)radiotherapy (CRT) for HNSCC between January and December 2016 was undertaken. Patients who underwent ad hoc re-planning during the treatment were identified in electronic records. Reasons for re-planning were categorized as: weight loss, tumor shrinkage, changes in patient position and immobilization-related factors. Potential trigger factors for adaptive radiotherapy such as patient characteristics, primary tumor site, stage, concomitant chemotherapy, weight loss ratios, radical/adjuvant treatment, and nutritional interventions were investigated. Results 31/290 (10.6%) HNSCC patients who underwent radical/adjuvant radiotherapy required re-planning. The adaptive radiotherapy (ART) was performed at a mean fraction of 15. The most common documented reasons for re-planning were tumor shrinkage (35.5%) and weight loss (35.5%). Among the patient/tumor/treatment factors, nasopharyngeal primary site (p = 0.013) and use of concurrent chemotherapy with radiotherapy (p = 0.034) were found to be significantly correlated with the need for re-planning. Conclusion Effective on-treatment verification schedules and close follow up of patients especially with NPC primary and/or treated with concurrent chemoradiotherapy are crucial to identify patients requiring ART. We suggest an individualized triggered approach to ART rather than scheduled strategies as it is likely to be more feasible in terms of utilization of workload and resources.
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Affiliation(s)
- Metin Figen
- Department of Radiation Oncology Şişli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Didem Çolpan Öksüz
- Department of Radiation Oncology, Cerrahpaşa Faculty of Medicine, Istanbul University-Cerrahpaşa, Istanbul, Turkey
| | - Evrim Duman
- Department of Radiation Oncology Antalya Training and Research Hospital, Antalya, Turkey
| | - Robin Prestwich
- Department of Clinical Oncology, Leeds Cancer Center, St. James's Institute of Oncology, Leeds, United Kingdom
| | - Karen Dyker
- Department of Clinical Oncology, Leeds Cancer Center, St. James's Institute of Oncology, Leeds, United Kingdom
| | - Kate Cardale
- Department of Clinical Oncology, Leeds Cancer Center, St. James's Institute of Oncology, Leeds, United Kingdom
| | - Satiavani Ramasamy
- Department of Clinical Oncology, Leeds Cancer Center, St. James's Institute of Oncology, Leeds, United Kingdom
| | - Patrick Murray
- Department of Clinical Oncology, Leeds Cancer Center, St. James's Institute of Oncology, Leeds, United Kingdom
| | - Mehmet Şen
- Department of Clinical Oncology, Leeds Cancer Center, St. James's Institute of Oncology, Leeds, United Kingdom
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944
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Shahin MA, Al-Dubai SAR, Abdoh DS, Alahmadi AS, Ali AK, Hifnawy T. Burnout among nurses working in the primary health care centers in Saudi Arabia, a multicenter study. AIMS Public Health 2020; 7:844-853. [PMID: 33294486 PMCID: PMC7719557 DOI: 10.3934/publichealth.2020065] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/02/2020] [Indexed: 11/18/2022] Open
Abstract
Background: Burnout is a common psychosocial phenomenon among nursing. It has been attributed to prolonged exposure to stress in the work place. This study aimed to determine the prevalence and associated factors of burnout among nurses in the primary health care centers in Saudi Arabia. Methods: This cross-sectional study was conducted among 200 nurses by using a self-administered questionnaire. Maslach Burnout Inventory-Human Services Survey (MBI-HSS) was used to measure burnout. Results: Most participants were females (73.0%) and aged ≤35 years (52.0%). About 39% had high emotional exhaustion, 38% had high depersonalization and 85.5% had low personal accomplishment. About 89% (178) scored high at least on one subscale of burnout. Burnout was associated with age, educational level and sources of stress in the workplace. Conclusion: Level of burnout among nurses was high and was associated mainly with stressors in the workplace. Improving work environment and management of stress in the workplace should be a priority to minimize burnout among nurses.
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Affiliation(s)
- Mohammed Adeeb Shahin
- Joint Program of Preventive Medicine Post Graduate Studies, Ministry of Health, Al-Madinah 41311, Saudi Arabia
| | - Sami Abdo Radman Al-Dubai
- Joint Program of Preventive Medicine Post Graduate Studies, Ministry of Health, Al-Madinah 41311, Saudi Arabia
| | - Duoaa Seddiq Abdoh
- Joint Program of Preventive Medicine Post Graduate Studies, Ministry of Health, Al-Madinah 41311, Saudi Arabia
| | - Abdullah Saud Alahmadi
- Joint Program of Preventive Medicine Post Graduate Studies, Ministry of Health, Al-Madinah 41311, Saudi Arabia
| | - Ahmed Khalid Ali
- Joint Program of Preventive Medicine Post Graduate Studies, Ministry of Health, Al-Madinah 41311, Saudi Arabia
| | - Tamer Hifnawy
- Medical Education Department, College of Dentistry, Taibah University, Al-Madinah 41311, Saudi Arabia.,Faculty of Medicine, Beni-Suef University, Egypt
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945
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Education and training for image-guided adaptive brachytherapy for cervix cancer—The (GEC)-ESTRO/EMBRACE perspective. Brachytherapy 2020; 19:827-836. [DOI: 10.1016/j.brachy.2020.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 06/09/2020] [Indexed: 11/21/2022]
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946
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Ginex PK, Backler C, Croson E, Horrell LN, Moriarty KA, Maloney C, Vrabel M, Morgan RL. Radiodermatitis in Patients With Cancer: Systematic Review and Meta-Analysis. Oncol Nurs Forum 2020; 47:E225-E236. [PMID: 33063778 DOI: 10.1188/20.onf.e225-e236] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PROBLEM IDENTIFICATION A systematic review and meta-analysis was conducted to inform the development of guidelines on the management of radiodermatitis among patients with cancer. LITERATURE SEARCH The authors updated a systematic review to include available literature published through September 30, 2019. DATA EVALUATION Two investigators assessed risk of bias using the Cochrane Collaboration risk-of-bias tool and certainty of the evidence using the GRADE (Grading of Recommendations Assessment, Development and Evaluation) approach. SYNTHESIS The use of deodorant/antiperspirant had no effect on development of radiodermatitis. Aloe vera and emu oil were equivalent or less effective than standard care. Oral curcumin had a minimal beneficial effect. Nonsteroidal topical interventions had a minimal beneficial effect on the development of moist desquamation and relief of itching while causing a small increase for grade 2 radiodermatitis. Topical calendula increased risk for the development of radiodermatitis. Topical steroids and dressings each showed benefits to minimize the development of radiodermatitis and moist desquamation while lowering rates of patient-reported symptoms, such as pain and pruritus. IMPLICATIONS FOR RESEARCH Symptom management strategies for radiodermatitis among patients with cancer that are likely to be effective include topical nonsteroidals, topical steroids, and dressings. SUPPLEMENTAL MATERIAL CAN BE FOUND AT&NBSP;HTTPS //bit.ly/2FWj3Kp.
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947
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Gosselin T, Ginex PK, Backler C, Bruce SD, Hutton A, Marquez CM, McGee LA, Shaftic AM, Suarez LV, Moriarty KA, Maloney C, Vrabel M, Morgan RL. ONS Guidelines™ for Cancer Treatment-Related Radiodermatitis. Oncol Nurs Forum 2020; 47:654-670. [PMID: 33063779 DOI: 10.1188/20.onf.654-670] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PURPOSE Radiodermatitis is a side effect of radiation therapy. Evidence-based interventions to minimize severity or delay progression are important for clinical care. This guideline intends to support individuals with cancer, clinicians, and others in decisions regarding radiodermatitis treatment. METHODOLOGIC APPROACH A panel of healthcare professionals with patient representation was convened to develop a national clinical practice guideline for the management of radiodermatitis. GRADE (Grading of Recommendations Assessment, Development and Evaluation) methodology and the National Academies of Sciences, Engineering, and Medicine criteria for trustworthy guidelines were followed. The Cochrane Collaboration risk-of-bias tool was used, and certainty of the evidence was assessed using the GRADE approach. A quantitative and narrative synthesis of the evidence was completed. FINDINGS The panel agreed on eight recommendations and made a conditional recommendation for deodorant/antiperspirant. Aloe vera and oral curcumin had knowledge gaps and were recommended only in the context of a clinical trial. The panel suggested against emu oil, calendula, and nonsteroidal interventions. IMPLICATIONS FOR NURSING This guideline summarizes evidence-based interventions for the management of radiodermatitis to guide clinical care. SUPPLEMENTARY MATERIAL CAN BE FOUND AT&NBSP;HTTPS //bit.ly/2GEwJtT.
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948
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Placidi L, Cusumano D, Boldrini L, Votta C, Pollutri V, Antonelli MV, Chiloiro G, Romano A, De Luca V, Catucci F, Indovina L, Valentini V. Quantitative analysis of MRI-guided radiotherapy treatment process time for tumor real-time gating efficiency. J Appl Clin Med Phys 2020; 21:70-79. [PMID: 33089954 PMCID: PMC7701108 DOI: 10.1002/acm2.13030] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/13/2020] [Accepted: 09/08/2020] [Indexed: 12/11/2022] Open
Abstract
PURPOSE Magnetic Resonance-guided radiotherapy (MRgRT) systems allow continuous monitoring of therapy volumes during treatment delivery and personalized respiratory gating approaches. Treatment length may therefore be significantly affected by patient's compliance and breathing control. We quantitatively analyzed treatment process time efficiency (TE ) using data obtained from real-world patient treatment logs to optimize MRgRT delivery settings. METHODS Data corresponding to the first 100 patients treated with a low T hybrid MRI-Linac system, both in free breathing (FB) and in breath hold inspiration (BHI) were collected. TE has been computed as the percentage difference of the actual single fraction's total treatment time and the predicted treatment process time, as computed by the TPS during plan optimization. Differences between the scheduled and actual treatment room occupancy time were also evaluated. Finally, possible correlations with planning, delivery and clinical parameters with TE were also investigated. RESULTS Nine hundred and nineteen treatment fractions were evaluated. TE difference between BHI and FB patients' groups was statistically significant and the mean TE were 42.4%, and -0.5% respectively. No correlation was found with TE for BHI and FB groups. Planning, delivering and clinical parameters classified BHI and FB groups, but no correlation with TE was found. CONCLUSION The use of BHI gating technique can increase the treatment process time significantly. BHI technique could be not always an adequate delivery technique to optimize the treatment process time. Further gating techniques should be considered to improve the use of MRgRT.
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Affiliation(s)
- Lorenzo Placidi
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy
- Università Cattolica del Sacro Cuore, Rome, Italy
| | - Davide Cusumano
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy
| | - Luca Boldrini
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy
- Università Cattolica del Sacro Cuore, Rome, Italy
| | - Claudio Votta
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy
| | - Veronica Pollutri
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy
| | - Marco Valerio Antonelli
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy
| | - Giuditta Chiloiro
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy
| | - Angela Romano
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy
| | - Viola De Luca
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy
| | - Francesco Catucci
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy
| | - Luca Indovina
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy
| | - Vincenzo Valentini
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, UOC Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy
- Università Cattolica del Sacro Cuore, Rome, Italy
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949
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Hunt A, Hanson I, Dunlop A, Barnes H, Bower L, Chick J, Cruickshank C, Hall E, Herbert T, Lawes R, McQuaid D, McNair H, Mitchell A, Mohajer J, Morgan T, Oelfke U, Smith G, Nill S, Huddart R, Hafeez S. Feasibility of magnetic resonance guided radiotherapy for the treatment of bladder cancer. Clin Transl Radiat Oncol 2020; 25:46-51. [PMID: 33015380 PMCID: PMC7522378 DOI: 10.1016/j.ctro.2020.09.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 09/03/2020] [Accepted: 09/06/2020] [Indexed: 12/15/2022] Open
Abstract
Whole bladder magnetic resonance image-guided radiotherapy using the 1.5 Telsa MR-linac is feasible. Full online adaptive planning workflow based on the anatomy seen at each fraction was performed. This was delivered within 45 min. Intra-fraction bladder filling did not compromise target coverage. Patients reported acceptable tolerance of treatment.
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Affiliation(s)
- A. Hunt
- The Institute of Cancer Research, London, UK
- The Royal Marsden NHS Foundation Trust, London, UK
| | - I. Hanson
- The Joint Department of Physics at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, London, UK
| | - A. Dunlop
- The Joint Department of Physics at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, London, UK
| | - H. Barnes
- The Royal Marsden NHS Foundation Trust, London, UK
| | - L. Bower
- The Institute of Cancer Research, London, UK
- The Royal Marsden NHS Foundation Trust, London, UK
| | - J. Chick
- The Joint Department of Physics at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, London, UK
| | - C. Cruickshank
- Clinical Trials and Statistics Unit, The Institute of Cancer Research, London, UK
| | - E. Hall
- Clinical Trials and Statistics Unit, The Institute of Cancer Research, London, UK
| | - T. Herbert
- The Royal Marsden NHS Foundation Trust, London, UK
| | - R. Lawes
- The Royal Marsden NHS Foundation Trust, London, UK
| | - D. McQuaid
- The Joint Department of Physics at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, London, UK
| | - H. McNair
- The Institute of Cancer Research, London, UK
- The Royal Marsden NHS Foundation Trust, London, UK
| | - A. Mitchell
- The Joint Department of Physics at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, London, UK
| | - J. Mohajer
- The Joint Department of Physics at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, London, UK
| | - T. Morgan
- The Institute of Cancer Research, London, UK
- The Royal Marsden NHS Foundation Trust, London, UK
| | - U. Oelfke
- The Joint Department of Physics at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, London, UK
| | - G. Smith
- The Royal Marsden NHS Foundation Trust, London, UK
| | - S. Nill
- The Joint Department of Physics at The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, London, UK
| | - R. Huddart
- The Institute of Cancer Research, London, UK
- The Royal Marsden NHS Foundation Trust, London, UK
| | - S. Hafeez
- The Institute of Cancer Research, London, UK
- The Royal Marsden NHS Foundation Trust, London, UK
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950
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Kumari S, Mukherjee S, Sinha D, Abdisalaam S, Krishnan S, Asaithamby A. Immunomodulatory Effects of Radiotherapy. Int J Mol Sci 2020; 21:E8151. [PMID: 33142765 PMCID: PMC7663574 DOI: 10.3390/ijms21218151] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/22/2020] [Accepted: 10/26/2020] [Indexed: 02/07/2023] Open
Abstract
Radiation therapy (RT), an integral component of curative treatment for many malignancies, can be administered via an increasing array of techniques. In this review, we summarize the properties and application of different types of RT, specifically, conventional therapy with x-rays, stereotactic body RT, and proton and carbon particle therapies. We highlight how low-linear energy transfer (LET) radiation induces simple DNA lesions that are efficiently repaired by cells, whereas high-LET radiation causes complex DNA lesions that are difficult to repair and that ultimately enhance cancer cell killing. Additionally, we discuss the immunogenicity of radiation-induced tumor death, elucidate the molecular mechanisms by which radiation mounts innate and adaptive immune responses and explore strategies by which we can increase the efficacy of these mechanisms. Understanding the mechanisms by which RT modulates immune signaling and the key players involved in modulating the RT-mediated immune response will help to improve therapeutic efficacy and to identify novel immunomodulatory drugs that will benefit cancer patients undergoing targeted RT.
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Affiliation(s)
- Sharda Kumari
- Division of Molecular Radiation Biology, Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (S.K.); (D.S.); (S.A.)
| | - Shibani Mukherjee
- Division of Molecular Radiation Biology, Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (S.K.); (D.S.); (S.A.)
| | - Debapriya Sinha
- Division of Molecular Radiation Biology, Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (S.K.); (D.S.); (S.A.)
| | - Salim Abdisalaam
- Division of Molecular Radiation Biology, Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (S.K.); (D.S.); (S.A.)
| | - Sunil Krishnan
- Department of Radiation Oncology, Mayo Clinic Florida, Jacksonville, FL 32224, USA;
| | - Aroumougame Asaithamby
- Division of Molecular Radiation Biology, Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (S.K.); (D.S.); (S.A.)
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