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Alkner S, Wieslander E, Lundstedt D, Berg M, Kristensen I, Andersson Y, Bergkvist L, Frisell J, Olofsson Bagge R, Sund M, Christiansen P, Davide Gentilini O, Kontos M, Kühn T, Reimer T, Rydén L, Filtenborg Tvedskov T, Vrou Offersen B, Dahl Nissen H, de Boniface J. Quality assessment of radiotherapy in the prospective randomized SENOMAC trial. Radiother Oncol 2024; 197:110372. [PMID: 38866204 DOI: 10.1016/j.radonc.2024.110372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/15/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
BACKGROUND AND PURPOSE Recommendations for regional radiotherapy (RT) of sentinel lymph node (SLN)-positive breast cancer are debated. We here report a RT quality assessment of the SENOMAC trial. MATERIALS AND METHODS The SENOMAC trial randomized clinically node-negative breast cancer patients with 1-2 SLN macrometastases to completion axillary lymph node dissection (cALND) or SLN biopsy only between 2015-2021. Adjuvant RT followed national guidelines. RT plans for patients included in Sweden and Denmark until June 2019 were collected (N = 1176) and compared to case report forms (CRF). Dose to level I (N = 270) and the humeral head (N = 321) was analyzed in detail. RESULTS CRF-data and RT plans agreed in 99.3 % (breast/chest wall) and in 96.6 % of patients (regional RT). Congruence for whether level I was an intended RT target was lower (78 %). In accordance with Danish national guidelines, level I was more often an intended target in the SLN biopsy only arm (N = 334/611, 55 %,) than in the cALND arm (N = 174/565, 31 %,). When an intended target, level I received prescribed dose to 100 % (IQR 98-100 %) of the volume. However, even when not an intended target, full dose was delivered to > 80 % of level I (IQR 75-90 %). The intentional inclusion of level I in the target volume more than doubled the dose received by ≥ 50 % of the humeral head. CONCLUSION Congruence between CRF data and RT plans was excellent. Level I received a high dose coverage even when not intentionally included in the target. Including level I in target significantly increased dose to the humeral head.
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Affiliation(s)
- Sara Alkner
- Department of Oncology, Faculty of Medicine, Institute of Clinical Sciences Lund, Lund University, Lund, Sweden; Skåne University Hospital Lund, Department of Hematology, Oncology and Radiation Physics, Lund, Sweden.
| | - Elinore Wieslander
- Skåne University Hospital Lund, Department of Hematology, Oncology and Radiation Physics, Lund, Sweden
| | - Dan Lundstedt
- Department of Oncology, Institute of Clinical Sciences, Sahlgrenska Academy at Gothenburg University, Gothenburg, Sweden; Department of Oncology at Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Martin Berg
- Department of Oncology, Vejle Hospital, University Hospital of Southern Denmark, Vejle, Denmark
| | - Ingrid Kristensen
- Skåne University Hospital Lund, Department of Hematology, Oncology and Radiation Physics, Lund, Sweden
| | - Yvette Andersson
- Department of Surgery, Vastmanland Hospital Vasteras, Vasteras, Sweden; Centre for Clinical Research, Uppsala University and Region Vastmanland, Vastmanland Hospital Vasteras, Sweden
| | - Leif Bergkvist
- Centre for Clinical Research, Uppsala University and Region Vastmanland, Vastmanland Hospital Vasteras, Sweden
| | - Jan Frisell
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Breast Center Karolinska, Karolinska Comprehensive Cancer Center, Karolinska University Hospital, Stockholm, Sweden
| | - Roger Olofsson Bagge
- Sahlgrenska Center for Cancer Research, Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden; Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Malin Sund
- Department of Surgery, University of Helsinki and Helsinki University Hospital, Finland; Department of Diagnostics and Intervention/ Surgery, Umeå University, Sweden
| | - Peer Christiansen
- Department of Plastic and Breast Surgery, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Oreste Davide Gentilini
- Breast Surgery, IRCCS Ospedale San Raffaele, Milano, Italy; Vita-Salute San Raffaele University, Milano, Italy
| | - Michalis Kontos
- 1st Department of Surgery, National and Kapodistrian University of Athens, Athens, Greece
| | - Thorsten Kühn
- Die Filderklinik, Breast Center, Filderstadt, Germany; Department of Gynecology and Obstetrics, University of Ulm, Germany
| | - Toralf Reimer
- Department of Obstetrics and Gynecology, University of Rostock, Rostock, Germany
| | - Lisa Rydén
- Department of Oncology, Faculty of Medicine, Institute of Clinical Sciences Lund, Lund University, Lund, Sweden; Skåne University Hospital , Department of Gastroenterology and Surgery, Malmö, Sweden
| | - Tove Filtenborg Tvedskov
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Department of Breast Surgery, Gentofte Hospital, Gentofte, Denmark
| | - Birgitte Vrou Offersen
- Department of Oncology, Aarhus University Hospital, Aarhus University, Aarhus, Denmark; Department of Experimental Clinical Oncology, Danish Center for Particle Therapy, Aarhus, Denmark
| | - Henrik Dahl Nissen
- Department of Oncology, Vejle Hospital, University Hospital of Southern Denmark, Vejle, Denmark
| | - Jana de Boniface
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Department of Surgery, Capio St. Goran's Hospital, Stockholm, Sweden
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Salvestrini V, Valzano M, Meattini I, Becherini C, Visani L, Francolini G, Morelli I, Bertini N, Orzalesi L, Bernini M, Bianchi S, Simontacchi G, Livi L, Desideri I. Anatomical assessment of local recurrence site in breast cancer patients after breast reconstruction and post-mastectomy radiotherapy: implications for radiation volumes and techniques. LA RADIOLOGIA MEDICA 2024; 129:845-854. [PMID: 38602657 PMCID: PMC11168998 DOI: 10.1007/s11547-024-01812-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 03/19/2024] [Indexed: 04/12/2024]
Abstract
INTRODUCTION Post-mastectomy radiotherapy (PMRT) improves local control rates and survival in patients with adverse prognostic features. The dose coverage to target volumes is critical to yield maximum benefit to treated patients, increasing local control and reducing risk of toxicity. This study aims to assess patterns of breast cancer relapse in patients treated with mastectomy, breast reconstruction and PMRT. METHODS Breast cancer patients treated with PMRT between 1992 and 2017 were retrospectively reviewed. Clinical and pathological characteristics of patients were collected. Recurrences were defined as "in field," "marginal" or "out of field." Survival analyses were performed in relation to progression-free survival (PFS) and overall survival (OS). Correlation between baseline features was explored. RESULTS Data of 140 patients are collected. After a median follow-up time of 72 months, median PFS and OS of 63 and 74 months were detected, respectively. Neoadjuvant chemotherapy, lympho-vascular space invasion (LVI) and size of primary tumor were all significantly associated with worst PFS and OS. Ten patients developed local recurrence: 30% "in field," 30% marginal recurrences, 20% "out of field" and 20% both "in field" and "out of field." No recurrence was detected under the expander, 80% above the device and 20% patients relapsed on IMN chain. The mean distant relapse-free survival was 39 months. Overall, 39 of 140 patients developed distant metastases. CONCLUSIONS The onset of local-regional relapses occurred mainly above the expander/prosthesis, underlying the importance of inclusion of the subcutaneous tissues within the target volume. In order to refine new contouring recommendations for PMRT and breast reconstruction, future prospective studies are needed.
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Affiliation(s)
- Viola Salvestrini
- Radiation Oncology Unit, Oncology Department, Careggi University Hospital, Viale Morgagni 85, 50134, Florence, Italy.
| | - Marianna Valzano
- Radiation Oncology Unit, Oncology Department, Careggi University Hospital, Viale Morgagni 85, 50134, Florence, Italy
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, Florence, Italy
| | - Icro Meattini
- Radiation Oncology Unit, Oncology Department, Careggi University Hospital, Viale Morgagni 85, 50134, Florence, Italy
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, Florence, Italy
| | - Carlotta Becherini
- Radiation Oncology Unit, Oncology Department, Careggi University Hospital, Viale Morgagni 85, 50134, Florence, Italy
| | - Luca Visani
- Radiation Oncology Unit, Oncology Department, Careggi University Hospital, Viale Morgagni 85, 50134, Florence, Italy
| | - Giulio Francolini
- Radiation Oncology Unit, Oncology Department, Careggi University Hospital, Viale Morgagni 85, 50134, Florence, Italy
| | - Ilaria Morelli
- Radiation Oncology Unit, Oncology Department, Careggi University Hospital, Viale Morgagni 85, 50134, Florence, Italy
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, Florence, Italy
| | - Niccolò Bertini
- Radiation Oncology Unit, Oncology Department, Careggi University Hospital, Viale Morgagni 85, 50134, Florence, Italy
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, Florence, Italy
| | - Lorenzo Orzalesi
- Breast Surgery Unit, Careggi University Hospital, Florence, Italy
| | - Marco Bernini
- Breast Surgery Unit, Careggi University Hospital, Florence, Italy
| | - Simonetta Bianchi
- Division of Pathological Anatomy, Department of Health Sciences, University of Florence, Florence, Italy
| | - Gabriele Simontacchi
- Radiation Oncology Unit, Oncology Department, Careggi University Hospital, Viale Morgagni 85, 50134, Florence, Italy
| | - Lorenzo Livi
- Radiation Oncology Unit, Oncology Department, Careggi University Hospital, Viale Morgagni 85, 50134, Florence, Italy
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, Florence, Italy
| | - Isacco Desideri
- Radiation Oncology Unit, Oncology Department, Careggi University Hospital, Viale Morgagni 85, 50134, Florence, Italy
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, Florence, Italy
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Skarsø ER, Refsgaard L, Saini A, Sloth Møller D, Lorenzen EL, Maae E, Andersen K, Maraldo MV, Milo ML, Nyeng TB, Vrou Offersen B, Korreman SS. Development of a national deep learning-based auto-segmentation model for the heart on clinical delineations from the DBCG RT nation cohort. Acta Oncol 2023; 62:1201-1207. [PMID: 37712509 DOI: 10.1080/0284186x.2023.2252582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 08/16/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND This study aimed at investigating the feasibility of developing a deep learning-based auto-segmentation model for the heart trained on clinical delineations. MATERIAL AND METHODS This study included two different datasets. The first dataset contained clinical heart delineations from the DBCG RT Nation study (1,561 patients). The second dataset was smaller (114 patients), but with corrected heart delineations. Before training the model on the clinical delineations an outlier-detection was performed, to remove cases with gross deviations from the delineation guideline. No outlier detection was performed for the dataset with corrected heart delineations. Both models were trained with a 3D full resolution nnUNet. The models were evaluated with the dice similarity coefficient (DSC), 95% Hausdorff distance (HD95) and Mean Surface Distance (MSD). The difference between the models were tested with the Mann-Whitney U-test. The balance of dataset quantity versus quality was investigated, by stepwise reducing the cohort size for the model trained on clinical delineations. RESULTS During the outlier-detection 137 patients were excluded from the clinical cohort due to non-compliance with delineation guidelines. The model trained on the curated clinical cohort performed with a median DSC of 0.96 (IQR 0.94-0.96), median HD95 of 4.00 mm (IQR 3.00 mm-6.00 mm) and a median MSD of 1.49 mm (IQR 1.12 mm-2.02 mm). The model trained on the dedicated and corrected cohort performed with a median DSC of 0.95 (IQR 0.93-0.96), median HD95 of 5.65 mm (IQR 3.37 mm-8.62 mm) and median MSD of 1.63 mm (IQR 1.35 mm-2.11 mm). The difference between the two models were found non-significant for all metrics (p > 0.05). Reduction of cohort size showed no significant difference for all metrics (p > 0.05). However, with the smallest cohort size, a few outlier structures were found. CONCLUSIONS This study demonstrated a deep learning-based auto-segmentation model trained on curated clinical delineations which performs on par with a model trained on dedicated delineations, making it easier to develop multi-institutional auto-segmentation models.
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Affiliation(s)
- Emma Riis Skarsø
- Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical medicine, Aarhus University, Aarhus, Denmark
| | - Lasse Refsgaard
- Department of Clinical medicine, Aarhus University, Aarhus, Denmark
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Abhilasha Saini
- Department of Clinical Oncology and Palliative Care, Zealand University Hospital, Næstved, Denmark
| | - Ditte Sloth Møller
- Department of Clinical medicine, Aarhus University, Aarhus, Denmark
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Ebbe Laugaard Lorenzen
- Laboratory of Radiation Physics, Department of Oncology, Odense University Hospital, Odense, Denmark
| | - Else Maae
- Department of Oncology, Vejle Hospital, University Hospital of Southern Denmark, Vejle, Denmark
| | - Karen Andersen
- Department of Oncology, Herlev and Gentofte Hospital, Herlev, Denmark
| | - Maja Vestmø Maraldo
- Department of Clinical Oncology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Marie Louise Milo
- Department of Oncology, Aalborg University Hospital, Aalborg, Denmark
| | | | - Birgitte Vrou Offersen
- Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical medicine, Aarhus University, Aarhus, Denmark
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Stine Sofia Korreman
- Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical medicine, Aarhus University, Aarhus, Denmark
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
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Welgemoed C, Spezi E, Riddle P, Gooding MJ, Gujral D, McLauchlan R, Aboagye EO. Clinical evaluation of atlas-based auto-segmentation in breast and nodal radiotherapy. Br J Radiol 2023; 96:20230040. [PMID: 37493138 PMCID: PMC10461279 DOI: 10.1259/bjr.20230040] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 06/23/2023] [Accepted: 06/28/2023] [Indexed: 07/27/2023] Open
Abstract
OBJECTIVES Accurate contouring of anatomical structures allows for high-precision radiotherapy planning, targeting the dose at treatment volumes and avoiding organs at risk. Manual contouring is time-consuming with significant user variability, whereas auto-segmentation (AS) has proven efficiency benefits but requires editing before treatment planning. This study investigated whether atlas-based AS (ABAS) accuracy improves with template atlas group size and character-specific atlas and test case selection. METHODS AND MATERIALS One clinician retrospectively contoured the breast, nodes, lung, heart, and brachial plexus on 100 CT scans, adhering to peer-reviewed guidelines. Atlases were clustered in group sizes, treatment positions, chest wall separations, and ASs created with Mirada software. The similarity of ASs compared to reference contours was described by the Jaccard similarity coefficient (JSC) and centroid distance variance (CDV). RESULTS Across group sizes, for all structures combined, the mean JSC was 0.6 (SD 0.3, p = .999). Across atlas-specific groups, 0.6 (SD 0.3, p = 1.000). The correlation between JSC and structure volume was weak in both scenarios (adjusted R2-0.007 and 0.185).Mean CDV was similar across groups but varied up to 1.2 cm for specific structures. CONCLUSIONS Character-specific atlas groups and test case selection did not improve accuracy outcomes. High-quality ASs were obtained from groups containing as few as ten atlases, subsequently simplifying the application of ABAS. CDV measures indicating auto-segmentation variations on the x, y, and z axes can be utilised to decide on the clinical relevance of variations and reduce AS editing. ADVANCES IN KNOWLEDGE High-quality ABASs can be obtained from as few as ten template atlases.Atlas and test case selection do not improve AS accuracy.Unlike well-known quantitative similarity indices, volume displacement metrics provide information on the location of segmentation variations, helping assessment of the clinical relevance of variations and reducing clinician editing. Volume displacement metrics combined with the qualitative measure of clinician assessment could reduce user variability.
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Affiliation(s)
| | - Emiliano Spezi
- School of Engineering, Cardiff University, Cardiff, United Kingdom
| | - Pippa Riddle
- Radiotherapy Department, Imperial College Healthcare NHS Trust, Charing Cross Hospital, London, United Kingdom
| | | | | | | | - Eric O Aboagye
- Department of Surgery and Cancer, Imperial College London, Hammersmith Campus, London, United Kingdom
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Refsgaard L, Skarsø ER, Ravkilde T, Nissen HD, Olsen M, Boye K, Laursen KL, Bekke SN, Lorenzen EL, Brink C, Thorsen LBJ, Offersen BV, Korreman SS. End-to-end framework for automated collection of large multicentre radiotherapy datasets demonstrated in a Danish Breast Cancer Group cohort. Phys Imaging Radiat Oncol 2023; 27:100485. [PMID: 37705727 PMCID: PMC10495662 DOI: 10.1016/j.phro.2023.100485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/18/2023] [Accepted: 08/18/2023] [Indexed: 09/15/2023] Open
Abstract
Large Digital Imaging and Communications in Medicine (DICOM) datasets are key to support research and the development of machine learning technology in radiotherapy (RT). However, the tools for multi-centre data collection, curation and standardisation are not readily available. Automated batch DICOM export solutions were demonstrated for a multicentre setup. A Python solution, Collaborative DICOM analysis for RT (CORDIAL-RT) was developed for curation, standardisation, and analysis of the collected data. The setup was demonstrated in the DBCG RT-Nation study, where 86% (n = 7748) of treatments in the inclusion period were collected and quality assured, supporting the applicability of the end-to-end framework.
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Affiliation(s)
- Lasse Refsgaard
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Emma Riis Skarsø
- Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Thomas Ravkilde
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Henrik Dahl Nissen
- Department of Oncology, Vejle Hospital, University Hospital of Southern Denmark, Denmark
| | - Mikael Olsen
- Department of Oncology, Zealand University Hospital, Department of Clinical Oncology and Palliative Care, Næstved, Denmark
| | - Kristian Boye
- Department of Oncology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Kasper Lind Laursen
- Department of Medical Physics, Aalborg University Hospital, Aalborg, Denmark
| | - Susanne Nørring Bekke
- Department of Oncology, Copenhagen University Hospital – Herlev and Gentofte, Copenhagen, Denmark
| | - Ebbe Laugaard Lorenzen
- Laboratory of Radiation Physics, Department of Oncology, Odense University Hospital, Odense, Denmark
| | - Carsten Brink
- Laboratory of Radiation Physics, Department of Oncology, Odense University Hospital, Odense, Denmark
| | - Lise Bech Jellesmark Thorsen
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Denmark
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Birgitte Vrou Offersen
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Denmark
- Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Stine Sofia Korreman
- Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Bakx N, van der Sangen M, Theuws J, Bluemink H, Hurkmans C. Comparison of the output of a deep learning segmentation model for locoregional breast cancer radiotherapy trained on 2 different datasets. Tech Innov Patient Support Radiat Oncol 2023; 26:100209. [PMID: 37213441 PMCID: PMC10199413 DOI: 10.1016/j.tipsro.2023.100209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/06/2023] [Accepted: 05/09/2023] [Indexed: 05/23/2023] Open
Abstract
Introduction The development of deep learning (DL) models for auto-segmentation is increasing and more models become commercially available. Mostly, commercial models are trained on external data. To study the effect of using a model trained on external data, compared to the same model trained on in-house collected data, the performance of these two DL models was evaluated. Methods The evaluation was performed using in-house collected data of 30 breast cancer patients. Quantitative analysis was performed using Dice similarity coefficient (DSC), surface DSC (sDSC) and 95th percentile of Hausdorff Distance (95% HD). These values were compared with previously reported inter-observer variations (IOV). Results For a number of structures, statistically significant differences were found between the two models. For organs at risk, mean values for DSC ranged from 0.63 to 0.98 and 0.71 to 0.96 for the in-house and external model, respectively. For target volumes, mean DSC values of 0.57 to 0.94 and 0.33 to 0.92 were found. The difference of 95% HD values ranged 0.08 to 3.23 mm between the two models, except for CTVn4 with 9.95 mm. For the external model, both DSC and 95% HD are outside the range of IOV for CTVn4, whereas this is the case for the DSC found for the thyroid of the in-house model. Conclusions Statistically significant differences were found between both models, which were mostly within published inter-observer variations, showing clinical usefulness of both models. Our findings could encourage discussion and revision of existing guidelines, to further decrease inter-observer, but also inter-institute variability.
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Affiliation(s)
- Nienke Bakx
- Catharina Hospital, Department of Radiation Oncology, 5602ZA Eindhoven, the Netherlands
| | | | - Jacqueline Theuws
- Catharina Hospital, Department of Radiation Oncology, 5602ZA Eindhoven, the Netherlands
| | - Hanneke Bluemink
- Catharina Hospital, Department of Radiation Oncology, 5602ZA Eindhoven, the Netherlands
| | - Coen Hurkmans
- Catharina Hospital, Department of Radiation Oncology, 5602ZA Eindhoven, the Netherlands
- Technical University Eindhoven, Faculties of Physics and Electrical Engineering, 5600MB Eindhoven, the Netherlands
- Corresponding author at: Catharina Hospital, Department of Radiation Oncology, 5602ZA Eindhoven, the Netherlands.
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Almberg SS, Lervåg C, Frengen J, Eidem M, Abramova T, Nordstrand C, Alsaker M, Tøndel H, Raj SX, Wanderås AD. Training, validation, and clinical implementation of a deep-learning segmentation model for radiotherapy of loco-regional breast cancer. Radiother Oncol 2022; 173:62-68. [DOI: 10.1016/j.radonc.2022.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/07/2022] [Accepted: 05/18/2022] [Indexed: 11/29/2022]
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Leonardi MC, Pepa M, Luraschi R, Vigorito S, Dicuonzo S, Isaksson LJ, La Porta MR, Marino L, Ippolito E, Huscher A, Argenone A, De Rose F, Cucciarelli F, De Santis MC, Rossi F, Prisco A, Guarnaccia R, de Fatis PT, Palumbo I, Colangione SP, Mormile M, Ravo V, Fozza A, Aristei C, Orecchia R, Cattani F, Jereczek-Fossa BA. The dosimetric impact of axillary nodes contouring variability in breast cancer radiotherapy: an AIRO multi-institutional study. Radiother Oncol 2022; 168:113-120. [PMID: 35033602 DOI: 10.1016/j.radonc.2022.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 01/03/2022] [Accepted: 01/04/2022] [Indexed: 12/01/2022]
Abstract
AIM To quantify the dosimetric impact of contouring variability of axillary lymph nodes (L2, L3, L4) in breast cancer (BC) locoregional radiotherapy (RT). MATERIALS AND METHODS 18 RT centres were asked to plan a locoregional treatment on their own planning target volume (single centre, SC-PTV) which was created by applying their institutional margins to the clinical target volume of the axillary nodes of three BC patients (P1, P2, P3) previously delineated (SC-CTV). The gold standard CTVs (GS-CTVs) of P1, P2 and P3 were developed by BC experts' consensus and validated with STAPLE algorithm. For each participating centre, the GS-PTV of each patient was created by applying the same margins as those used for the SC-CTV to SC-PTV expansion and replaced the SC-PTV in the treatment plan. Datasets were imported into MIM v6.1.7 [MIM Software Inc.], where dose-volume histograms (DVHs) were extracted and differences were analysed. RESULTS 17/18 centres used intensity-modulated RT (IMRT). The CTV to PTV margins ranged from 0 to 10 mm (median 5 mm). No correlation was observed between GS-CTV coverage by 95% isodose and GS-PTV margins width. Doses delivered to 98% (D98) and 95% (D95) of GS-CTVs were significantly lower than those delivered to the SC-CTVs. No significant difference between SC-CTV and GS-CTV was observed in maximum dose (D2), always under 110%. Mean dose ≥ 99% of the SC-CTVs and GS-CTVs was satisfied in 84% and 50%, respectively. In less than one half of plans, GS-CTV V95% was above 90%. Breaking down the GS-CTV into the three nodal levels (L2, L3 and L4), L4 had the lowest probability to be covered by the 95% isodose. CONCLUSIONS Overall, GS-CTV resulted worse coverage, especially for L4. IMRT was largely used and CTV-to-PTV margins did not compensate for contouring issues. The results highlighted the need for delineation training and standardization.
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Affiliation(s)
| | - Matteo Pepa
- Division of Radiation Oncology, IEO, Istituto Europeo di Oncologia, IRCCS, Milano, Italy
| | - Rosa Luraschi
- Unit of Medical Physics, IEO, Istituto Europeo di Oncologia, IRCCS, Milano, Italy
| | - Sabrina Vigorito
- Unit of Medical Physics, IEO, Istituto Europeo di Oncologia, IRCCS, Milano, Italy
| | - Samantha Dicuonzo
- Division of Radiation Oncology, IEO, Istituto Europeo di Oncologia, IRCCS, Milano, Italy.
| | - Lars Johannes Isaksson
- Division of Radiation Oncology, IEO, Istituto Europeo di Oncologia, IRCCS, Milano, Italy
| | | | - Lorenza Marino
- Radiotherapy Unit, REM Radioterapia, Viagrande, (CT), Italy
| | - Edy Ippolito
- Department of Radiotherapy, Campus Bio-Medico University, Roma, Italy
| | | | - Angela Argenone
- Division of Radiation Oncology, Azienda Ospedaliera di Rilievo Nazionale San Pio, Benevento, Italy
| | - Fiorenza De Rose
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Centre IRCCS, Milano, Italy
| | - Francesca Cucciarelli
- Department of Internal Medicine, Radiotherapy Institute, Ospedali Riuniti Umberto I, G.M. Lancisi, G. Salesi, Ancona, Italy
| | - Maria Carmen De Santis
- Radiotherapy Unit 1, Fondazione IRCCS Istituto Nazionale dei Tumori (INT), Milano, Italy
| | - Francesca Rossi
- Radiotherapy Unit, Usl Toscana Centro, Ospedale Santa Maria Annunziata, Firenze, Italy
| | - Agnese Prisco
- Department of Radiotherapy, Azienda Sanitaria Universitaria Friuli Centrale, Udine, Italy
| | - Roberta Guarnaccia
- Radiotherapy Unit, Ospedale Fatebenefratelli Isola Tiberina, Roma, Italy
| | | | - Isabella Palumbo
- Radiation Oncology Section, University of Perugia and Perugia General Hospital, Perugia, Italy
| | - Sarah Pia Colangione
- Radiotherapy Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Maria Mormile
- Unit of Medical Physics, ASL Napoli 1 Centro - Ospedale del Mare, Napoli, Italy
| | - Vincenzo Ravo
- Unit of Radiotherapy, Istituto Nazionale Tumori - IRCCS - Fondazione G. Pascale, Napoli, Italy
| | - Alessandra Fozza
- Division of Radiation Oncology, Azienda Ospedaliera Nazionale SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
| | - Cynthia Aristei
- Radiation Oncology Section, University of Perugia and Perugia General Hospital, Perugia, Italy
| | - Roberto Orecchia
- Scientific Direction, IEO, Istituto Europeo di Oncologia, IRCCS, Milano, Italy
| | - Federica Cattani
- Unit of Medical Physics, IEO, Istituto Europeo di Oncologia, IRCCS, Milano, Italy
| | - Barbara Alicja Jereczek-Fossa
- Division of Radiation Oncology, IEO, Istituto Europeo di Oncologia, IRCCS, Milano, Italy; Department of Oncology and Hemato-Oncology, University of Milan, Milano, Italy
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- Division of Radiation Oncology, IEO, Istituto Europeo di Oncologia, IRCCS, Milano, Italy; Department of Oncology and Hemato-Oncology, University of Milan, Milano, Italy
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9
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Meattini I, Becherini C, Boersma L, Kaidar-Person O, Marta GN, Montero A, Offersen BV, Aznar MC, Belka C, Brunt AM, Dicuonzo S, Franco P, Krause M, MacKenzie M, Marinko T, Marrazzo L, Ratosa I, Scholten A, Senkus E, Stobart H, Poortmans P, Coles CE. European Society for Radiotherapy and Oncology Advisory Committee in Radiation Oncology Practice consensus recommendations on patient selection and dose and fractionation for external beam radiotherapy in early breast cancer. Lancet Oncol 2022; 23:e21-e31. [PMID: 34973228 DOI: 10.1016/s1470-2045(21)00539-8] [Citation(s) in RCA: 116] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/08/2021] [Accepted: 09/08/2021] [Indexed: 12/17/2022]
Abstract
High-quality randomised clinical trials testing moderately fractionated breast radiotherapy have clearly shown that local control and survival is at least as effective as with 2 Gy daily fractions with similar or reduced normal tissue toxicity. Fewer treatment visits are welcomed by patients and their families, and reduced fractions produce substantial savings for health-care systems. Implementation of hypofractionation, however, has moved at a slow pace. The oncology community have now reached an inflection point created by new evidence from the FAST-Forward five-fraction randomised trial and catalysed by the need for the global radiation oncology community to unite during the COVID-19 pandemic and rapidly rethink hypofractionation implementation. The aim of this paper is to support equity of access for all patients to receive evidence-based breast external beam radiotherapy and to facilitate the translation of new evidence into routine daily practice. The results from this European Society for Radiotherapy and Oncology Advisory Committee in Radiation Oncology Practice consensus state that moderately hypofractionated radiotherapy can be offered to any patient for whole breast, chest wall (with or without reconstruction), and nodal volumes. Ultrafractionation (five fractions) can also be offered for non-nodal breast or chest wall (without reconstruction) radiotherapy either as standard of care or within a randomised trial or prospective cohort. The consensus is timely; not only is it a pragmatic framework for radiation oncologists, but it provides a measured proposal for the path forward to influence policy makers and empower patients to ensure equity of access to evidence-based radiotherapy.
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Affiliation(s)
- Icro Meattini
- Department of Experimental and Clinical Biomedical Sciences M Serio, University of Florence, Florence, Italy; Radiation Oncology Unit, Oncology Department, Azienda Ospedaliero Universitaria Careggi, Florence, Italy.
| | - Carlotta Becherini
- Department of Experimental and Clinical Biomedical Sciences M Serio, University of Florence, Florence, Italy; Radiation Oncology Unit, Oncology Department, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
| | - Liesbeth Boersma
- Department of Radiation Oncology (Maastro), GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre+, Maastricht, Netherlands
| | - Orit Kaidar-Person
- Department of Radiation Oncology (Maastro), GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre+, Maastricht, Netherlands; Sheba Medical Center, Ramat Gan and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Gustavo Nader Marta
- Department of Radiation Oncology-Hospital Sírio-Libanês, São Paulo, Brazil; Latin American Cooperative Oncology Group, Porto Alegre, Brazil
| | - Angel Montero
- Department of Radiation Oncology, HM Hospitales, Madrid, Spain
| | - Birgitte Vrou Offersen
- Department of Experimental Clinical Oncology, Department of Oncology, Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus, Denmark
| | - Marianne C Aznar
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK; The Christie NHS Foundation Trust, Manchester, UK
| | - Claus Belka
- Department of Radiation Oncology, LMU Klinikum, Ludwig-Maximilians University Munich, Munich, Germany
| | - Adrian Murray Brunt
- School of Medicine, University of Keele, Keele, UK; Clinical Trials and Statistics Unit, The Institute of Cancer Research, London, UK
| | - Samantha Dicuonzo
- Division of Radiation Oncology, IEO, European Institute of Oncology, IRCCS, Milan, Italy
| | - Pierfrancesco Franco
- Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy; Department of Radiation Oncology, Maggiore della Carità University Hospital, Novara, Italy
| | - Mechthild Krause
- Department of Radiation Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany; OncoRay-National Center for Radiation Research in Oncology, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden and Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany; National Center for Tumor Diseases, Partner Site Dresden, German Cancer Research Center, Heidelberg, Germany; German Cancer Research Center, Heidelberg and German Cancer Consortium, Dresden, Germany; Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiooncology, Dresden, Germany
| | | | - Tanja Marinko
- Division of Radiation Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia; Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Livia Marrazzo
- Medical Physics Unit, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
| | - Ivica Ratosa
- Division of Radiation Oncology, Institute of Oncology Ljubljana, Ljubljana, Slovenia; Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Astrid Scholten
- Department of Radiotherapy, Antoni van Leeuwenhoek-Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Elżbieta Senkus
- Department of Oncology and Radiotherapy, Medical University of Gdańsk, Gdańsk, Poland
| | | | - Philip Poortmans
- Department of Radiation Oncology, Iridium Netwerk, Antwerp, Belgium; University of Antwerp, Faculty of Medicine and Health Sciences, Antwerp, Belgium
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10
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Bourgier C, Cowen D, Castan F, Lemanski C, Gourgou S, Rivera S, Labib A, Peignaux K, Blanc-Onfroy ML, Benyoucef A, Mege A, Douadi-Gaci Z, Racadot S, Latorzeff I, Schick U, Jacquot S, Massabeau C, Guilbert P, Geffrelot J, Ellis S, Lecouillard I, Breton-Callu C, Richard-Tallet A, Boulbair F, Cretin J, Belkacémi Y, Bons F, Azria D, Fenoglietto P. Quality assurance program and early toxicities in the phase III BONBIS randomized trial evaluating the role of a localized radiation boost in ductal carcinoma in situ. Radiother Oncol 2021; 164:57-65. [PMID: 34571090 DOI: 10.1016/j.radonc.2021.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 09/15/2021] [Accepted: 09/19/2021] [Indexed: 11/26/2022]
Abstract
PURPOSE To describe the quality assurance (QA) program and early toxicities in the phase III randomized trial BONBIS (NCT00907868) on the role of a localized radiation boost in ductal carcinoma in situ (DCIS). MATERIALS AND METHODS From November 2008 to July 2014, 2004 patients were randomized in arm A (only whole breast radiotherapy, WBRT) and arm B (WBRT + boost). The QA program involved 44 participant centers that performed the dummy run (DR). Compliance and uniformity of clinical target volume (CTV) delineations, and dose prescription and delivery according to the BONBIS trial radiotherapy guidelines were analyzed. Acute toxicities (during and up to 3 months after radiotherapy completion, NCI-CTCAE v3.0 classification) were evaluated in 1929 patients. RESULTS The differences in whole breast CTV (CTV1) and planning target volume (PTV1) were ≤10%, and the differences in boost CTV (CTV2) and PTV (PTV2) were ≥20% compared with the reference DR values; 95% of the prescribed dose encompassed 98.7% and 100% of the median CTV1 and CTV2. Grade ≥2 breast erythema (38.3% vs. 22.4% of grade 2 and 5.4% vs. 2.1% of grade 3, p < 0.001), grade ≥2 dermatitis (2.8% vs. 0.7%, p < 0.001), and grade 2 hyperpigmentation (6.9% vs. 3.6%, p = 0.005) were more frequent in arm B than arm A. No acute lung or cardiac toxicity was observed. Smoking history, large breast size, and large breast CTV were strong predictive factors of grade ≥2 acute skin toxicities. CONCLUSIONS The QA program showed deviations in breast and tumor bed delineation. The boost significantly increased acute skin toxicities.
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Affiliation(s)
- Celine Bourgier
- Univ Montpellier, Montpellier, France; Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Montpellier, France; Fédération Universitaire d'Oncologie Radiothérapie d'Occitanie Méditerranée, Institut régional du Cancer Montpellier (ICM), Montpellier, France
| | - Didier Cowen
- Aix Marseille Univ, APHM, Hôpital Timone-Hôpital Nord, Département de Radiothérapie, Marseille, France
| | - Florence Castan
- Unité de Biométrie, Institut régional du Cancer Montpellier (ICM), Montpellier, France
| | - Claire Lemanski
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Montpellier, France; Fédération Universitaire d'Oncologie Radiothérapie d'Occitanie Méditerranée, Institut régional du Cancer Montpellier (ICM), Montpellier, France
| | - Sophie Gourgou
- Unité de Biométrie, Institut régional du Cancer Montpellier (ICM), Montpellier, France
| | - Sofia Rivera
- Gustave Roussy, Département d'oncologie radiothérapie, Villejuif, France; Université Paris-Saclay, Inserm, U1030, Villejuif, France
| | | | - Karine Peignaux
- Département d'Oncologie Radiothérapie Centre Georges-François LECLERC, Dijon, France
| | | | - Ahmed Benyoucef
- Département de Radiothérapie et de Physique médicale, Centre Henri Becquerel, Rouen, France
| | - Alice Mege
- Sainte Catherine, Institut du Cancer Avignon-Provence, Avignon, France
| | | | | | - Igor Latorzeff
- Département de radiothérapie-oncologie, Clinique Pasteur, Toulouse, France
| | - Ulrike Schick
- Department of Radiation Oncology, University Hospital of Brest, UBO, LaTIM UMR 1101, Brest, France
| | - Stephane Jacquot
- Centre de Cancerologie du Grand Montpellier, Montpellier, France
| | - Carole Massabeau
- Département de Radiotherapie, Institut Claudius Regaud IUCT-O, Toulouse, France
| | | | - Julien Geffrelot
- Service de Radiothérapie, Centre François Baclesse, Caen, France
| | - Stephen Ellis
- Service de Radiothérapie, Centre Catalan d'Oncologie, Perpignan, France
| | | | | | - Agnès Richard-Tallet
- Institut Paoli-Calmettes, département d'Oncologie Radiothérapie, Marseille, France; Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM UMR 1068, Marseille, France
| | | | | | - Yazid Belkacémi
- Department of Radiation Oncology and Henri Mondor Breast Center, AP HP - Henri Mondor University Hospital, University of Paris-Est (UPEC), INSERM Unit 955, Team 21-IMRB, Creteil, France
| | - Françoise Bons
- Fédération Universitaire d'Oncologie Radiothérapie d'Occitanie Méditerranée, Institut régional du Cancer Montpellier (ICM), Montpellier, France; Service de Radiothérapie, CHU Nîmes, France
| | - David Azria
- Univ Montpellier, Montpellier, France; Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Montpellier, France; Fédération Universitaire d'Oncologie Radiothérapie d'Occitanie Méditerranée, Institut régional du Cancer Montpellier (ICM), Montpellier, France
| | - Pascal Fenoglietto
- Institut de Recherche en Cancérologie de Montpellier (IRCM), INSERM U1194, Montpellier, France; Fédération Universitaire d'Oncologie Radiothérapie d'Occitanie Méditerranée, Institut régional du Cancer Montpellier (ICM), Montpellier, France
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11
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Kaidar-Person O, Offersen BV, Boersma L, Meattini I, Dodwell D, Wyld L, Aznar M, Major T, Kuehn T, Strnad V, Palmu M, Hol S, Poortmans P. Tricks and tips for target volume definition and delineation in breast cancer: Lessons learned from ESTRO breast courses. Radiother Oncol 2021; 162:185-194. [PMID: 34302915 DOI: 10.1016/j.radonc.2021.07.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/10/2021] [Accepted: 07/12/2021] [Indexed: 10/20/2022]
Abstract
Delineation of target and 'organ at risk' volumes is a critical part of modern radiation therapy planning, the next essential step after deciding the indication, patient discussion and image acquisition. Adoption of volume-based treatment planning for non-metastatic breast cancer has increased greatly along with the use of improved planning techniques, essential for modern therapy. However, identifying the volumes on a planning CT is no easy task. The current paper is written by ESTRO's breast course faculty, providing tricks and tips for target volume definition and delineation for optimal postoperative breast cancer irradiation.
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Affiliation(s)
- Orit Kaidar-Person
- Sheba Medical Center, Ramat Gan, Israel; Sackler School of Medicine, Tel-Aviv University, Israel.
| | - Birgitte V Offersen
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Denmark
| | - Liesbeth Boersma
- Department of Radiation Oncology (Maastro), GROW School for Oncology, Maastricht University Medical Centre+, The Netherlands
| | - Icro Meattini
- Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence & Radiation Oncology Unit - Oncology Department, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
| | - David Dodwell
- Nuffield Department of Population Health, University of Oxford, UK
| | - Lynda Wyld
- Department of Oncology and Metabolism, University of Sheffield, UK
| | - Marianne Aznar
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, UK
| | - Tibor Major
- Center of Radiotherapy, National Institute of Oncology, Budapest, Hungary & Department of Oncology, Semmelweis University, Budapest, Hungary
| | - Thorsten Kuehn
- Department of Gynaecology and Obstetrics, Interdisciplinary Breast Center, Klinikum Esslingen, Germany
| | - Vratislav Strnad
- Dept. of Radiation Oncology, University Hospital Erlangen, Erlangen, Germany
| | - Miika Palmu
- European SocieTy for Radiotherapy and Oncology, UK
| | - Sandra Hol
- Instituut Verbeeten, Tilburg, The Netherlands
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12
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Cha E, Elguindi S, Onochie I, Gorovets D, Deasy JO, Zelefsky M, Gillespie EF. Clinical implementation of deep learning contour autosegmentation for prostate radiotherapy. Radiother Oncol 2021; 159:1-7. [DOI: 10.1016/j.radonc.2021.02.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 01/29/2021] [Accepted: 02/24/2021] [Indexed: 12/17/2022]
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13
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Mayinger M, Borm KJ, Dreher C, Dapper H, Duma MN, Oechsner M, Kampfer S, Combs SE, Habermehl D. Incidental dose distribution to locoregional lymph nodes of breast cancer patients undergoing adjuvant radiotherapy with tomotherapy - is it time to adjust current contouring guidelines to the radiation technique? Radiat Oncol 2019; 14:135. [PMID: 31370876 PMCID: PMC6676557 DOI: 10.1186/s13014-019-1328-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 06/26/2019] [Indexed: 11/10/2022] Open
Abstract
Purpose/objective(s) Along with breast-conserving surgery (BCS), adjuvant radiotherapy (RT) of patients with early breast cancer plays a crucial role in the oncologic treatment concept. Conventionally, irradiation is carried out with the aid of tangentially arranged fields. However, more modern and more complex radiation techniques such as IMRT (intensity-modulated radio therapy) are used more frequently, as they improve dose conformity and homogeneity and, in some cases, achieve better protection of adjacent risk factors. The use of this technique has implications for the incidental- and thus unintended- irradiation of adjacent loco regional lymph drainage in axillary lymph node levels I-III and internal mammary lymph nodes (IMLNs). A comparison of a homogeneous “real-life” patient collective, treated with helical tomotherapy (TT), patients treated with 3D conformal RT conventional tangentially arranged fields (3DCRT) and deep inspiration breath hold (3DCRT-DIBH), was conducted. Materials/methods This study included 90 treatment plans after BCS, irradiated in our clinic from January 2012 to August 2016 with TT (n = 30) and 3D-CRT (n = 30), 3DCRT DIBH (n = 30). PTVs were contoured at different time points by different radiation oncologists (> 7). TT was performed with a total dose of 50.4 Gy and a single dose of 1.8 Gy with a simultaneous integrated boost (SIB) to the tumor cavity (TT group). Patients irradiated with 3DCRT/3DCRT DIBH received 50 Gy à 2 Gy and a sequential boost. Contouring of lymph drainage routes was performed retrospectively according to RTOG guidelines. Results Average doses (DMean) in axillary lymph node Level I/Level II/Level III were 31.6 Gy/8.43 Gy/2.38 Gy for TT, 24.0 Gy/11.2 Gy/3.97 Gy for 3DCRT and 24.7 Gy/13.3 Gy/5.59 Gy for 3DCRT-DIBH patients. Internal mammary lymph nodes (IMLNs) Dmean were 27.8 Gy (TT), 13.5 Gy (3DCRT), and 18.7 Gy (3DCRT-DIBH). Comparing TT to 3DCRT-DIBH dose varied significantly in all axillary lymph node levels and the IMLNs. Comparing TT to 3DCRT significant dose difference in Level I and IMLNs was observed. Conclusion Dose applied to locoregional lymph drainage pathways varies comparing tomotherapy plans to conventional tangentially arranged fields. Studies are warranted whether dose variations influence loco-regional spread and must have implications for target volume definition guidelines.
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Affiliation(s)
- Michael Mayinger
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, D-81675, Munich, Germany. .,Department of Radiation Oncology, University Hospital Zurich, University of Zurich, Rämistrasse 100, CH-8091, Zurich, Switzerland.
| | - Kai Joachim Borm
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Constantin Dreher
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Hendrik Dapper
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Marciana-Nona Duma
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, D-81675, Munich, Germany.,Institute of Innovative Radiotherapy (iRT), Helmholtz Zentrum München, Ingolstädter Landstraße 1, D-85764, Oberschleißheim, Germany
| | - Markus Oechsner
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Severin Kampfer
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, D-81675, Munich, Germany
| | - Stephanie Elisabeth Combs
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, D-81675, Munich, Germany.,Institute of Innovative Radiotherapy (iRT), Helmholtz Zentrum München, Ingolstädter Landstraße 1, D-85764, Oberschleißheim, Germany.,Deutsches Konsortium für Translationale Krebsforschung (DKTK), Partner Site Munich, Munich, Germany
| | - Daniel Habermehl
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University Munich, Ismaninger Str. 22, D-81675, Munich, Germany.,Institute of Innovative Radiotherapy (iRT), Helmholtz Zentrum München, Ingolstädter Landstraße 1, D-85764, Oberschleißheim, Germany
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14
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Ejlertsen B, Offersen BV, Overgaard J, Christiansen P, Jensen MB, Kroman N, Knoop AS, Mouridsen H. Forty years of landmark trials undertaken by the Danish Breast Cancer Cooperative Group (DBCG) nationwide or in international collaboration. Acta Oncol 2018; 57:3-12. [PMID: 29205077 DOI: 10.1080/0284186x.2017.1408962] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
BACKGROUND Over the past 40 years the Danish Breast Cancer Cooperative Group (DBCG) has made significant contributions to improve outcome and to make treatment of patients with early breast cancer more tolerable through nationwide and international trials evaluating loco-regional and systemic treatments. These trials have been instrumental to establish standards for the treatment of early breast cancer. METHODS The DBCG 82 trials had a global impact by documenting that the significant gain in loco-regional recurrence from postmastectomy radiation added to systemic therapy was associated with a reduction in distant recurrence and mortality in high-risk pre- and postmenopausal patients. The DBCG trials comparing breast conserving surgery and radiotherapy with mastectomy and more recently the trial of internal mammary node irradiation also had a major impact of practice. The trials initiated by the DBCG 40 years ago on tamoxifen and cyclophosphamide based chemotherapy became instrumental for the development of adjuvant systemic therapy not only due to their positive results but by sharing these important data with other members of the Early Breast Cancer Trialist' Collaborative Group (EBCTCG). Trials from the DBCG have also been important for highlighting the relative importance of anthracyclines and taxanes in the adjuvant setting. Furthermore, DBCG has made a major contribution to the development of aromatase inhibitors and targeted adjuvant treatment for human epidermal growth factor receptor 2 positive breast cancers. RESULTS The substantial impact of these treatment improvements is illustrated by a 46.7% 10-year overall survival of early breast cancer patients treated in 1978-1987 compared to 71.5% for patients treated 2008-2012. CONCLUSIONS The trials conducted and implemented by the DBCG appear to have a major impact on the substantial survival improvements in breast cancer.
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Affiliation(s)
- Bent Ejlertsen
- Danish Breast Cancer Cooperative Group (DBCG) Secretariat and Statistical Office, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Oncology, Copenhagen University Rigshospitalet, Copenhagen, Denmark
| | - Birgitte Vrou Offersen
- Department of Oncology, Aarhus University Hospital, Aarhus, Denmark
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Jens Overgaard
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Peer Christiansen
- Department of Breast Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Maj-Britt Jensen
- Danish Breast Cancer Cooperative Group (DBCG) Secretariat and Statistical Office, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Niels Kroman
- Department of Breast Surgery, Copenhagen University Rigshospitalet, Copenhagen, Denmark
| | - Ann Søgaard Knoop
- Department of Oncology, Copenhagen University Rigshospitalet, Copenhagen, Denmark
| | - Henning Mouridsen
- Danish Breast Cancer Cooperative Group (DBCG) Secretariat and Statistical Office, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
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