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Matos LL, Kowalski LP, Chaves ALF, de Oliveira TB, Marta GN, Curado MP, de Castro Junior G, Farias TP, Bardales GS, Cabrera MA, Capuzzo RDC, de Carvalho GB, Cernea CR, Dedivitis RA, Dias FL, Estefan AM, Falco AH, Ferraris GA, Gonzalez-Motta A, Gouveia AG, Jacinto AA, Kulcsar MAV, Leite AK, Lira RB, Mak MP, De Marchi P, de Mello ES, de Matos FCM, Montero PH, de Moraes ED, de Moraes FY, Morais DCR, Poenitz FM, Poitevin A, Riveros HO, Sanabria Á, Ticona-Castro M, Vartanian JG, Viani G, Vines EF, William Junior WN, Conway D, Virani S, Brennan P. Latin American Consensus on the Treatment of Head and Neck Cancer. JCO Glob Oncol 2024; 10:e2300343. [PMID: 38603656 DOI: 10.1200/go.23.00343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/19/2023] [Accepted: 02/07/2024] [Indexed: 04/13/2024] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is well known as a serious health problem worldwide, especially in low-income countries or those with limited resources, such as most countries in Latin America. International guidelines cannot always be applied to a population from a large region with specific conditions. This study established a Latin American guideline for care of patients with head and neck cancer and presented evidence of HNSCC management considering availability and oncologic benefit. A panel composed of 41 head and neck cancer experts systematically worked according to a modified Delphi process on (1) document compilation of evidence-based answers to different questions contextualized by resource availability and oncologic benefit regarding Latin America (region of limited resources and/or without access to all necessary health care system infrastructure), (2) revision of the answers and the classification of levels of evidence and degrees of recommendations of all recommendations, (3) validation of the consensus through two rounds of online surveys, and (4) manuscript composition. The consensus consists of 12 sections: Head and neck cancer staging, Histopathologic evaluation of head and neck cancer, Head and neck surgery-oral cavity, Clinical oncology-oral cavity, Head and neck surgery-oropharynx, Clinical oncology-oropharynx, Head and neck surgery-larynx, Head and neck surgery-larynx/hypopharynx, Clinical oncology-larynx/hypopharynx, Clinical oncology-recurrent and metastatic head and neck cancer, Head and neck surgery-reconstruction and rehabilitation, and Radiation therapy. The present consensus established 48 recommendations on HNSCC patient care considering the availability of resources and focusing on oncologic benefit. These recommendations could also be used to formulate strategies in other regions like Latin America countries.
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Affiliation(s)
- Leandro Luongo Matos
- Head and Neck Surgery, Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Universidade de São Paulo (Icesp HCFMUSP), São Paulo, Brazil
- Faculdade Israelita de Ciências da Saúde Albert Einstein, São Paulo, Brazil
| | | | | | | | | | | | - Gilberto de Castro Junior
- Clinical Oncology, Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Universidade de São Paulo (Icesp HCFMUSP), São Paulo, Brazil
| | | | | | | | | | | | | | | | | | - Andrés Munyo Estefan
- Profesor Adjunto Catedra de Otorrinolaringologia del Hospital de Clínicas, Montevidéu, Uruguay
| | | | | | | | - Andre Guimarães Gouveia
- Juravinski Cancer Centre, Department of Oncology, Division of Radiation Oncology, McMaster University, Hamilton, ON, Canada
| | | | - Marco Aurelio Vamondes Kulcsar
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Universidade de São Paulo (Icesp HCFMUSP), São Paulo, Brazil
| | - Ana Kober Leite
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Universidade de São Paulo (Icesp HCFMUSP), São Paulo, Brazil
| | - Renan Bezerra Lira
- AC Camargo Cancer Center and Hospital Albert Einstein, São Paulo, Brazil
| | - Milena Perez Mak
- 3Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, Brazil
| | | | | | | | - Pablo H Montero
- Department of Surgical Oncology and Head and Neck Surgery, Division of Surgery, P. Universidad Católica de Chile, Santiago, Chile
| | | | | | | | | | | | | | - Álvaro Sanabria
- 4Department of Surgery, Universidad de Antioquia, Hospital Alma Mater, Medellin, Colombia
| | - Miguel Ticona-Castro
- 5ESMO Member, Peruvian Society of Medical Oncology (S.P.O.M.) Member, La Molina, Peru
| | - José Guilherme Vartanian
- 6Head and Neck Surgery and Otorhinolaryngology Department, A. C. Camargo Cancer Center, São Paulo, Brazil
| | - Gustavo Viani
- 7Ribeirao Preto Medical School, University of Sao Paulo, Ribeirão Preto, Brazil
| | - Eugenio F Vines
- Facultad de Medicina, Pontificia Universidad Catolica de Chile, Santiago, Chile
| | | | | | - Shama Virani
- International Agency for Research on Cancer (IARC/WHO), Genomic Epidemiology Branch, Lyon, France
| | - Paul Brennan
- International Agency for Research on Cancer (IARC/WHO), Genomic Epidemiology Branch, Lyon, France
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Zhou J, Li S, Ye C, Shen K, Li A, Chen G, Li X, Bai S, Wang W, Zhong R. Analysis of local setup errors of sub-regions in cone-beam CT-guided post-mastectomy radiation therapy. JOURNAL OF RADIATION RESEARCH 2021; 61:457-463. [PMID: 32100830 PMCID: PMC7299271 DOI: 10.1093/jrr/rraa007] [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: 09/24/2019] [Revised: 11/27/2019] [Indexed: 02/05/2023]
Abstract
The purpose of the study was to quantify local setup errors and evaluate the planning target volume (PTV) margins for sub-regions in cone-beam computed tomography (CBCT)-guided post-mastectomy radiation therapy (PMRT). The local setup errors of 20 patients undergoing CBCT-guided PMRT were analysed retrospectively. Image registration between CBCT and planning CT was performed using four sub-regions of interest (ROIs): the supraclavicular area (SROI), ipsilateral chest wall region (CROI), ipsilateral chest wall plus supraclavicular region (SROI + CROI) and vertebral region (TROI). Bland–Altman analysis, correlation, local setup errors and PTV margins among these ROIs were evaluated. There was no significant consistency or correlation for registration results between the TROI and the CROI or SROI regions on any translational axis. When using the SROI + CROI as the ROI, the systematic error (Σ) and random error (σ) of the local setup errors for the CROI region were 1.81, 1.19 and 1.76 mm and 1.84, 2.64 and 3.00 mm along the medial–lateral (ML), superior–inferior (SI) and anterior–posterior (AP) directions, respectively. The PTV margins for the CROI region were 5.80, 4.82 and 6.50 mm. The Σ and σ of the local setup errors for the SROI region were 1.29, 1.15 and 0.77 mm and 1.96, 2.65 and 2.2 mm, respectively, and the PTV margins were 4.59, 4.73 and 3.47 mm. Large setup errors and local setup errors occur in PMRT. The vertebral body should not be a position surrogate for the supraclavicular region or chest wall. To compensate for the local setup errors, different PTV margins are required, even with CBCT guidance.
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Affiliation(s)
- Jidan Zhou
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Shuai Li
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Chengwei Ye
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Konglong Shen
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - An Li
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Gang Chen
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Xiaoyu Li
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Sen Bai
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Weifeng Wang
- Department of Radiotherapy, Jingzhou Central Hospital, the Second Clinical Medical College, Yangtze University, Jingzhou 434020, P.R. China
| | - Renming Zhong
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
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Shen K, Xiong J, Wang Z, Wang W, Li W, Zhou J, Deng Z, Li B, Zhong R. Design of a new breast vacuum bag to reduce the global and local setup errors and to reduce PTV margin in post-mastectomy radiation therapy. JOURNAL OF RADIATION RESEARCH 2020; 61:985-992. [PMID: 32823282 PMCID: PMC7674700 DOI: 10.1093/jrr/rraa066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/09/2020] [Indexed: 02/05/2023]
Abstract
To design a new breast vacuum bag to reduce global and local setup errors in post-mastectomy radiation therapy (PMRT). A total of 24 PMRT patients were immobilized with an old vacuum bag and 26 PMRT patients were immobilized with a new vacuum bag. The registration results were analysed using four regions of interest (ROI): the global ROI [including the whole region of the planning target volume (PTV), GROI], the supraclavicular area (SROI), the ipsilateral chest wall region (CROI) and the ipsilateral arm region (AROI). The global and local setup errors of the two groups were compared. The global setup errors of the new vacuum group were significantly smaller than those in the old vacuum group with the exception of yaw axes (P < 0.05). The systematic error (Σ) and random error (σ) ranged from 1.21 to 2.13 mm. In the new vacuum group, the local setup errors in the medial-lateral (ML) direction and roll axes for CROI (the Σ and σ ranged from 0.65 to 1.35 mm), and the local setup errors in ML and superior-inferior (SI) directions for SROI were significantly smaller than those in the old vacuum group. The total required PTV margins for the chest wall in ML, SI, and anterior-posterior (AP) were 4.40, 3.12 and 3.77 mm respectively. The new vacuum bag can significantly reduce the global setup errors and local setup errors in PMRT. The respiratory motion of the chest wall was negligible, and the 5 mm PTV margin could cover the local setup errors in PMRT using the new vacuum bag with cone beam CT (CBCT) correction.
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Affiliation(s)
- Konglong Shen
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Jie Xiong
- Radiology Department, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Zhiguo Wang
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Weifeng Wang
- Jingzhou Central Hospital, the Second Clinical Medical College, Yangtze University, Jinzhou 121001, P.R. China
| | - Wan Li
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Jidan Zhou
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Zhonghua Deng
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Bin Li
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
| | - Renming Zhong
- Department of Radiotherapy, Division of Radiation Physics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, P.R. China
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Song Y, Zhang W, Zhang H, Wang Q, Xiao Q, Li Z, Wei X, Lai J, Wang X, Li W, Zhong Q, Gong P, Zhong R, Zhao J. Low-dose cone-beam CT (LD-CBCT) reconstruction for image-guided radiation therapy (IGRT) by three-dimensional dual-dictionary learning. Radiat Oncol 2020; 15:192. [PMID: 32787941 PMCID: PMC7425566 DOI: 10.1186/s13014-020-01630-3] [Citation(s) in RCA: 5] [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: 03/31/2020] [Accepted: 07/29/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND To develop a low-dose cone beam CT (LD-CBCT) reconstruction method named simultaneous algebraic reconstruction technique and dual-dictionary learning (SART-DDL) joint algorithm for image guided radiation therapy (IGRT) and evaluate its imaging quality and clinical application ability. METHODS In this retrospective study, 62 CBCT image sets from February 2018 to July 2018 at west china hospital were randomly collected from 42 head and neck patients (mean [standard deviation] age, 49.7 [11.4] years, 12 females and 30 males). All image sets were retrospectively reconstructed by SART-DDL (resultant D-CBCT image sets) with 18% less clinical raw projections. Reconstruction quality was evaluated by quantitative parameters compared with SART and Total Variation minimization (SART-TV) joint reconstruction algorithm with paired t test. Five-grade subjective grading evaluations were done by two oncologists in a blind manner compared with clinically used Feldkamp-Davis-Kress algorithm CBCT images (resultant F-CBCT image sets) and the grading results were compared by paired Wilcoxon rank test. Registration results between D-CBCT and F-CBCT were compared. D-CBCT image geometry fidelity was tested. RESULTS The mean peak signal to noise ratio of D-CBCT was 1.7 dB higher than SART-TV reconstructions (P < .001, SART-DDL vs SART-TV, 36.36 ± 0.55 dB vs 34.68 ± 0.28 dB). All D-CBCT images were recognized as clinically acceptable without significant difference with F-CBCT in subjective grading (P > .05). In clinical registration, the maximum translational and rotational difference was 1.8 mm and 1.7 degree respectively. The horizontal, vertical and sagittal geometry fidelity of D-CBCT were acceptable. CONCLUSIONS The image quality, geometry fidelity and clinical application ability of D-CBCT are comparable to that of the F-CBCT for head-and-neck patients with 18% less projections by SART-DDL.
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Affiliation(s)
- Ying Song
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Alley, Chengdu, 610065 P. R. China
| | - Weikang Zhang
- The School of Biomedical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Minhang District, Shanghai, 610065 P. R. China
| | - Hong Zhang
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Alley, Chengdu, 610065 P. R. China
| | - Qiang Wang
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Alley, Chengdu, 610065 P. R. China
| | - Qing Xiao
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Alley, Chengdu, 610065 P. R. China
| | - Zhibing Li
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Alley, Chengdu, 610065 P. R. China
| | - Xing Wei
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Alley, Chengdu, 610065 P. R. China
| | - Jialu Lai
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Alley, Chengdu, 610065 P. R. China
| | - Xuetao Wang
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Alley, Chengdu, 610065 P. R. China
| | - Wan Li
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Alley, Chengdu, 610065 P. R. China
| | - Quan Zhong
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Alley, Chengdu, 610065 P. R. China
| | - Pan Gong
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Alley, Chengdu, 610065 P. R. China
| | - Renming Zhong
- Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, No.37 Guo Xue Alley, Chengdu, 610065 P. R. China
| | - Jun Zhao
- The School of Biomedical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Minhang District, Shanghai, 610065 P. R. China
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Kearney M, Coffey M, Leong A. A review of Image Guided Radiation Therapy in head and neck cancer from 2009-201 - Best Practice Recommendations for RTTs in the Clinic. Tech Innov Patient Support Radiat Oncol 2020; 14:43-50. [PMID: 32566769 PMCID: PMC7296359 DOI: 10.1016/j.tipsro.2020.02.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/17/2020] [Accepted: 02/11/2020] [Indexed: 02/06/2023] Open
Abstract
Radiation therapy (RT) is beneficial in Head and Neck Cancer (HNC) in both the definitive and adjuvant setting. Highly complex and conformal planning techniques are becoming standard practice in delivering increased doses in HNC. A sharp falloff in dose outside the high dose area is characteristic of highly complex techniques and geometric uncertainties must be minimised to prevent under dosage of the target volume and possible over dosage of surrounding critical structures. CTV-PTV margins are employed to account for geometric uncertainties such as set up errors and both interfraction and intrafraction motion. Robust immobilisation and Image Guided Radiation Therapy (IGRT) is also essential in this group of patients to minimise discrepancies in patient position during the treatment course. IGRT has evolved with increased 2-Dimensional (2D) and 3-Dimensional (3D) IGRT modalities available for geometric verification. 2D and 3D IGRT modalities are both beneficial in geometric verification while 3D imaging is a valuable tool in assessing volumetric changes that may have dosimetric consequences for this group of patients. IGRT if executed effectively and efficiently provides clinicians with confidence to reduce CTV-PTV margins thus limiting treatment related toxicities in patients. Accumulated exposure dose from IGRT vary considerably and may be incorporated into the treatment plan to avoid excess dose. However, there are considerable variations in the application of IGRT in RT practice. This paper aims to summarise the advances in IGRT in HNC treatment and provide clinics with recommendations for an IGRT strategy for HNC in the clinic.
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Affiliation(s)
- Maeve Kearney
- Applied Radiation Therapy Trinity, Discipline of Radiation Therapy, Trinity College, Dublin 2, Ireland
| | - Mary Coffey
- Applied Radiation Therapy Trinity, Discipline of Radiation Therapy, Trinity College, Dublin 2, Ireland
| | - Aidan Leong
- Department of Radiation Therapy, University of Otago, Wellington, New Zealand.,Bowen Icon Cancer Centre, Wellington, New Zealand
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