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Cervical cancer brachytherapy

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https://www.readbyqxmd.com/read/28921401/experience-with-curative-radiotherapy-for-cervix-cancer-in-the-bahamas-for-2006-2016
#1
Glenn Jones, Osama Kellini, Nevein Girgis, Darron Halliday, Raleigh Butler, Thomas McGowan, Conville Brown
BACKGROUND: Cervix cancer is a significant health problem. As access to quality care in Small Island Developing States improves, and cancer centers become established, providers of care can summarize local experience to benchmark system quality and look for ways to further improve value. METHODS: This is a retrospective study of all cases of cervix cancer managed 2006-2016 at The Cancer Centre Bahamas, in conjunction with Princess Margaret Hospital, Nassau, affiliated with The University of West Indies...
September 18, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28916879/a-score-combining-baseline-neutrophilia-and-primary-tumor-suvpeak-measured-from-fdg-pet-is-associated-with-outcome-in-locally-advanced-cervical-cancer
#2
Antoine Schernberg, Sylvain Reuze, Fanny Orlhac, Irène Buvat, Laurent Dercle, Roger Sun, Elaine Limkin, Alexandre Escande, Christine Haie-Meder, Eric Deutsch, Cyrus Chargari, Charlotte Robert
PURPOSE: We investigated whether a score combining baseline neutrophilia and a PET biomarker could predict outcome in patients with locally advanced cervical cancer (LACC). METHODS: Patients homogeneously treated with definitive chemoradiation plus image-guided adaptive brachytherapy (IGABT) between 2006 and 2013 were analyzed retrospectively. We divided patients into two groups depending on the PET device used: a training set (TS) and a validation set (VS). Primary tumors were semi-automatically delineated on PET images, and 11 radiomics features were calculated (LIFEx software)...
September 15, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28914611/deep-convolutional-neural-network-with-transfer-learning-for-rectum-toxicity-prediction-in-cervical-cancer-radiotherapy-a-feasibility-study
#3
Xin Zhen, Jiawei Chen, Zichun Zhong, Brian Andrew Hrycushko, Linghong Zhou, Steve B Jiang, Kevin Albuquerque, Xuejun Gu
Better understanding of the dose-toxicity relationship is critical for safe dose escalation to improve local control in late-stage cervical cancer radiotherapy. In this study, we introduced a convolutional neural network (CNN) model to analyze rectum dose distribution and predict rectum toxicity. Forty-two cervical cancer patients treated with combined external beam radiotherapy (EBRT) and brachytherapy (BT) were retrospectively collected, including twelve toxicity patients and thirty non-toxicity patients...
September 15, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28888417/american-brachytherapy-society-recurrent-carcinoma-of-the-endometrium-task-force-patterns-of-care-and-review-of-the-literature
#4
Mitchell Kamrava, Sushil Beriwal, Beth Erickson, David Gaffney, Anuja Jhingran, Ann Klopp, Sang June Park, Akila Viswanathan, Catheryn Yashar, Lilie Lin
PURPOSE: The purpose of this American Brachytherapy Society task force is to present a literature review and patterns of care by a panel of experts for the management of vaginal recurrence of endometrial cancer. METHODS AND MATERIALS: In 2016, the American Brachytherapy Society Board selected a panel of experts in gynecologic brachytherapy to update our current state of knowledge for managing vaginal recurrence of endometrial cancer. Practice patterns were evaluated via an online survey and clinical updates occurred through a combination of literature review and clinical experience and/or expertise...
September 6, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28885196/propagation-of-registration-uncertainty-during-multi-fraction-cervical-cancer-brachytherapy
#5
Alborz Amir-Khalili, Ghassan Hamarneh, Roja Zakariaee, Ingrid Spadinger, Rafeef Abugharbieh
Multi-fraction cervical cancer brachytherapy is a form of image-guided radiotherapy that heavily relies on 3D imaging during treatment planning, delivery, and quality control. In this context, deformable image registration can increase the accuracy of dosimetric evaluations, provided that one can account for the uncertainties associated with the registration process. To enable such capability, we propose a mathematical framework that first estimates the registration uncertainty and subsequently propagates the effects of the computed uncertainties from the registration stage through to the visualizations, organ segmentations, and dosimetric evaluations...
September 8, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28860816/ct-guided-125-i-interstitial-brachytherapy-for-pelvic-recurrent-cervical-carcinoma-after-radiotherapy
#6
Lina Tong, Ping Liu, Bin Huo, Zhi Guo, Hong Ni
OBJECTIVE: This retrospective study aimed to evaluate the feasibility, safety, and clinical efficacy of computed tomography (CT)-guided (125)I seed interstitial brachytherapy for pelvic recurrent cervical cancer in patients with a history of pelvic radiotherapy. METHODS: From March 2011 to December 2015, 35 pelvic recurrent lesions (33 patients) were reirradiated using this type of salvage therapy. The medical history, dose-volume histogram parameters, complications, local control, overall survival (OS), and affected factors were analyzed...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28830646/dynamics-of-patient-reported-quality-of-life-and-symptoms-in-the-acute-phase-of-online-adaptive-external-beam-radiation-therapy-for-locally-advanced-cervical-cancer
#7
S T Heijkoop, R A Nout, S Quint, J W M Mens, B J M Heijmen, M S Hoogeman
OBJECTIVE: For locally advanced cervical cancer patients, treated with External Beam Radiotherapy (EBRT), Quality of Life (QoL) questionnaires arefrequently used to evaluate treatment-related symptoms and functioning scales. Currently, it is unknown how those evolve during the radiation treatment course. In this prospective study we report on weekly-captured patient-reported QoL and symptoms during image-guided adaptive radiotherapy (IGART) of cervical cancer patients. MATERIAL AND METHODS: Between January 2012 and September 2016, all locally advanced cervical cancer patients treated with IGART and brachytherapy with or without chemotherapy or hyperthermia, were eligible...
August 19, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28807748/dosimetric-analysis-and-preliminary-clinical-result-of-image-guided-brachytherapy-with-or-without-hybrid-technique-for-cervical-cancer-using-varisource-titanium-ring-applicator-with-siriraj-ring-cap
#8
Pittaya Dankulchai, Suphalerk Lohasammakul, Janjira Petsuksiri, Pitchayut Nakkrasae, Lalida Tuntipumiamorn, Chumpot Kakanaporn, Yaowalak Chansilpa
PURPOSE: Titanium ring cap applicator (VariSource) was applied in treating cervical cancer patients by using image-guided brachytherapy (IGBT). However, its sizes appeared to be relatively large for most of our patients. Thus, we have developed a specific applicator "Siriraj Ring Cap," which is slightly smaller and more suitable for our patients. This study was to evaluate effectiveness of this equipment. METHODS AND MATERIALS: Locally advanced cervical cancer patients were treated with external beam radiation therapy with or without concomitant chemotherapy...
August 11, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28803217/accurate-model-based-segmentation-of-gynecologic-brachytherapy-catheter-collections-in-mri-images
#9
Andre Mastmeyer, Guillaume Pernelle, Ruibin Ma, Lauren Barber, Tina Kapur
The gynecological cancer mortality rate, including cervical, ovarian, vaginal and vulvar cancers, is more than 20,000 annually in the US alone. In many countries, including the US, external-beam radiotherapy followed by high dose rate brachytherapy is the standard-of-care. The superior ability of MR to visualize soft tissue has led to an increase in its usage in planning and delivering brachytherapy treatment. A technical challenge associated with the use of MRI imaging for brachytherapy, in contrast to that of CT imaging, is the visualization of catheters that are used to place radiation sources into cancerous tissue...
July 18, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28764676/outcome-and-toxicity-of-radical-radiotherapy-or-concurrent-chemoradiotherapy-for-elderly-cervical-cancer-women
#10
Weiping Wang, Xiaorong Hou, Junfang Yan, Jie Shen, Xin Lian, Shuai Sun, Zhikai Liu, Qingyu Meng, Dunhuang Wang, Mei Zhao, Jie Qiu, Ke Hu, Fuquan Zhang
BACKGROUND: Concurrent chemoradiotherapy (CCRT) is the standard treatment for local advanced cervical cancer. However, for elderly patients, studies are limited and the outcomes are controversial. We retrospectively analyzed the efficacy and tolerance of radical radiotherapy (RT) or CCRT in elderly cervical cancer patients and performed comparisons between them. METHODS: We retrospectively analyzed the elderly cervical cancer patients (≥70 years old) treated with radical RT or CCRT between January 2006 and December 2014...
August 1, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28744870/fast-dose-optimization-for-rotating-shield-brachytherapy
#11
Myung Cho, Xiaodong Wu, Hossein Dadkhah, Jirong Yi, Ryan T Flynn, Yusung Kim, Weiyu Xu
PURPOSE: To provide a fast computational method, based on the proximal graph solver (POGS) - a convex optimization solver using the alternating direction method of multipliers (ADMM), for calculating an optimal treatment plan in rotating shield brachytherapy (RSBT). RSBT treatment planning has more degrees of freedom than conventional high-dose-rate brachytherapy due to the addition of emission direction, and this necessitates a fast optimization technique to enable clinical usage. METHODS: The multi-helix RSBT (H-RSBT) delivery technique(1) was investigated for five representative cervical cancer patients...
July 26, 2017: Medical Physics
https://www.readbyqxmd.com/read/28725253/computed-tomography-based-treatment-planning-for-high-dose-rate-brachytherapy-using-the-tandem-and-ring-applicator-influence-of-applicator-choice-on-organ-dose-and-inter-fraction-adaptive-planning
#12
REVIEW
Vishruta A Dumane, Yading Yuan, Ren-Dih Sheu, Vishal Gupta
Three dimensional planning for high-dose-rate (HDR) brachytherapy in cervical cancer has been highly recommended by consensus guidelines such as the American Brachytherapy Society (ABS) and the Groupe Européen de Curiethérapie - European Society for Radiotherapy and Oncology (GEC-ESTRO). In this document, we describe our experience with computed tomography (CT)-based planning using the tandem/ring applicator. We discuss the influence of applicator geometry on doses to organs at risk (OARs), namely the bladder, rectum, and sigmoid...
June 2017: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/28725245/the-usefulness-of-fleet-rectal-enemas-on-high-dose-rate-intracavitary-cervical-cancer-brachytherapy-a-prospective-trial
#13
Ignacio Andres, Manuel Gutierrez-Perez, Maria Pilar Rodriguez-Vela, Roberto Berenguer, Marimar Sevillano, Manuel Aguayo, Meritxell Arenas, Angeles Rovirosa, Yashmina Murria-Perez, Sebastia Sabater
PURPOSE: To evaluate the effects of rectal enemas on rectal doses during radical high-dose-rate (HDR) intracavitary cervical brachytherapy (BT). MATERIAL AND METHODS: Twenty patients suffering from cervical cancer and treated with external beam radiotherapy and HDR-BT were included in a prospective trial. The first brachytherapy fraction was considered the basal status, and patients were instructed to self-administer two rectal cleansing enemas before the second fraction...
June 2017: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/28721510/increased-genitourinary-fistula-rate-after-bevacizumab-in-recurrent-cervical-cancer-patients-initially-treated-with-definitive-radiochemotherapy-and-image-guided-adaptive-brachytherapy
#14
Alina Sturdza, Sandra Hofmann, Marlene Kranawetter, Stephan Polterauer, Christoph Grimm, Michael Krainer, Christian Kirisits, Richard Pötter, Alexander Reinthaller, Richard Schwameis
BACKGROUND AND PURPOSE: Patients with recurrent cervical cancer (RecCC) who received definitive radiochemotherapy including image-guided adaptive brachytherapy (IGABT) as primary treatment are currently treated in our institution with palliative intent by chemotherapy (CHT) combined with bevacizumab (BEV). We aim to evaluate the risk of gastrointestinal (GI)/genitourinary (GU) fistula formation in these patients. MATERIALS AND METHODS: Data of 35 consecutive patients with RecCC treated initially with radiochemotherapy and IGABT were collected...
July 18, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28717717/management-and-care-of-women-with-invasive-cervical-cancer-american-society-of-clinical-oncology-resource-stratified-clinical-practice-guideline
#15
Linus T Chuang, Sarah Temin, Rolando Camacho, Alfonso Dueñas-Gonzalez, Sarah Feldman, Murat Gultekin, Vandana Gupta, Susan Horton, Graciela Jacob, Elizabeth A Kidd, Kennedy Lishimpi, Carolyn Nakisige, Joo-Hyun Nam, Hextan Yuen Sheung Ngan, William Small, Gillian Thomas, Jonathan S Berek
PURPOSE: To provide evidence-based, resource-stratified global recommendations to clinicians and policymakers on the management and palliative care of women diagnosed with invasive cervical cancer. METHODS: ASCO convened a multidisciplinary, multinational panel of cancer control, medical and radiation oncology, health economic, obstetric and gynecologic, and palliative care experts to produce recommendations reflecting resource-tiered settings. A systematic review of literature from 1966 to 2015 failed to yield sufficiently strong quality evidence to support basic- and limited-resource setting recommendations; a formal consensus-based process was used to develop recommendations...
October 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28709705/phase-ii-trial-of-neoadjuvant-chemotherapy-followed-by-chemoradiation-in-locally-advanced-cervical-cancer
#16
Carla Rameri Alexandre Silva de Azevedo, Luiz Cláudio Santos Thuler, Maria Júlia Gonçalves de Mello, Jurema Telles de Oliveira Lima, Ana Luiza Fassizoli da Fonte, Diógenes Fernando Santos Fontão, Vandré Cabral Gomes Carneiro, Tien Man Cabral Chang, Carlos Gil Ferreira
OBJECTIVE: Cervical cancer is a global public health challenge. Since 1999, platin based chemoradiation (CRT) is the standard treatment for those patients with locally advanced disease. However, this population still has a dismal prognosis and, alternatives approaches such as adjuvant chemotherapy are controversial, especially because of increased toxicity. Neoadjuvant chemotherapy (NACT) could be an option for more intensive treatment with manageable toxicity. METHODS: A phase II, prospective, non-randomized trial was conducted at a reference center in Recife, Brazil...
September 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28702405/the-impact-of-irradiation-dose-on-the-computed-tomography-radiographic-response-of-metastatic-nodes-and-clinical-outcomes-in-cervix-cancer-in-a-low-resource-setting
#17
Matthew Ryan McKeever, Lindsay Hwang, Jennifer Barclay, Yin Xi, April Bailey, Kevin Albuquerque
INTRODUCTION: The aim of this study is to investigate the relationship between the radiation dose to pelvic and para-aortic lymph nodes, nodal response, and clinical outcomes in a resource-poor setting based on computed tomography (CT) nodal size alone. MATERIALS AND METHODS: This retrospective study from 2009 to 2015 included 46 cervical cancer patients with 133 metastatic pelvic and para-aortic lymph nodes definitively treated with chemoradiation and brachytherapy in a public hospital with limited access to positron emission tomography (PET) scans...
April 2017: South Asian Journal of Cancer
https://www.readbyqxmd.com/read/28697002/re-irradiation-of-cervical-and-endometrial-cancer
#18
Megan Llewelyn, Alexandra Taylor
PURPOSE OF REVIEW: Re-irradiation historically has been associated with unacceptable toxicity and limited benefit. Recent advances in radiotherapy can change the treatment paradigm to provide new salvage treatments for recurrences of cervical and endometrial cancer. RECENT FINDINGS: Image-guided brachytherapy is an effective method for salvaging central pelvic recurrence, although it has resulted in 20-25% severe late toxicity. Pelvic sidewall disease is not accessible to brachytherapy, so a combined modality approach with radical surgery and intraoperative radiotherapy is an alternative approach...
July 10, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/28694116/effect-of-bladder-distension-on-doses-to-organs-at-risk-in-pulsed-dose-rate-3d-image-guided-adaptive-brachytherapy-for-locally-advanced-cervical-cancer
#19
Jean Philippe Nesseler, Claire Charra-Brunaud, Julia Salleron, Jean François Py, Andres Huertas, Emilie Meknaci, Florent Courrech, Didier Peiffert, Sophie Renard-Oldrini
PURPOSE: To evaluate the impact of bladder distension on doses to organs at risk in patients treated with 3D image-guided adaptive pulsed-dose-rate (PDR) brachytherapy (BT) for locally advanced cervical cancer. METHODS AND MATERIALS: Twenty-two patients who had previously been treated by external beam radiation therapy (EBRT), underwent BT treatment planning to a pelvic MRI (or a CT scan in case of contraindication) after their bladder was filled with 100 cc of physiological saline (full bladder)...
July 7, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28673762/diffusion-weighted-mri-in-image-guided-adaptive-brachytherapy-tumor-delineation-feasibility-study-and-comparison-with-gec-estro-guidelines
#20
Antoine Schernberg, Corinne Balleyguier, Isabelle Dumas, Sébastien Gouy, Alexandre Escande, Enrica Bentivegna, Philippe Morice, Eric Deutsch, Christine Haie-Meder, Cyrus Chargari
PURPOSE: To examine the feasibility of using diffusion-weighted images (DWIs) coregistered with T2-weighted (T2w) sequence in treatment planning system to improve target delineation for image-guided adaptive brachytherapy (IGABT) in locally advanced cervical cancer patients. METHODS AND MATERIALS: We retrospectively examined the records of consecutive patients who were referred to our institution for pulse-dose-rate IGABT between May and December 2015 after concurrent chemoradiation...
June 30, 2017: Brachytherapy
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