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https://www.readbyqxmd.com/read/29331573/deformable-image-registration-based-contour-propagation-yields-clinically-acceptable-plans-for-mri-based-cervical-cancer-brachytherapy-planning
#1
Christina Hunter Chapman, Daniel Polan, Karen Vineberg, Shruti Jolly, Katherine E Maturen, Kristy K Brock, Joann I Prisciandaro
PURPOSE: To study the dosimetric impact of deformable image registration-based contour propagation on MRI-based cervical cancer brachytherapy planning. METHODS AND MATERIALS: High-risk clinical target volume (HRCTV) and organ-at-risk (OAR) contours were delineated on MR images of 10 patients who underwent ring and tandem brachytherapy. A second set of contours were propagated using a commercially available deformable registration algorithm. "Manual-contour" and "propagated-contour" plans were optimized to achieve a maximum dose to the most minimally exposed 90% of the volume (D90) (%) of 6 Gy/fraction, respecting minimum dose to the most exposed 2cc of the volume (D2cc) OAR constraints of 5...
January 10, 2018: Brachytherapy
https://www.readbyqxmd.com/read/29325690/dose-volume-effects-in-pathologic-lymph-nodes-in-locally-advanced-cervical-cancer
#2
Warren Bacorro, Isabelle Dumas, Alexandre Escande, Sebastien Gouy, Enrica Bentivegna, Philippe Morice, Christine Haie-Meder, Cyrus Chargari
OBJECTIVE: In cervical cancer patients, dose-volume relationships have been demonstrated for tumor and organs-at-risk, but not for pathologic nodes. The nodal control probability (NCP) according to dose/volume parameters was investigated. MATERIAL AND METHODS: Patients with node-positive cervical cancer treated curatively with external beam radiotherapy (EBRT) and image-guided brachytherapy (IGABT) were identified. Nodal doses during EBRT, IGABT and boost were converted to 2-Gy equivalent (α/β = 10 Gy) and summed...
January 8, 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29325451/expression-of-sestrin-genes-in-radiotherapy-for-prostate-cancer-and-its-association-with-fatigue-a-proof-of-concept-study
#3
Velda J Gonzalez, Farnoosh Abbas-Aghababazadeh, Brooke L Fridley, Tomar Ghansah, Leorey N Saligan
Genetic factors that influence inflammation and energy production/expenditure in cells may affect patient outcomes following treatment with external beam radiation therapy (EBRT). Sestrins, stress-inducible genes with antioxidant properties, have recently been implicated in several behaviors including fatigue. This proof-of-concept study explored whether the sestrin family of genes ( SESN1, SESN2, and SESN3) were differentially expressed from baseline to the midpoint of EBRT in a sample of 26 Puerto Rican men with nonmetastatic prostate cancer...
January 1, 2018: Biological Research for Nursing
https://www.readbyqxmd.com/read/29319919/outcomes-and-toxicities-in-intermediate-risk-prostate-cancer-patients-treated-with-brachytherapy-alone-or-brachytherapy-and-supplemental-external-beam-radiation-therapy
#4
Emily Schlussel Markovic, Michael Buckstein, Nelson N Stone, Richard G Stock
OBJECTIVE: To evaluate the cancer control outcomes and long-term treatment-related morbidity of brachytherapy as well as combination brachytherapy and EBRT in patients with intermediate-risk prostate cancer. MATERIALS AND METHODS: A retrospective review was conducted in a prospectively collected database of patients with intermediate-risk prostate cancer who were treated either with brachytherapy or brachytherapy and EBRT, with or without ADT, from 1990-2014. Urinary and erectile dysfunction symptoms are measured using the International Prostate Symptom Score (IPSS) and the Mount Sinai erectile function scale, and the Sexual Health Inventory for Men (SHIM), respectively...
January 10, 2018: BJU International
https://www.readbyqxmd.com/read/29306674/a-comparison-of-early-prostate-specific-antigen-decline-between-prostate-brachytherapy-and-different-fractionation-of-external-beam-radiation-impact-on-biochemical-failure
#5
Daniel Taussky, Stéphane Bedwani, Nissan Meissner, Jean-Paul Bahary, Carole Lambert, Maroie Barkati, Marie-Claude Beauchemin, Cynthia Ménard, Guila Delouya
PURPOSE: The aim of this study was to compare early prostate-specific antigen (PSA) decline patterns and PSA nadirs between low-dose-rate seed prostate brachytherapy (LDR-PB) and different fractionations of external beam radiotherapy (EBRT) and their predictive importance for biochemical failure (bF). METHODS AND MATERIALS: Patients with D'Amico low- or intermediate-risk prostate cancer who underwent a single-modality treatment without androgen deprivation were included in this study...
January 3, 2018: Brachytherapy
https://www.readbyqxmd.com/read/29301352/stereotactic-body-radiation-therapy-in-the-management-of-upper-gi-malignancies
#6
REVIEW
Leila Tchelebi, Nicholas Zaorsky, Heath Mackley
The role of external beam radiation therapy (EBRT) in the management of upper gastrointestinal malignancies is constantly evolving. As radiation therapy techniques improve and are able to deliver more ablative doses of radiotherapy while sparing healthy tissue, radiation can be applied to a wider range of clinical scenarios. Stereotactic body radiation therapy (SBRT) allows a high dose of radiation to be delivered to a highly conformal treatment volume in a short amount of time. Another potential advantage of SBRT is its ability to increase tumor immunogenicity, while also having less of an immunosuppressive effect on the patient, as compared to conventionally fractionated radiation therapy...
January 3, 2018: Biomedicines
https://www.readbyqxmd.com/read/29296018/prostate-cancer-radiation-and-urethral-strictures-a-systematic-review-and-meta-analysis
#7
Mohannad A Awad, Thomas W Gaither, E Charles Osterberg, Gregory P Murphy, Nima Baradaran, Benjamin N Breyer
BACKGROUND: We performed a systematic review and meta-analysis to determine the prevalence and predictors of urethral stricture development post radiation therapy (RT) for prostate cancer (PCa). METHODS: Published articles in PubMed/Medline, Cochrane, and Embase databases from January 2000 to April 2016 were queried. Inclusion criteria were any study that reported the prevalence of urethral strictures following external beam radiation therapy (EBRT), brachytherapy (BT), or both as a primary treatment for PCa...
January 2, 2018: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/29276060/brachytherapy-monotherapy-may-be-sufficient-for-a-subset-of-patients-with-unfavorable-intermediate-risk-prostate-cancer
#8
Martin T King, Ming-Hui Chen, Brian J Moran, Michelle H Braccioforte, Ivan Buzurovic, Vinayak Muralidhar, David D Yang, Kent W Mouw, Phillip M Devlin, Anthony V D'Amico, Paul L Nguyen, Peter F Orio
PURPOSE/OBJECTIVE(S): Brachytherapy (BT) monotherapy is a well-established treatment modality for favorable intermediate risk (FIR) prostate cancer. However, patients with unfavorable intermediate risk (UIR) disease are often recommended trimodality therapy involving BT, androgen deprivation therapy (ADT), and external beam radiation therapy (EBRT). We sought to investigate the relative benefit of supplemental therapies (ADT and/or EBRT) for FIR and UIR prostate cancer in a large dataset...
December 21, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29275307/challenges-in-the-analysis-of-outcomes-for-surgical-compared-to-radiotherapy-treatment-of-prostate-cancer
#9
Scott M Glaser, Ronny Kalash, Dante R Bongiorni, Mark S Roberts, Goundappa K Balasubramani, Bruce L Jacobs, Sushil Beriwal, Dwight E Heron, Joel S Greenberger
BACKGROUND/AIM: Prostate cancer can be treated with radical prostatectomy (RP), external-beam radiotherapy (EBRT), or brachytherapy (BT). These modalities have similar cancer-related outcomes. We used an innovative method to analyze the cost of such treatment. MATERIALS AND METHODS: We queried our Institution's Insurance Division [University of Pittsburgh Medical Center (UPMC) Health Plan] beneficiaries from 2003-2008, who were diagnosed with prostate cancer and also queried the UPMC tumor registry for all patients with prostate cancer treated at our Institution...
January 2018: In Vivo
https://www.readbyqxmd.com/read/29273076/highly-conformal-combined-radiotherapy-with-cisplatin-and-gemcitabine-for-treatment-of-loco-regionally-advanced-cervical-cancer-a-retrospective-study
#10
Nikola Cihoric, Alexandros Tsikkinis, Eugenia Vlaskou Badra, Markus Glatzer, Urban Novak, Amina Scherz, Mohamed Shelan, Ivan Soldatovic, Chittazhathu Kurian Kuruvilla Yojena, Daniel M Aebersold, Kristina Lössl
BACKGROUND: Cisplatin and gemcitabine combined with conventional radiation therapy in the treatment of cervical cancer patients results in a favorable outcome but with excess toxicity. The purpose of this study was to evaluate the toxicity profile of dual chemotherapy and highly conformal external beam radiotherapy with image guided adaptive brachytherapy. METHODS: Seventeen patients with cervical carcinoma FIGO stage IB2-IIIB were treated with curative intent between 2011 and 2015...
December 22, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/29251165/prostate-cancer-high-dose-rate-brachytherapy-review-of-evidence-and-current-perspectives
#11
Sunil W Dutta, Clayton E Alonso, Bruce Libby, Timothy N Showalter
Patients with intermediate to high risk disease (prostate specific antigen (PSA) ≥ 10, Gleason score ≥ 7, or clinical stage ≥ T2b) suffer from poorer long-term biochemical control (freedom from an increasing prostate specific antigen level) when treated with external beam radiation (EBRT) alone. In order to improve biochemical control while limiting long-term complications, brachytherapy has been incorporated into radiotherapy treatment, either alone or in combination with EBRT. Areas covered: Current literature regarding the use of high dose-rate (HDR) brachytherapy for localized prostate cancer, including as a boost and monotherapy...
December 22, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/29248311/a-cost-effectiveness-analysis-of-contact-x-ray-brachytherapy-for-the-treatment-of-patients-with-rectal-cancer-following-a-partial-response-to-chemoradiotherapy
#12
C Rao, F M Smith, A P Martin, A S Dhadda, A Stewart, S Gollins, B Collins, T Athanasiou, A Sun Myint
AIMS: Following chemoradiotherapy in patients with rectal cancer, the addition of contact X-ray brachytherapy (CXB) in partial responders might increase the proportion of patients with a clinical complete response (cCR) and who are thus suitable for watch and wait management. However, the long-term cost-effectiveness of this approach has not been evaluated. MATERIALS AND METHODS: Decision analytical modelling and a Markov simulation were used to compare long-term costs, quality-adjusted life years (QALYs) and cost-effectiveness from a third-party payer (National Health Service) perspective for treatment strategies after chemoradiotherapy; watch and wait with CXB when a cCR was not initially achieved after external beam radiotherapy (EBRT) (WWCXB), watch and wait with EBRT alone (WWEBRT) and radical surgery for all patients...
December 13, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/29234252/targeted-intraoperative-radiotherapy-tumour-bed-boost-during-breast-conserving-surgery-after-neoadjuvant-chemotherapy-a-subgroup-analysis-of-hormone-receptor-positive-her2-negative-breast-cancer
#13
Hans-Christian Kolberg, György Lövey, Leyla Akpolat-Basci, Miltiades Stephanou, Peter Fasching, Michael Untch, Oliver Hoffmann, Max Bulsara, Jayant Vaidya, Cornelia Liedtke
Introduction: In a previous study our group showed a beneficial effect of targeted intraoperative radiotherapy (TARGIT-IORT) as an intraoperative boost on overall survival after neoadjuvant chemotherapy (NACT) compared to an external boost (EBRT). In this study we present the results of a detailed subgroup analysis of the hormone receptor (HR)-positive HER2-negative patients. Methods: In this cohort study involving 46 patients with HR-positive HER2-negative breast cancer after NACT, we compared the outcomes of 21 patients who received an IORT boost to those of 25 patients treated with an EBRT boost...
October 2017: Breast Care
https://www.readbyqxmd.com/read/29229327/dose-escalation-using-contact-x-ray-brachytherapy-after-external-beam-radiotherapy-as-nonsurgical-treatment-option-for-rectal-cancer-outcomes-from-a-single-center-experience
#14
Arthur Sun Myint, Fraser McLean Smith, Simon Gollins, Helen Wong, Christopher Rao, Karen Whitmarsh, Raj Sripadam, Paul Rooney, Michael Hershman, D Mark Pritchard
PURPOSE: To review the outcomes of rectal cancer patients treated with a nonsurgical approach using contact x-ray brachytherapy (CXB) when suspicious residual disease (≤3 cm) was present after external beam chemoradiation therapy/radiation therapy (EBCRT/EBRT). METHODS AND MATERIALS: Outcome data for rectal cancer patients referred to our institution from 2003 to 2012 were retrieved from an institutional database. These patients were referred after initial local multidisciplinary team discussion because they were not suitable for, or had refused, surgery...
October 20, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29228751/comparisons-of-health-related-quality-of-life-among-surgery-and-radiotherapy-for-localized-prostate-cancer-a-systematic-review-and-meta-analysis
#15
Cheng Chen, Zhen Chen, Kun Wang, Linkun Hu, Renfang Xu, Xiaozhou He
The objective of this study is to compare health-related quality of life (QOL) outcomes between radical prostatectomy (RP) and external beam radiation therapy (EBRT) for localized prostate cancer. PubMed, EMBASE, the Cochrane Library and Web of Science (to July 2017) were searched. Pooled analysis of each domain-specific score was calculated in relevant studies, and its change with follow-up time was explored by sub-group analysis. A total of six studies containing 4423 patients were included. Men underwent RP was associated with worse urinary and sexual domain score than EBRT (standardized mean difference (SMD) = -0...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220067/gene-expression-and-fatigue-in-puerto-rican-men-during-radiotherapy-for-prostate-cancer-an-exploratory-study
#16
Velda J Gonzalez, Leorey N Saligan, Brooke L Fridley, Humberto Ortiz-Zuazaga, Lauren S Aaronson
OBJECTIVE: To examine the trajectory of fatigue experienced by 26 Puerto Rican (PR) men over the course of External Beam Radiation Therapy (EBRT) and to assess gene expression changes from baseline to midpoint of EBRT using microarray technology. Design/Research Approach- Prospective exploratory and comparative design study. Setting- RT facility located in San Juan, PR. Sample/Participants-26 PR men with non-metastatic prostate cancer. METHODS: Participants completed 2 paper forms: demographics and the Spanish version of the 13-item FACT-fatigue at baseline, midpoint, and end of EBRT...
December 2017: Puerto Rico Health Sciences Journal
https://www.readbyqxmd.com/read/29208480/robotic-stereotactic-retreatment-for-biochemical-control-in-previously-irradiated-patients-affected-by-recurrent-prostate-cancer
#17
M Loi, V Di Cataldo, G Simontacchi, B Detti, P Bonomo, L Masi, I Desideri, D Greto, G Francolini, V Carfora, D Pezzulla, M Perna, G A Carta, L Livi
AIMS: Robotic stereotactic body radiotherapy (rSBRT) to local recurrences emerged as a valuable option for exclusive local failure after prior external beam radiation therapy (EBRT) for localised prostate cancer. The aim of this study was to assess the efficacy and safety of rSBRT in patients experiencing locally recurrent prostate cancer after prior definitive or postoperative radiotherapy using the Cyberknife. MATERIALS AND METHODS: Data from 50 patients were retrospectively reviewed...
December 2, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/29206662/surgery-versus-radiation-treatment-for-high-grade-neuroendocrine-cancer-of-uterine-cervix-a-surveillance-epidemiology-and-end-results-database-analysis
#18
Wei-Hsien Hou, Tim E Schultheiss, Jeffrey Y Wong, Mark T Wakabayashi, Yi-Jen Chen
OBJECTIVES: The objective of this study was to assess treatment and other factors impacting survival in cervical high-grade neuroendocrine carcinoma (HGNEC). METHODS/MATERIALS: We identified patients with cervical HGNECs diagnosed during 1988 to 2012 in the Surveillance Epidemiology and End Results database. We determined overall survival by International Federation of Gynecology and Obstetrics stages and by local treatment modalities, that is, radical surgery versus external beam radiation treatment (EBRT) plus brachytherapy using Kaplan-Meier analysis with log-rank test...
January 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29204167/interstitial-brachytherapy-for-orbital-soft-tissue-sarcoma-an-innovative-technique
#19
Siddhartha Laskar, Avinash Pilar, Nehal Khanna, Yogesh Ghadi
Purpose: To report an innovative technique of interstitial brachytherapy developed for treatment of orbital soft tissue tumors. Material and methods: A 4-month-old child diagnosed with rhabdomyosarcoma of orbit was treated with multiagent chemotherapy (CTh) and brachytherapy. Pre-planning computed tomography (CT) images were obtained and clinical target volume (CTV) was defined using the pre-treatment magnetic resonance imaging (MRI). Brachytherapy plan was generated for deciding optimal catheter placement...
October 2017: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/29204166/patterns-of-care-and-survival-outcomes-after-treatment-for-uveal-melanoma-in-the-post-coms-era-2004-2013-a-surveillance-epidemiology-and-end-results-analysis
#20
Yuan James Rao, Julia Sein, Shahed Badiyan, Julie K Schwarz, Todd DeWees, Perry Grigsby, Prabakar Kumar Rao
Purpose: The Collaborative Ocular Melanoma Study (COMS) established modern treatment recommendations for uveal melanoma. We aim to evaluate patterns of care and survival outcomes in the time after COMS. Material and methods: The retrospective study population includes 2,611 patients in the SEER database treated for uveal melanoma between 2004-2013. Patients stage were T1-4N0M0. Data analyzed included age, clinical stage, tumor size, race, and treatment. Treatments included enucleation (EN) and globe preserving therapy (GPT), which consisted of limited surgical resection or ablation (LSRA), external beam radiation (EBRT), or brachytherapy (BT)...
October 2017: Journal of Contemporary Brachytherapy
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