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Radiation oncology radiotherapy

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https://www.readbyqxmd.com/read/28731537/frailty-and-cancer-implications-for-oncology-surgery-medical-oncology-and-radiation-oncology
#1
REVIEW
Cecilia G Ethun, Mehmet A Bilen, Ashesh B Jani, Shishir K Maithel, Kenneth Ogan, Viraj A Master
Answer questions and earn CME/CNE The concept of frailty has become increasingly recognized as one of the most important issues in health care and health outcomes and is of particular importance in patients with cancer who are receiving treatment with surgery, chemotherapy, and radiotherapy. Because both cancer itself, as well as the therapies offered, can be significant additional stressors that challenge a patient's physiologic reserve, the incidence of frailty in older patients with cancer is especially high-it is estimated that over one-half of older patients with cancer have frailty or prefrailty...
July 21, 2017: CA: a Cancer Journal for Clinicians
https://www.readbyqxmd.com/read/28717901/performance-assessment-of-a-programmable-five-degrees-of-freedom-motion-platform-for-quality-assurance-of-motion-management-techniques-in-radiotherapy
#2
Chen-Yu Huang, Paul Keall, Adam Rice, Emma Colvill, Jin Aun Ng, Jeremy T Booth
Inter-fraction and intra-fraction motion management methods are increasingly applied clinically and require the development of advanced motion platforms to facilitate testing and quality assurance program development. The aim of this study was to assess the performance of a 5 degrees-of-freedom (DoF) programmable motion platform HexaMotion (ScandiDos, Uppsala, Sweden) towards clinically observed tumor motion range, velocity, acceleration and the accuracy requirements of SABR prescribed in AAPM Task Group 142...
July 17, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28713771/integrating-hyperthermia-into-modern-radiation-oncology-what-evidence-is-necessary
#3
REVIEW
Jan C Peeken, Peter Vaupel, Stephanie E Combs
Hyperthermia (HT) is one of the hot topics that have been discussed over decades. However, it never made its way into primetime. The basic biological rationale of heat to enhance the effect of radiation, chemotherapeutic agents, and immunotherapy is evident. Preclinical work has confirmed this effect. HT may trigger changes in perfusion and oxygenation as well as inhibition of DNA repair mechanisms. Moreover, there is evidence for immune stimulation and the induction of systemic immune responses. Despite the increasing number of solid clinical studies, only few centers have included this adjuvant treatment into their repertoire...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28702770/oncologic-outcomes-after-treatment-for-mri-occult-breast-cancer-pt0n
#4
Damian P McCartan, Emily C Zabor, Monica Morrow, Kimberly J Van Zee, Mahmoud B El-Tamer
BACKGROUND: Studies assessing outcomes in occult breast cancer have often included women treated before the routine use of magnetic resonance imaging (MRI). This study examined outcomes for patients presenting with axillary adenopathy and no primary breast tumor detectable by MRI or other imaging methods. METHODS: All patients with axillary nodal metastases consistent with breast carcinoma and no breast primary tumor detectable by physical exam, mammography, or MRI treated between 1 January 1996 and 30 June 2011 were identified from an institutional database...
July 12, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28697786/spinal-bone-metastases-in-colorectal-cancer-a-retrospective-analysis-of-stability-prognostic-factors-and-survival-after-palliative-radiotherapy
#5
Tilman Bostel, Robert Förster, Ingmar Schlampp, Tania Sprave, Thomas Bruckner, Nils Henrik Nicolay, Stefan Ezechiel Welte, Jürgen Debus, Harald Rief
BACKGROUND: This retrospective analysis aimed to analyse the stability of spinal bone metastases in colorectal cancer (CRC) patients following radiotherapy (RT) by use of a validated score and to assess prognostic factors for stability and survival. METHODS: Ninety-four patients with osteolytic spinal bone metastases from CRC were treated at the Department of Radiation Oncology at the University Hospital Heidelberg between 2000 and 2014. The stability of each affected vertebral body was assessed according to the validated Taneichi bone stability score on the basis of the treatment planning CT scan prior to RT and also based on the follow-up CT examinations at 3 and 6 months after RT...
July 11, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28695316/interobserver-variability-in-target-volume-delineation-of-hepatocellular-carcinoma-an-analysis-of-the-working-group-stereotactic-radiotherapy-of-the-german-society-for-radiation-oncology-degro
#6
E Gkika, S Tanadini-Lang, S Kirste, P A Holzner, H P Neeff, H C Rischke, T Reese, F Lohaus, M N Duma, K Dieckmann, R Semrau, M Stockinger, D Imhoff, N Kremers, M F Häfner, N Andratschke, U Nestle, A L Grosu, M Guckenberger, T B Brunner
BACKGROUND: Definition of gross tumor volume (GTV) in hepatocellular carcinoma (HCC) requires dedicated imaging in multiple contrast medium phases. The aim of this study was to evaluate the interobserver agreement (IOA) in gross tumor delineation of HCC in a multicenter panel. METHODS: The analysis was performed within the "Stereotactic Radiotherapy" working group of the German Society for Radiation Oncology (DEGRO). The GTVs of three anonymized HCC cases were delineated by 16 physicians from nine centers using multiphasic CT scans...
July 10, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28690104/a-clinical-perspective-on-regional-nodal-irradiation-for-breast-cancer
#7
Amy C Moreno, Simona F Shaitelman, Thomas A Buchholz
The goal of regional treatments in breast cancer should be to eradicate any disease within lymph nodes, avoid regional recurrences, minimize the risk of distant metastases, and improve survival. In addition, regional treatments should focus on reducing potential morbidities and optimizing the long-term quality of life of breast cancer survivors. While data from recent surgical and radiation trials have helped clarify many issues regarding regional treatment, there still remains controversy as to the optimal approach for patients with "intermediate risk" disease...
July 6, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28688020/salvage-therapy-options-for-local-prostate-cancer-recurrence-after-primary-radiotherapy-a-literature-review
#8
REVIEW
Nicole M Golbari, Aaron E Katz
PURPOSE OF REVIEW: While recurrence after primary treatment of prostate cancer (PCa) is not uncommon, there is currently no consensus on the most appropriate management after radiation treatment failure. This article seeks to explore the currently utilized modalities for salvage treatment for radiorecurrent PCa. We focused our review on the oncologic outcomes and reported toxicity rates in the latest studies examining salvage radical prostatectomy (SRP), salvage cryotherapy (SCT), salvage high-intensity focused ultrasound (HIFU) and re-irradiation...
August 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28687923/lapatinib-with-whole-brain-radiotherapy-in-patients-with-brain-metastases-from-breast-and-non-small-cell-lung-cancer-a-phase-ii-study-of-the-hellenic-cooperative-oncology-group-hecog
#9
Christos Christodoulou, Anna Kalogera-Fountzila, Vasilios Karavasilis, George Kouvatseas, Christos N Papandreou, Epaminontas Samantas, Kalliopi Varaki, Georgios Papadopoulos, Mattheos Bobos, Grigorios Rallis, Evangelia Razis, Athina Goudopoulou, Konstantine T Kalogeras, Konstantinos N Syrigos, George Fountzilas
Small molecules, mainly tyrosine kinase inhibitors, are currently used in various malignancies. Lapatinib, a dual inhibitor of EGFR/HER2 tyrosine kinases, has demonstrated effectiveness in brain metastases from HER2-overexpressing breast cancer. It also appears to sensitize EGFR-expressing cell lines to radiation. To evaluate the efficacy of lapatinib in combination with whole brain radiotherapy (WBRT) in patients with brain metastases from non-small cell lung cancer (NSCLC) and breast cancer, as assessed by volumetric analysis by MRI...
July 7, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28679064/implication-of-micrornas-in-the-development-and-potential-treatment-of-radiation-induced-heart-disease
#10
Branislav Kura, Pavel Babal, Jan Slezak
Radiotherapy is the most commonly used methodology to treat oncological disease that is one of the most widespread cause of death worldwide. Oncological patients cured by radiotherapy applied to the mediastinal area have been shown to suffer from cardiovascular disease. The increase in the prevalence of radiation-induced heart disease has emphasized the need to seek new therapeutic targets to mitigate the negative impact of radiation on the heart. In this regard microRNAs (miRNAs) have received considerable interest...
July 5, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28666551/european-organization-for-research-and-treatment-of-cancer-eortc-recommendations-for-planning-and-delivery-of-high-dose-high-precision-radiotherapy-for-lung-cancer
#11
Dirk De Ruysscher, Corinne Faivre-Finn, Ditte Moeller, Ursula Nestle, Coen W Hurkmans, Cécile Le Péchoux, José Belderbos, Matthias Guckenberger, Suresh Senan
PURPOSE: To update literature-based recommendations for techniques used in high-precision thoracic radiotherapy for lung cancer, in both routine practice and clinical trials. METHODS: A literature search was performed to identify published articles that were considered clinically relevant and practical to use. Recommendations were categorised under the following headings: patient positioning and immobilisation, Tumour and nodal changes, CT and FDG-PET imaging, target volumes definition, radiotherapy treatment planning and treatment delivery...
June 27, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28662794/lessons-learnt-from-past-incidents-and-accidents-in-radiation-oncology
#12
T Knöös
The purpose of this report is to review and compile what have been and can be learnt from incidents and accidents in radiation oncology, especially in external beam and brachytherapy. Some major accidents from the last 20 years will be discussed. The relationship between major events and minor or so-called near misses is mentioned, leading to the next topic of exploring the knowledge hidden among them. The main lessons learnt from the discussion here and elsewhere are that a well-functioning and safe radiotherapy department should help staff to work with awareness and alertness and that documentation and procedures should be in place and known by everyone...
June 26, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28657906/radiogenomics-and-radiotherapy-response-modeling
#13
Issam El Naqa, Sarah L Kerns, James Coates, Yi Luo, Corey Speers, Catharine M L West, Barry S Rosenstein, Randall K Ten Haken
Advances in patient-specific information and biotechnology have contributed to a new era of computational medicine. Radiogenomics has emerged as a new field that investigates the role of genetics in treatment response to radiation therapy. Radiation oncology is currently attempting to embrace these recent advances and add to its rich history by maintaining its prominent role as a quantitative leader in oncologic response modeling. Here, we provide an overview of radiogenomics starting with genotyping, data aggregation, and application of different modeling approaches based on modifying traditional radiobiological methods or application of advanced machine learning techniques...
June 28, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28656373/salvage-radiotherapy-for-macroscopic-local-recurrences-after-radical-prostatectomy-a%C3%A2-national-survey-on-patterns-of-practice
#14
Alan Dal Pra, Cedric Panje, Thomas Zilli, Winfried Arnold, Kathrin Brouwer, Helena Garcia, Markus Glatzer, Silvia Gomez, Fernanda Herrera, Khanfir Kaouthar, Alexandros Papachristofilou, Gianfranco Pesce, Christiane Reuter, Hansjörg Vees, Daniel Rudolf Zwahlen, Daniel Engeler, Paul Martin Putora
INTRODUCTION: Although salvage radiotherapy (SRT) for PSA recurrence after radical prostatectomy provides better oncological outcomes when delivered early, in the absence of detectable disease many patients are treated for macroscopic locally recurrent tumors. Due to limited data from prospective studies, we hypothesized an important variability in the SRT management of these patients. Our aim was to investigate current practice patterns of SRT for local macroscopic recurrence after radical prostatectomy...
June 27, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28654633/chemotherapy-with-radiotherapy-influences-time-to-development-of-radiation-induced-sarcomas-a-multicenter-study
#15
A Y Zhang, I Judson, C Benson, J S Wunder, I Ray-Coquard, R J Grimer, R Quek, E Wong, A B Miah, P C Ferguson, A Dufresne, J Y H Teh, M Stockler, M H N Tattersall
BACKGROUND: An increasing number and proportion of cancer patients with apparently localised disease are treated with chemotherapy and radiation therapy in contemporary oncology practice. In a pilot study of radiation-induced sarcoma (RIS) patients, we demonstrated that chemotherapy was associated with a reduced time to development of RIS. We now present a multi-centre collaborative study to validate this association. METHODS: This was a retrospective cohort study of RIS cases across five large international sarcoma centres between 1 January 2000 to 31 December 2014...
June 27, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28648354/erratum-to-hypofractionated-radiotherapy-in-pancreatic-cancer-lessons-from-the-past-in-the-era-of-stereotactic-body-radiation-therapy-critical-reviews-in-oncology-hematology-103c-2016-49-61
#16
De Bari Berardino, Porta Laetitia, Mazzola Rosario, Alongi Filippo, Wagner Anna Dorothea, Schäfer Markus, Bourhis Jean, Ozsahin Mahmut
No abstract text is available yet for this article.
June 22, 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28644913/supplement-2-for-the-2004-update-of-the-aapm-task-group-no-43-report-joint-recommendations-by-the-aapm-and-gec-estro
#17
Mark J Rivard, Facundo Ballester, Wayne M Butler, Larry A DeWerd, Geoffrey S Ibbott, Ali S Meigooni, Christopher S Melhus, Michael G Mitch, Ravinder Nath, Panagiotis Papagiannis
Since publication of the 2004 update to the American Association of Physicists in Medicine (AAPM) Task Group No. 43 Report (TG-43U1) and its 2007 supplement (TG-43U1S1), several new low-energy photon-emitting brachytherapy sources have become available. Many of these sources have satisfied the AAPM prerequisites for routine clinical purposes and are posted on the Brachytherapy Seed Registry managed jointly by the AAPM and the Imaging and Radiation Oncology Core Houston Quality Assurance Center (IROC Houston)...
June 23, 2017: Medical Physics
https://www.readbyqxmd.com/read/28643731/cardiotoxic-effects-of-radiotherapy-and-strategies-to-reduce-them-in-patients-with-breast-cancer-an-overview
#18
REVIEW
Katarzyna Rygiel
Cardiotoxicity of various anticancer therapies, including radiotherapy (RT), can lead to cardiovascular (CV) complications, and their severity depends on many factors, including the site of action, the applied dose, the method of administration, the presence of pre-existing CV diseases, or CV risk factors, the individual patient characteristics, and the current or previous use of antineoplastic therapies. Cardiotoxicity can occur immediately upon administration of the anticancer therapy or it may have a delayed onset (months or years after the treatment)...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28642008/concurrent-once-daily-versus-twice-daily-chemoradiotherapy-in-patients-with-limited-stage-small-cell-lung-cancer-convert-an-open-label-phase-3-randomised-superiority-trial
#19
Corinne Faivre-Finn, Michael Snee, Linda Ashcroft, Wiebke Appel, Fabrice Barlesi, Adityanarayan Bhatnagar, Andrea Bezjak, Felipe Cardenal, Pierre Fournel, Susan Harden, Cecile Le Pechoux, Rhona McMenemin, Nazia Mohammed, Mary O'Brien, Jason Pantarotto, Veerle Surmont, Jan P Van Meerbeeck, Penella J Woll, Paul Lorigan, Fiona Blackhall
BACKGROUND: Concurrent chemoradiotherapy is the standard of care in limited-stage small-cell lung cancer, but the optimal radiotherapy schedule and dose remains controversial. The aim of this study was to establish a standard chemoradiotherapy treatment regimen in limited-stage small-cell lung cancer. METHODS: The CONVERT trial was an open-label, phase 3, randomised superiority trial. We enrolled adult patients (aged ≥18 years) who had cytologically or histologically confirmed limited-stage small-cell lung cancer, Eastern Cooperative Oncology Group performance status of 0-2, and adequate pulmonary function...
June 19, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28640950/development-of-a-monte-carlo-multiple-source-model-for-inclusion-in-a-dose-calculation-auditing-tool
#20
Austin M Faught, Scott E Davidson, Jonas Fontenot, Stephen F Kry, Carol Etzel, Geoffrey S Ibbott, David S Followill
PURPOSE: The Imaging and Radiation Oncology Core Houston (IROC-H) (formerly the Radiological Physics Center) has reported varying levels of agreement in their anthropomorphic phantom audits. There is reason to believe one source of error in this observed disagreement is the accuracy of the dose calculation algorithms and heterogeneity corrections used. To audit this component of the radiotherapy treatment process an independent dose calculation tool is needed. METHODS: Monte Carlo multiple source models for Elekta 6MV and 10MV therapeutic x-ray beams were commissioned based on measurement of central axis depth dose data for a 10 x 10 cm(2) field size and dose profiles for a 40 x 40 cm(2) field size...
June 22, 2017: Medical Physics
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