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"radiation oncology"

S Tonoli, D Alterio, O Caspiani, A Bacigalupo, F Bunkheila, M Cianciulli, A Merlotti, A Podhradska, M Rampino, D Cante, L Bruschieri, R Gatta, S M Magrini
PURPOSE: To evaluate the outcomes with respect to long-term survival and toxicity in patients with nasopharyngeal carcinoma (NPC) treated in a European country with low incidence. MATERIALS AND METHODS: A prospective observational study carried out by the AIRO Head and Neck group in 12 Italian institutions included 136 consecutive patients treated with radiotherapy (RT) ± chemotherapy (CHT) for NPC (without distant metastasis) between January 1, 2008 and December 31, 2010...
October 19, 2016: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
Timothy M Zagar, Amanda E D Van Swearingen, Orit Kaidar-Person, Matthew G Ewend, Carey K Anders
This review summarizes the most up-to-date approach to the multidisciplinary management of patients with breast cancer brain metastases. A brief overview of the epidemiology and biology of breast cancer brain metastasis is provided. The perspectives of radiation oncology, neurosurgery, and medical oncology-and landmark studies from each discipline-are all discussed. We also offer practical tips to help guide the treating physician, including data on antiseizure medications. Finally, we introduce the concept of a multidisciplinary clinic that combines input from medical and radiation oncology, neurosurgery, and support services, which we developed at the University of North Carolina as a coordinated and optimal approach to the management of patients with this complex disease...
October 15, 2016: Oncology (Williston Park, NY)
Marco Krengli, Carla Pisani, Letizia Deantonio
The guidelines of the European and American Societies of Radiation Oncology (GEC-ESTRO and ASTRO) defined the selection criteria to offer partial breast irradiation (PBI) after lumpectomy in patients with low risk breast cancer regardless pre-operative staging. A recent publication by Tallet et al. explored the impact of preoperative magnetic resonance imaging (MRI) on patient eligibility for PBI. From their study, an ipsilateral BC was detected in 4% of patients, excluding these patients from intraoperative radiotherapy (IORT)...
September 2016: Journal of Thoracic Disease
C Gzell, M Back, H Wheeler, D Bailey, M Foote
The aim of this review is to explore the changing utility of radiotherapy in the treatment of patients with glioblastoma over the past 60 years. Together with surgery, radiotherapy has always been the cornerstone of treatment of glioblastoma, but techniques have significantly advanced over this time. The exploration of early two-dimensional techniques, investigation of dose escalation, concomitant chemotherapy and modern techniques, including intensity-modulated radiotherapy, image-guided radiotherapy, and volumetric-modulated arc therapy will be covered...
October 13, 2016: Clinical Oncology: a Journal of the Royal College of Radiologists
L Sim
The purpose of this study was to evaluate if MED610 3D printed material can be used as a surrogate for acrylic in the manufacturing of a replacement insert used in an eye plaque brachytherapy applicator. Measurement of the dose distributions from a standard acrylic insert were compared with dose obtained from MED610 3D printed replica using GafChromic(®) EBT3 films. The study used a 15 mm Radiation Oncology Physics and Engineering Services, Australia (ROPES) type eye plaque applicator loaded with I-125 (model 6711) seeds...
October 11, 2016: Australasian Physical & Engineering Sciences in Medicine
Shalini K Vinod, Michael G Jameson, Myo Min, Lois C Holloway
BACKGROUND AND PURPOSE: Volume delineation is a well-recognised potential source of error in radiotherapy. Whilst it is important to quantify the degree of interobserver variability (IOV) in volume delineation, the resulting impact on dosimetry and clinical outcomes is a more relevant endpoint. We performed a literature review of studies evaluating IOV in target volume and organ-at-risk (OAR) delineation in order to analyse these with respect to the metrics used, reporting of dosimetric consequences, and use of statistical tests...
October 8, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
Marta Martin-Richard, Angels Ginès, Juan Ramón Ayuso, Luis Sabater, Joan Fabregat, Ramiro Mendez, Glòria Fernández-Esparrach, Xavier Molero, Eva C Vaquero, Miriam Cuatrecasas, Antonio Ferrández, Joan Maurel
BACKGROUND AND OBJECTIVE: Clinical management of adenocarcinoma of the pancreas is complex, and requires a multidisciplinary approach. The same applies for the premalignant lesions that are increasingly being diagnosed. The current document is an update on the diagnosis and management of premalignant lesions and adenocarcinoma of the pancreas. PATIENTS AND METHODS: A conference to establish the basis of the literature review and manuscript redaction was organized by the Grupo Español Multidisciplinar en Cáncer Digestivo...
October 7, 2016: Medicina Clínica
Craig Evan Pollack, Michelle E Ross, Katrina Armstrong, Charles C Branas, Karin V Rhodes, Justin E Bekelman, Alicia Wentz, Christian Stillson, Archana Radhakrishnan, Enny Oyeniran, David Grande
PURPOSE: Prior work suggests that access to health care may influence the diagnosis and treatment of prostate cancer. Mystery-caller methods have been used previously to measure access to care for health services such as primary care, where patients' self-initiate requests for care. We used a mystery-caller survey for specialized prostate cancer care to assess dimensions of access to prostate cancer care. MATERIALS AND METHODS: We created an inventory of urology and radiation oncology practices in southeastern Pennsylvania...
2016: PloS One
Jinhyun Choi, Yong Bae Kim, Kyung Hwan Shin, Sung-Ja Ahn, Hyung-Sik Lee, Won Park, Su Ssan Kim, Jin Hee Kim, Kyu Chan Lee, Dong Won Kim, Hyun Suk Suh, Kyung Ran Park, Hyun Soo Shin, Chang-Ok Suh
PURPOSE: The aim of this study is to present the incidence of radiation pneumonitis (RP) reported within 6 months after treatment for breast cancer with or without internal mammary node irradiation (IMNI). METHODS: In the Korean Radiation Oncology Group (KROG) 08-06 phase III randomized trial, patients who were node-positive after surgery were randomly assigned to receive radiotherapy either with or without IMNI. A total of 747 patients were enrolled, and three-dimensional treatment planning with computed tomography simulation was performed for all patients...
September 2016: Journal of Breast Cancer
James D Mitchell, Thomas J Chesnut, David V Eastham, Carlo N Demandante, David J Hoopes
PURPOSE: In 2012, we instituted detailed prospective peer review of new cases. We present the outcomes of peer review on patient management and time required for peer review. METHODS AND MATERIALS: Peer review rounds were held 3 to 4 days weekly and required 2 physicians to review pertinent information from the electronic medical record and treatment planning system. Eight aspects were reviewed for each case: 1) workup and staging; 2) treatment intent and prescription; 3) position, immobilization, and simulation; 4) motion assessment and management; 5) target contours; 6) normal tissue contours; 7) target dosimetry; and 8) normal tissue dosimetry...
August 31, 2016: Practical Radiation Oncology
Oliver Oehlke, Michael Mix, Erika Graf, Tanja Schimek-Jasch, Ursula Nestle, Irina Götz, Sabine Schneider-Fuchs, Astrid Weyerbrock, Irina Mader, Brigitta G Baumert, Susan C Short, Philipp T Meyer, Wolfgang A Weber, Anca-Ligia Grosu
BACKGROUND: The higher specificity of amino-acid positron emission tomography (AA-PET) in the diagnosis of gliomas, as well as in the differentiation between recurrence and treatment-related alterations, in comparison to contrast enhancement in T1-weighted MRI was demonstrated in many studies and is the rationale for their implementation into radiation oncology treatment planning. Several clinical trials have demonstrated the significant differences between AA-PET and standard MRI concerning the definition of the gross tumor volume (GTV)...
October 5, 2016: BMC Cancer
Jing Yuan, Gladys Lo, Ann D King
Radiation therapy (RT), in particular intensity-modulated radiation therapy (IMRT), is becoming a more important nonsurgical treatment strategy in head and neck cancer (HNC). The further development of IMRT imposes more critical requirements on clinical imaging, and these requirements cannot be fully fulfilled by the existing radiotherapeutic imaging workhorse of X-ray based imaging methods. Magnetic resonance imaging (MRI) has increasingly gained more interests from radiation oncology community and holds great potential for RT applications, mainly due to its non-ionizing radiation nature and superior soft tissue image contrast...
August 2016: Quantitative Imaging in Medicine and Surgery
Abdulhamid Chaikh, Jacques Balosso
BACKGROUND: The risk of toxicity with radiation oncology for lung cancer limits the maximal radiation dose that can be delivered to thoracic tumors. This study aims at investigating the correlation between normal tissue complication probability (NTCP) and physical lung density by analyzing the computed tomography (CT) scan imaging used for radiotherapy dose planning. METHODS: Data from CT of lung cancer patients (n=10), treated with three dimensional radiotherapy, were selected for this study...
August 2016: Quantitative Imaging in Medicine and Surgery
Dilek Kutanis, Engin Erturk, Ahmet Besir, Yucel Demirci, Selcuk Kayir, Ali Akdogan, Birgul Vanizor Kural, Zumrut Bahat, Emine Canyilmaz, Hanife Kara
STUDY OBJECTIVE: To investigate the effects of dexmedetomidine on oxidative injury caused by ionizing radiation. DESIGN: Randomized controlled experimental study. SETTING: Department of radiation oncology and research laboratory of an academic hospital. INTERVENTIONS: Twenty-eight rats were randomized to 4 groups (n=7 per group). Group S rats were administered physiologic serum; group SR rats were administered physiologic serum and 10 Gy external ionizing radiation...
November 2016: Journal of Clinical Anesthesia
Mekhail Anwar, Yao Yu, Christine M Glastonbury, Ivan H El-Sayed, Sue S Yom
PURPOSE: The ophthalmic nerve (cranial nerve V-1) runs in close proximity to the globe, optic nerve, chiasm, and brain. The purpose of this study was to provide contouring guidance using computed tomography (CT)-identifiable landmarks, based on an analysis of skin cancer patients with V-1 invasion. METHODS AND MATERIALS: Radiation oncology planning CT scans were analyzed for landmarks to guide V-1 target delineation from the skin surface to the trigeminal ganglion...
March 16, 2016: Practical Radiation Oncology
Paul E Wallner, Anthony Gerdeman, Jennifer M Willis, Anthony L Zietman
Based on data obtained from clinical practice analysis (CPA) surveys performed in 2010 and 2013, and with input from its maintenance of certification (MOC) advisory committee, the American Board of Radiology (ABR) recognized that the changing nature of radiation oncology practice patterns warranted revisions of its MOC Part III cognitive examination. One significant revision was the introduction of a modular examination that allowed diplomates to select specific areas of clinical interest. The module-based items represented 30% (60 of 200) of total examination content...
May 7, 2016: Practical Radiation Oncology
Brian L Fish, Feng Gao, Jayashree Narayanan, Carmen Bergom, Elizabeth R Jacobs, Eric P Cohen, John E Moulder, Christie M Orschell, Meetha Medhora
The NIAID Radiation and Nuclear Countermeasures Program is developing medical agents to mitigate the acute and delayed effects of radiation that may occur from a radionuclear attack or accident. To date, most such medical countermeasures have been developed for single organ injuries. Angiotensin converting enzyme (ACE) inhibitors have been used to mitigate radiation-induced lung, skin, brain, and renal injuries in rats. ACE inhibitors have also been reported to decrease normal tissue complication in radiation oncology patients...
November 2016: Health Physics
Peter F Orio, Paul L Nguyen, Ivan Buzurovic, Daniel W Cail, Yu-Wei Chen
PURPOSE: The use of prostate brachytherapy has continued to decline in the United States. We examined the national practice patterns of both academic and nonacademic practices performing prostate brachytherapy by case volume per year to further characterize the decline and postulate the effect this trend might have on training the next generation of residents. METHODS AND MATERIALS: Men diagnosed with prostate cancer who had undergone radiation therapy in 2004 to 2012 were identified...
November 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Arpan V Prabhu, David R Hansberry, Nitin Agarwal, David A Clump, Dwight E Heron
PURPOSE: Physicians encourage patients to be informed about their health care options, but much of the online health care-related resources can be beneficial only if patients are capable of comprehending it. This study's aim was to assess the readability level of online patient education resources for radiation oncology to conclude whether they meet the general public's health literacy needs as determined by the guidelines of the United States National Institutes of Health (NIH) and the American Medical Association (AMA)...
November 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Camille Berriochoa, Matthew C Ward, Michael A Weller, Emma Holliday, Aaron Kusano, Charles R Thomas, Rahul D Tendulkar
PURPOSE: To characterize applicant interview experiences at radiation oncology residency programs during the 2016 match cycle and to assess applicant opinions regarding postinterview communication (PIC) after recent attention to gamesmanship noted in prior match cycles. METHODS AND MATERIALS: An anonymous, institutional review board-approved, 29-question survey was deployed following the rank order list deadline to all 2016 radiation oncology residency applicants applying to a single institution...
November 1, 2016: International Journal of Radiation Oncology, Biology, Physics
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