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International Journal of Radiation Oncology, Biology, Physics

Lori J Pierce, Mary Feng, Kent A Griffith, Reshma Jagsi, Thomas Boike, Daniel Dryden, Gregory S Gustafson, Lisa Benedetti, Martha M Matuszak, Teamour S Nurushev, Joe Haywood, Jeffrey D Radawski, Corey Speers, Eleanor M Walker, James A Hayman, Jean M Moran
PURPOSE: Limited data exist regarding the range of heart doses received in routine practice with radiation therapy (RT) for breast cancer in the United States today and the potential effect of the continual assessment of the cardiac dose on practice patterns. METHODS AND MATERIALS: From 2012 to 2015, 4688 patients with breast cancer treated with whole breast RT at 20 sites participating in a state-wide consortium were enrolled into a registry. The importance of limiting the cardiac dose has been emphasized in the consortium since 2012, and the mean heart dose (MHD) has been reported by each institution since 2014...
July 22, 2017: International Journal of Radiation Oncology, Biology, Physics
Inge M Krul, Annemieke W J Opstal-van Winden, Berthe M P Aleman, Cécile P M Janus, Anna M van Eggermond, Marie L De Bruin, Michael Hauptmann, Augustinus D G Krol, Michael Schaapveld, Annegien Broeks, Karen R Kooijman, Sandra Fase, Marnix L Lybeert, Josée M Zijlstra, Richard W M van der Maazen, Ausrele Kesminiene, Ibrahima Diallo, Florent de Vathaire, Nicola S Russell, Flora E van Leeuwen
BACKGROUND: Young women treated with chest radiation therapy (RT) for Hodgkin lymphoma (HL) experience a strongly increased risk of breast cancer (BC). It is unknown whether endogenous and exogenous gonadal hormones affect RT-associated BC risk. METHODS: We conducted a nested case-control study among female 5-year HL survivors treated before age 41. Hormone exposure and HL treatment data were collected through medical records and questionnaires for 174 BC case patients and 466 control patients...
July 18, 2017: International Journal of Radiation Oncology, Biology, Physics
Avishek Chatterjee, Monica Serban, Bassam Abdulkarim, Valerie Panet-Raymond, Luis Souhami, George Shenouda, Siham Sabri, Bertrand Jean-Claude, Jan Seuntjens
PURPOSE: The presence of multiple serial organs at risk (OARs) in close proximity to the tumor makes treatment planning for glioblastoma (GBM) complex and time consuming. The present study aimed to create a knowledge-based (KB) radiation therapy model for GBM patients using RapidPlan. METHODS AND MATERIALS: An initial model was trained using 82 glioblastoma patients treated with 60 Gy in 30 fractions. Plans were created using either volumetric modulated arc therapy (VMAT) or intensity modulated radiation therapy (IMRT)...
July 14, 2017: International Journal of Radiation Oncology, Biology, Physics
H Petra Kok, Linda Korshuize-van Straten, Akke Bakker, Rianne de Kroon-Oldenhof, Elisabeth D Geijsen, Lukas J A Stalpers, Johannes Crezee
BACKGROUND: Adequate tumor temperatures during hyperthermia are essential for good clinical response, but excessive heating of normal tissue should be avoided. This makes locoregional heating using phased array systems technically challenging. Online application of hyperthermia treatment planning could help to improve the heating quality. The aim of this study was to evaluate the clinical benefit of online treatment planning during treatment of pelvic tumors heated with the AMC-8 locoregional hyperthermia system...
July 14, 2017: International Journal of Radiation Oncology, Biology, Physics
Janice A Zawaski, Omaima M Sabek, Horatiu Voicu, Hon-Chiu Eastwood Leung, M Waleed Gaber
PURPOSE: Radiation therapy (RT) causes functional and transcriptomic changes in the brain; however, most studies have been carried out in normal rodent brains. Here, the long-term effect of irradiation and tumor presence during radiation was investigated. METHODS AND MATERIALS: Male Wistar rats ∼7 weeks old were divided into 3 groups: sham implant, RT+sham implant, and RT+tumor implant (C6 glioma). Hypofractionated irradiation (8 or 6 Gy/day for 5 days) was localized to a 1-cm strip of cranium starting 5 days after implantation, resulting in complete tumor regression and prolonged survival...
July 12, 2017: International Journal of Radiation Oncology, Biology, Physics
Stephen F Kralik, Gordon A Watson, Chie-Schin Shih, Chang Y Ho, Whitney Finke, Jeffrey Buchsbaum
PURPOSE: The purpose of this research was to evaluate the incidence, time to development, imaging patterns, risk factors, and clinical significance of large vessel cerebral vasculopathy in pediatric patients with brain tumors treated with proton radiation therapy. METHODS AND MATERIALS: A retrospective study was performed on 75 consecutive pediatric patients with primary brain tumors treated with proton radiation therapy. Radiation-induced large vessel cerebral vasculopathy (RLVCV) was defined as intracranial large vessel arterial stenosis or occlusion confirmed on magnetic resonance angiography, computed tomographic angiography, catheter angiography, or a combination of these within an anatomic region with previous exposure to proton beam therapy and not present before radiation therapy...
July 12, 2017: International Journal of Radiation Oncology, Biology, Physics
Nina N Sanford, Beow Y Yeap, Mykol Larvie, Juliane Daartz, John E Munzenrider, Norbert J Liebsch, Barbara Fullerton, Elizabeth Pan, Jay S Loeffler, Helen A Shih
PURPOSE: To assess the outcomes of benign meningiomas (BM) treated to two radiation dose levels. METHODS AND MATERIALS: We randomly assigned patients (1:1) with incompletely resected or recurrent BM to 2 radiation doses: 55.8 Gy(relative biological effectiveness [RBE]) and 63.0 Gy(RBE) of fractionated combined proton-photon radiation therapy. The primary endpoint was local control with hypothesis of improved tumor control with higher dose. Secondary endpoints included progression-free survival, overall survival, and rates of treatment-related toxicities...
July 12, 2017: International Journal of Radiation Oncology, Biology, Physics
Jérémy Lavigne, Frédéric Soysouvanh, Valérie Buard, Georges Tarlet, Olivier Guipaud, Vincent Paget, Fabien Milliat, Agnès François
PURPOSE: To investigate whether the endothelial pool of plasminogen activator inhibitor type 1 (PAI-1) plays a role in the development of radiation-induced lung damage, as previously demonstrated in the intestine. METHODS AND MATERIALS: Human lung microvascular endothelial cells were exposed to 10 Gy irradiation so as to study their ability to acquire an "activated" phenotype. Mice in which the Cre-Lox strategy was used to produce PAI-1 deletion specifically in the endothelial compartment were exposed to 17 Gy whole-thorax irradiation and followed up for 2, 13, and 23 weeks after irradiation...
July 11, 2017: International Journal of Radiation Oncology, Biology, Physics
Nathalie Arians, Meinhard Kieser, Laura Benner, Nathalie Rochet, Sonja Katayama, Florian Sterzing, Klaus Herfarth, Kai Schubert, Lars Schröder, Christina Leitzen, Andreas Schneeweiss, Christof Sohn, Jürgen Debus, Katja Lindel
PURPOSE: To assess treatment tolerance and toxicity rates of consolidative whole-abdominal radiation therapy (WART) following cytoreductive surgery and carboplatin/paclitaxel chemotherapy in high-risk patients with advanced ovarian cancer (International Federation of Gynecology and Obstetrics stage III) using intensity modulated radiation therapy. METHODS AND MATERIALS: The OVAR-IMRT-02 study is a multicenter, single-arm, phase 2 trial. Twenty patients with optimally debulked ovarian cancer (International Federation of Gynecology and Obstetrics stage III) with complete remission after chemotherapy were treated with intensity modulated WART as a consolidation therapy...
July 4, 2017: International Journal of Radiation Oncology, Biology, Physics
Jennifer Clarke, Elizabeth Neil, Robert Terziev, Philip Gutin, Igor Barani, Thomas Kaley, Andrew B Lassman, Timothy A Chan, Josh Yamada, Lisa DeAngelis, Ase Ballangrud, Robert Young, Katherine S Panageas, Kathryn Beal, Antonio Omuro
PURPOSE: To establish the maximum tolerated dose of a 3-fraction hypofractionated stereotactic reirradiation schedule when delivered with concomitant bevacizumab to treat recurrent high-grade gliomas. METHODS AND MATERIALS: Patients with recurrent high-grade glioma with Karnofsky performance status ≥60, history of standard fractionated initial radiation, tumor volume at recurrence ≤40 cm(3), and absence of brainstem or corpus callosum involvement were eligible...
June 30, 2017: International Journal of Radiation Oncology, Biology, Physics
Kirsten Merx, Uwe M Martens, Melanie Kripp, Thomas Hoehler, Michael Geissler, Timo Gaiser, Sabine Mai, Peter Kienle, Sebastian Belle, Christoph Plöger, Udo Hieber, Frederik Wenz, Stefan Post, Ralf D Hofheinz
PURPOSE: Studies investigating combinations of anti-epidermal growth factor receptor monoclonal antibodies such as panitumumab or cetuximab with standard chemoradiation therapy protocols in rectal cancer have yielded disappointing results. Because of the supposed negative interaction of epidermal growth factor receptor inhibition and chemoradiation therapy, we conducted a phase 2 study using single-agent panitumumab in combination with radiation therapy in patients with RAS wild-type locally advanced rectal cancer...
June 28, 2017: International Journal of Radiation Oncology, Biology, Physics
David M Routman, Ryan K Funk, Kanograt Tangsriwong, Alexander Lin, Michael G Keeney, Joaquín J García, Matthew A Zarka, Jason T Lewis, David G Stoddard, Eric J Moore, Courtney N Day, Qihui Zhai, Katharine A Price, John N Lukens, Samuel Swisher-McClure, Gregory S Weinstein, Bert W O'Malley, Robert L Foote, Daniel J Ma
PURPOSE: To evaluate whether historic risk categories and indications for adjuvant therapy in the pre-human papillomavirus (HPV) and pre-transoral surgery (TOS) era were associated with clinically significant relapse rates in HPV+ oropharyngeal squamous cell cancer patients undergoing TOS. METHODS AND MATERIALS: A multi-institutional retrospective review of intermediate- and high-risk HPV+ oropharyngeal squamous cell cancer patients not receiving adjuvant therapy after TOS was performed...
June 28, 2017: International Journal of Radiation Oncology, Biology, Physics
Jacqueline M Kruser, Sunpreet S Rakhra, Ryan M Sacotte, Firas H Wehbe, Alfred W Rademaker, Richard G Wunderink, Tim J Kruser
PURPOSE: To inform goals of care discussions at the time of palliative radiation therapy (RT) consultation, we sought to characterize intensive care unit (ICU) outcomes for patients treated with palliative RT compared to all other patients with metastatic cancer admitted to the ICU. METHODS AND MATERIALS: We conducted a retrospective cohort study of patients with metastatic cancer admitted to an ICU in a tertiary medical center from January 2010 to September 2015...
June 28, 2017: International Journal of Radiation Oncology, Biology, Physics
Robert T Dess, Adam L Liss, Kent A Griffith, Robin B Marsh, Jean M Moran, Charles Mayo, Todd M Koelling, Reshma Jagsi, James A Hayman, Lori J Pierce
PURPOSE: Regional nodal irradiation, including radiation therapy (RT) to the internal mammary node (IMN) region, improves oncologic outcomes in patients with node-positive breast cancer. Concern remains, however, given the proximity of the IMNs to the heart and the association between cardiac RT exposure and toxicity. The objective of the study was to evaluate rates of ischemic cardiac events (ICEs) and associated risk with treatment of the IMN region. METHODS AND MATERIALS: The cardiac outcomes of 2126 patients treated with adjuvant breast RT or breast and nodal RT from 1984 to 2007 at a single institution were reviewed...
June 27, 2017: International Journal of Radiation Oncology, Biology, Physics
Jean-Emmanuel Bibault, Sophie Dussart, Pascal Pommier, Magali Morelle, Marius Huguet, Pierre Boisselier, Bernard Coche-Dequeant, Marc Alfonsi, Etienne Bardet, Michel Rives, Valentin Calugaru, Enrique Chajon, Georges Noel, Hinda Mecellem, Stephanie Servagi Vernat, Lionel Perrier, Philippe Giraud
PURPOSE: The Advanced Radiotherapy Oto-Rhino-Laryngologie (ART-ORL) study (NCT02024035) was performed to prospectively evaluate the clinical and economic aspects of helical TomoTherapy and volumetric modulated arc therapy (RapidArc, Varian Medical Systems, Palo Alto, CA) for patients with head and neck cancer. METHODS AND MATERIALS: Fourteen centers participated in this prospective comparative study. Randomization was not possible based on the availability of equipment...
June 27, 2017: International Journal of Radiation Oncology, Biology, Physics
Elham Rahimy, Julian C Hong, Cary P Gross, Xin Hu, Pamela R Soulos, Timothy Shafman, Henry J Connor, Rudi Ross, James B Yu, Arie Dosoretz, Suzanne B Evans
PURPOSE: To analyze the relationship between angle number and mean heart dose (MHD) in adjuvant fixed gantry intensity modulated radiation therapy (FG-IMRT) treatment of left-sided breast cancer as is currently practiced in the community. METHODS AND MATERIALS: We performed a retrospective, multi-institutional review of women with left-sided breast cancer receiving adjuvant FG-IMRT between 2012 and 2014, encompassing 85 centers in 15 states. Bivariate and multivariate regression analyses were done to identify factors associated with MHD...
June 27, 2017: International Journal of Radiation Oncology, Biology, Physics
Daniel F Polan, Mary Feng, Theodore S Lawrence, Randall K Ten Haken, Kristy K Brock
PURPOSE: Understanding anatomic and functional changes in the liver resulting from radiation therapy is fundamental to the improvement of normal tissue complication probability models needed to advance personalized medicine. The ability to link pretreatment and posttreatment imaging is often compromised by significant dose-dependent volumetric changes within the liver that are currently not accounted for in deformable image registration (DIR) techniques. This study investigated using delivered dose, in combination with other patient factors, to biomechanically model longitudinal changes in liver anatomy for follow-up care and re-treatment planning...
June 27, 2017: International Journal of Radiation Oncology, Biology, Physics
Samual R Francis, Andrew Orton, Cameron Thorpe, Greg Stoddard, Shane Lloyd, Christopher J Anker
PURPOSE: Esophageal stenting is often considered to relieve dysphagia in patients with locoregionally advanced esophageal cancer. We sought to determine the effects of stenting on the incidence of acute toxicity and oncologic outcomes in patients undergoing chemoradiation therapy (CRT). METHODS AND MATERIALS: The data from patients treated with curative intent CRT for locoregionally advanced esophageal cancer at the University of Utah were retrospectively analyzed...
June 26, 2017: International Journal of Radiation Oncology, Biology, Physics
Anthony Zietman
No abstract text is available yet for this article.
October 1, 2017: International Journal of Radiation Oncology, Biology, Physics
Koichi Tokuuye
No abstract text is available yet for this article.
October 1, 2017: International Journal of Radiation Oncology, Biology, Physics
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