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Practical Radiation Oncology

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https://www.readbyqxmd.com/read/29122556/effect-of-imaging-frequency-on-ptv-margins-and-geographical-miss-during-image-guided-radiation-therapy-for-prostate-cancer
#1
Meetakshi Gupta, Poonam Gamre, Sadhana Kannan, Ganesh Rokde, Rahul Krishnatry, Vedang Murthy
BACKGROUND: The relationship between frequency of imaging during image guided radiation therapy (IGRT) and planning target volume (PTV) margin remains unclear. This issue is of practical significance given resource and time intensive nature of IGRT. The purpose of this study was to evaluate PTV margins with predefined and commonly used less-than-daily IGRT schedules using data obtained from patients treated with daily IGRT for prostate cancer. METHODS AND MATERIALS: Daily setup error and 3-dimensional daily alignment data for a total of 108 consecutive patients with prostate cancer treated with 2700 fractions of daily image guidance on tomotherapy were retrospectively analyzed...
October 7, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29141779/five-field-imrt-class-solutions-and-dosimetric-planning-guidelines-for-implementing-accelerated-partial-breast-irradiation
#2
Sarah Quirk, Petra Grendarova, Michael Roumeliotis
PURPOSE: A comprehensive set of planning guidelines was developed to aid in achieving reproducible dosimetric results for external beam accelerated partial breast irradiation (APBI). The methodology for the development of class solutions for dosimetric planning of the APBI technique, including dose constraint recommendations, is presented for target coverage and conformity as well as normal tissues. METHODS AND MATERIALS: A conservative patient setup was simulated on a linear accelerator, and a comprehensive arrangement of gantry and couch angles was measured for clearance...
September 28, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29122555/diffuse-recurrent-cutaneous-melanoma-of-the-scalp-and-neck-successfully-treated-with-volumetric-modulated-arc-therapy-and-concurrent-ipilimumab
#3
Ryan K Schmid, Amy Harker-Murray, Karen Niemczyk, Jared R Robbins
No abstract text is available yet for this article.
September 19, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29066161/proton-craniospinal-irradiation-during-the-third-trimester-of-pregnancy
#4
Anusha Kalbasi, Maura Kirk, Boon-Keng Kevin Teo, Eric Diffenderfer, Xuanfeng Ding, James McDonough, Erin Murphy, Christine Hill-Kayser
No abstract text is available yet for this article.
September 18, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29042120/pilot-study-on-the-impact-of-f18-labeled-thymidine-pet-ct-on-gross-tumor-volume-identification-and-definition-for-pancreatic-cancer
#5
Jennifer L Pretz, Michael A Blake, Joseph H Killoran, Harvey J Mamon, Jennifer Y Wo, Andrew X Zhu, Theodore S Hong
PURPOSE: Accurate target definition for radiation therapy planning in localized pancreatic cancer is critical, particularly when using strategies that omit elective coverage. Standard imaging modalities such as computed tomography (CT), magnetic resonance imaging, and endoscopic ultrasound have limited concordance with pathologic evaluation. Biologic imaging with [F18]-fluorodeoxyglucose (FDG)-positron emission tomography (PET) can also be difficult to interpret because increased activity is indicative of increased glucose metabolism, rather than cellular proliferation...
September 18, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29042119/walking-forward-a-narrative-from-south-dakota
#6
Daniel G Petereit
No abstract text is available yet for this article.
September 14, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28989001/hpv-related-nasopharyngeal-and-cervical-cancer-in-a-married-couple-in-north-america
#7
Daniel B Vanderbilt, Quoc-Anh Ho, Uma Goyal, Robert C Bell, Robert R Klein, Sun K Yi
No abstract text is available yet for this article.
September 8, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28988662/factors-associated-with-fatigue-in-prostate-cancer-pc-patients-undergoing-external-beam-radiation-therapy-ebrt
#8
Hann-Hsiang Chao, Abigail Doucette, David M Raizen, Neha Vapiwala
PURPOSE: Fatigue is a common adverse effect among cancer patients undergoing external beam radiation therapy (EBRT), yet the underlying disease- and treatment-related factors influencing its development are poorly understood. We hypothesized that clinical, demographic, and treatment-related factors differentially affect fatigue and aimed to better characterize variables related to fatigue development in prostate cancer (PC) patients during EBRT. METHODS AND MATERIALS: We identified a cohort of 681 patients with nonmetastatic PC undergoing a 6- to 9-week EBRT course...
September 8, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28951088/adherence-to-icru-83-reporting-recommendations-is-inadequate-in-prostate-dosimetry-studies
#9
Aishling Mohan, Elizabeth Forde
PURPOSE: This study aimed to investigate if the International Commission on Radiation Units and Measurements (ICRU) 83 recommendations for reporting dosimetric endpoints are followed in published prostate studies using modulated techniques. METHODS AND MATERIALS: Prostate dosimetry studies using inverse planning techniques were identified through a search of PubMed and EMBASE databases. These studies were analyzed to determine if the endpoints reported followed the recommendations outlined in ICRU-83...
August 31, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28943260/oncologist-cancer-patient-oncologist
#10
Joel E Tepper
No abstract text is available yet for this article.
August 31, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28666900/radiation-oncology-residency-selection-a-postgraduate-evaluation-of-factor-importance-and-survey-of-variables-associated-with-job-securement
#11
Jeffrey V Brower, Stanley L Liauw, Abhinav V Reddy, Daniel W Golden
BACKGROUND: Medical students often choose to pursue a career in radiation oncology with limited meaningful exposure to the field. We previously identified factors that were most influential to an applicant's rank list order. Here, we sought to assess if residency graduates had differing views regarding those factors. We also polled recent graduates' attitudes of the current job market. METHODS AND MATERIALS: An anonymous, internet-based survey was developed and distributed to graduates of radiation oncology residencies from 2003 through 2006 and 2012 through 2015 to assess the importance of factors with regard to residency selection, training, and job securement and attitudes toward the job market within the United States...
November 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28865684/causal-factors-for-error-in-radiation-oncology
#12
EDITORIAL
Suzanne B Evans
No abstract text is available yet for this article.
September 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28865683/evaluation-of-near-miss-and-adverse-events-in-radiation-oncology-using-a-comprehensive-causal-factor-taxonomy
#13
Matthew B Spraker, Robert Fain, Olga Gopan, Jing Zeng, Matthew Nyflot, Loucille Jordan, Gabrielle Kane, Eric Ford
PURPOSE: Incident learning systems (ILSs) are a popular strategy for improving safety in radiation oncology (RO) clinics, but few reports focus on the causes of errors in RO. The goal of this study was to test a causal factor taxonomy developed in 2012 by the American Association of Physicists in Medicine and adopted for use in the RO: Incident Learning System (RO-ILS). METHODS AND MATERIALS: Three hundred event reports were randomly selected from an institutional ILS database and Safety in Radiation Oncology (SAFRON), an international ILS...
September 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28596092/stereotactic-body-radiation-therapy-for-early-stage-non-small-cell-lung-cancer-executive-summary-of-an-astro-evidence-based-guideline
#14
Gregory M M Videtic, Jessica Donington, Meredith Giuliani, John Heinzerling, Tomer Z Karas, Chris R Kelsey, Brian E Lally, Karen Latzka, Simon S Lo, Drew Moghanaki, Benjamin Movsas, Andreas Rimner, Michael Roach, George Rodrigues, Shervin M Shirvani, Charles B Simone, Robert Timmerman, Megan E Daly
PURPOSE: This guideline presents evidence-based recommendations for stereotactic body radiation therapy (SBRT) in challenging clinical scenarios in early-stage non-small cell lung cancer (NSCLC). METHODS AND MATERIALS: The American Society for Radiation Oncology convened a task force to perform a systematic literature review on 4 key questions addressing: (1) application of SBRT to operable patients; (2) appropriate use of SBRT in tumors that are centrally located, large, multifocal, or unbiopsied; (3) individual tailoring of SBRT in "high-risk" clinical scenarios; and (4) SBRT as salvage therapy after recurrence...
September 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28462896/improving-radiation-oncology-providers-workload-and-performance-can-simulation-based-training-help
#15
Lukasz M Mazur, Prithima R Mosaly, Gregg Tracton, Marjorie P Stiegler, Robert D Adams, Bhishamjit S Chera, Lawrence B Marks
PURPOSE: To help with ongoing safety challenges in radiation therapy (RT), the objective of this research was to develop and assess the impact of a simulation-based training intervention on radiation oncology providers' workload and performance during treatment planning and quality assurance (QA) tasks. METHODS AND MATERIALS: Eighteen radiation oncology professionals completed routine treatment planning and QA tasks on 2 clinical scenarios in a simulation laboratory as part of a prospective institutional review board-approved study...
September 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28462895/irradiation-of-anatomically-defined-pelvic-subsites-and-acute-hematologic-toxicity-in-anal-cancer-patients-undergoing-chemoradiation
#16
Brent Rose, Devarati Mitra, Theodore S Hong, Kyung-Wook Jee, Andrzej Niemierko, Lorraine N Drapek, Lawrence S Blaszkowsky, Jill N Allen, Janet E Murphy, Jeffrey W Clark, David P Ryan, Jennifer Y Wo
PURPOSE: Chemoradiation for the treatment of anal cancer is known to cause significant hematologic toxicity (HT). We sought to investigate if radiation dose to specific pelvic subsites is associated with increased HT risk. METHODS AND MATERIALS: Forty-five patients with nonmetastatic anal cancer who received definitive chemoradiation with intensity modulated radiation therapy and concurrent mitomycin-C and 5-fluorouracil were studied. Total pelvic bone marrow (TBM) was divided into 3 subsites: lumbosacral bone marrow (LSBM), including the entire sacrum and L5 vertebral body; iliac bone marrow (IBM) extending from the iliac crests to the superior border of the femoral head; and lower pelvic bone marrow, including the pubic bones, ischia, acetabula, and proximal femurs...
September 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28442242/dosimetric-analysis-of-liver-toxicity-after-liver-metastasis-stereotactic-body-radiation-therapy
#17
Aisling Barry, Andrew McPartlin, Patricia Lindsay, Lisa Wang, James Brierley, John Kim, Jolie Ringash, Rebecca Wong, Rob Dinniwell, Tim Craig, Laura A Dawson
PURPOSE: The aim of this study is to describe the incidence and type of liver toxicity seen following liver metastases stereotactic body radiation therapy (SBRT) and the corresponding clinical and dosimetric factors associated with toxicity. METHODS AND MATERIALS: Between 2002 and 2009, 81 evaluable patients with liver metastases were treated on 2 prospective studies assessing SBRT, with prescription doses based on the effective liver volume irradiated evaluated...
September 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28433524/an-analysis-of-knowledge-based-planning-for-stereotactic-body-radiation-therapy-of-the-spine
#18
Joseph J Foy, Robin Marsh, Randall K Ten Haken, Kelly C Younge, Matthew Schipper, Yilun Sun, Dawn Owen, Martha M Matuszak
PURPOSE: Planning for spine stereotactic body radiation therapy (SBRT) is time consuming, and differences in planner experience and technique result in discrepancies in plan quality between facilities. Here, knowledge-based planning is analyzed to determine if it may be effective in improving the quality and efficiency of spine SBRT planning. MATERIALS AND METHODS: Thirty-eight spine SBRT cases were collected from the University of Michigan database and inverse planned to deliver 3 10-Gy fractions to the planning target volume (PTV)...
September 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28433523/association-of-preresidency-peer-reviewed-publications-with-radiation-oncology-resident-choice-of-academic-versus-private-practice-career
#19
Shearwood McClelland, Charles R Thomas, Lynn D Wilson, Emma B Holliday, Jerry J Jaboin
INTRODUCTION: The decision of radiation oncology residents to pursue academic versus private practice careers plays a central role in shaping the present and future of the field, but factors that are potentially predictive of this decision are lacking. This study was performed to examine the role of several factors publicly available before residency on postresidency career choice, including preresidency peer-reviewed publications (PRPs), which have been associated with resident career choice in comparably competitive subspecialties such as neurosurgery...
September 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28428018/visual-analytics-dashboard-to-explore-the-relationship-of-unscheduled-treatment-interruptions-and-variations-in-airway-management-for-children-undergoing-external-beam-radiation-therapy
#20
Pandora Chua, Christine Hill-Kayser, Luis M Ahumada, Ali Jalal, Allan F Simpao, Arul M Lingappan, Abbas Jawad, Mohamed A Rehman, Jorge A Gálvez
No abstract text is available yet for this article.
September 2017: Practical Radiation Oncology
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