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Practical Radiation Oncology

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https://www.readbyqxmd.com/read/29329998/common-error-pathways-seen-in-the-ro-ils-data-that-demonstrate-opportunities-for-improving-treatment-safety
#1
Gary Ezzell, Bhisham Chera, Adam Dicker, Eric Ford, Louis Potters, Lakshmi Santanam, Sheri Weintraub
PURPOSE: The Radiation Oncology Incident Learning System (RO-ILS) receives event reports from facilities across the country. This effort extracted common error pathways seen in the data. These pathways, expressed as fault trees, demonstrate the need for, and opportunities for, preventing these errors and/or limiting their propagation to treatment. METHODS AND MATERIALS: As of the third quarter of 2016, 2344 event reports had been submitted to RO-ILS and reviewed...
January 9, 2018: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29306641/testicular-seminoma-scattered-radiation-dose-to-the-contralateral-testis-in-the-modern-era
#2
Hester Lieng, Peter Chung, Tony Lam, Padraig Warde, Tim Craig
PURPOSE: Limited data exist on testicular dose measurements using modern radiation treatment techniques and volumes for testicular seminoma. The aim of this study was to report the testicular dose using in vivo measurements in men with testicular seminoma receiving abdominopelvic radiation therapy (APRT) and a modified dog-leg field with and without gonadal shielding. METHODS AND MATERIALS: Men with histologically confirmed testicular seminoma, either newly diagnosed stage II disease or isolated retroperitoneal relapse on surveillance for stage I disease, treated with APRT had testicular dose measurements recorded using MOSFET dosimeters...
January 3, 2018: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29291965/optimal-imaging-surveillance-after-stereotactic-ablative-radiation-therapy-for-early-stage-non-small-cell-lung-cancer-findings-of-an-international-delphi-consensus-study
#3
Timothy K Nguyen, Suresh Senan, Jeffery D Bradley, Kevin Franks, Meredith Giuliani, Matthias Guckenberger, Mark Landis, Billy W Loo, Alexander V Louie, Hiroshi Onishi, Heidi Schmidt, Robert Timmerman, Gregory M M Videtic, David A Palma
PURPOSE: Imaging after stereotactic ablative radiation therapy (SABR) for early-stage non-small cell lung cancer can detect recurrences and second primary lung cancers; however, the optimal follow-up practice of these patients remains unclear. We sought to establish consensus recommendations for surveillance after SABR. METHODS AND MATERIALS: International opinion leaders in thoracic radiation oncology and radiology were invited to participate (n = 31), with 11 accepting (9 radiation oncologists, 2 radiologists)...
December 29, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29331512/a-format-for-reviewing-a-research-paper
#4
Robert J Amdur
No abstract text is available yet for this article.
November 11, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29310978/bowel-and-urinary-quality-of-life-after-whole-pelvic-versus-prostate-only-volumetric-modulated-arc-therapy-for-localized-prostate-cancer
#5
Kentaro Ishii, Toshiko Yamanaga, Ryo Ogino, Yukinari Hosokawa, Shun Kishimoto, Ryuta Nakahara, Chiaki Shimada, Ryu Kawamorita, Takuhito Tada, Yoshiki Hayashi, Toshifumi Nakajima
PURPOSE: This study aimed to compare bowel and urinary health-related quality of life (HRQOL) between prostate-only (PO) volumetric modulated arc therapy (VMAT) and whole-pelvis (WP) VMAT in patients with localized prostate cancer. METHODS AND MATERIALS: A total of 234 patients treated with definitive VMAT to 78 Gy in 39 fractions were enrolled. Of these, 108 patients received PO-VMAT and 126 patients received initial WP-VMAT to 46.8 Gy in 26 fractions using a simultaneous integrated boost technique...
November 5, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29331513/multiple-myeloma-and-a-mischievous-pacemaker-a-teaching-case-involving-irradiation-of-a-cardiovascular-implantable-electronic-device
#6
Shane Lloyd, Olivier Morin, Isaac Whitman, David Raleigh, Shannon Fogh, Paul Menzel
No abstract text is available yet for this article.
November 4, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29329997/clinical-log-data-analysis-for-assessing-the-accuracy-of-the-cyberknife-fiducial-free-lung-tumor-tracking-system
#7
Masao Nakayama, Hideki Nishimura, Hiroshi Mayahara, Masaki Nakamura, Kazuyuki Uehara, Shinji Tsudou, Aya Harada, Hiroaki Akasaka, Ryohei Sasaki
PURPOSE: The CyberKnife Xsight Lung Tracking (XLT) and 1-View tracking systems can synchronize beam targeting to a visible lung tumor with respiratory motion during irradiation without requiring internal fiducial markers. The systems use a correlation model that relates external marker positions to tumor positions as well as a prediction model that predicts the target's future position. In this study, the correlation and prediction model uncertainties related to the CyberKnife fiducial-free tumor tracking system were evaluated using clinical log data...
November 4, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29329996/to-prep-or-not-to-prep-that-is-the-question-a-randomized-trial-on-the-use-of-antiflatulent-medication-as-part-of-bowel-preparation-for-patients-having-image-guided-external-beam-radiation-therapy-to-the-prostate
#8
Merrylee McGuffin, Naila Devji, Lyann Kehoe, Anne Carty, Steve Russell, Lisa Di Prospero, Carlo DeAngelis, Alex Kiss, Danny Vesprini, Andrew Loblaw, Laura D'Alimonte
INTRODUCTION: Radiation therapy is a standard treatment option for prostate cancer. With growing use of escalated doses and tighter margins, procedures to limit rectal size variation are needed to reduce prostate motion, increase treatment accuracy, and minimize rectal toxicity. This prospective study was done to determine whether the introduction of an antiflatulent medication would decrease rectal distention at computed tomography (CT) simulation and throughout a course of radiation therapy...
November 4, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29305110/radiation-induced-undifferentiated-pleomorphic-sarcoma-of-the-heart-a-case-report
#9
Alexander K Tsai, Melissa A L Vyfhuis, Martha Francis, Fikru Merechi, Allen P Burke, William F Regine
No abstract text is available yet for this article.
November 4, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29291964/a-custom-made-mouthpiece-incorporating-tongue-depressors-and-elevators-to-reduce-radiation-induced-tongue-mucositis-during-carbon-ion-radiation-therapy-for-head-and-neck-cancer
#10
Hiroaki Ikawa, Masashi Koto, Daniel K Ebner, Ryo Takagi, Kazuhiko Hayashi, Hiroshi Tsuji, Tadashi Kamada
We introduce a custom-made mouthpiece for carbon-ion radiation therapy for head and neck malignancy. The mouthpiece incorporates either a tongue depressor or elevator depending on tumor location. The risk of tongue mucositis may be reduced without compromising therapeutic efficacy through mouthpiece shaping.
October 28, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29304991/a-multi-institutional-phase-2-trial-of-prostate-stereotactic-body-radiation-therapy-sbrt-using-continuous-real-time-evaluation-of-prostate-motion-with-patient-reported-quality-of-life
#11
William C Jackson, Robert T Dess, Dale W Litzenberg, Pin Li, Matthew Schipper, Seth A Rosenthal, Garrick C Chang, Eric M Horwitz, Robert A Price, Jeff M Michalski, Hiram A Gay, John T Wei, Mary Feng, Felix Y Feng, Howard M Sandler, Robert E Wallace, Daniel E Spratt, Daniel A Hamstra
PURPOSE: The use of stereotactic body radiation therapy (SBRT) for prostate cancer has been reported predominantly from single institutional studies, although concerns for broader adoption exist. METHODS AND MATERIALS: From 2011 through 2013, 66 men were accrued to a phase 2 trial at 5 centers. SBRT consisted of 5 fractions of 7.4 Gy to a total dose of 37 Gy using conventional linear accelerators. Electromagnetic transponders were used for motion management. Health-related quality of life (HRQOL) was evaluated via the Expanded Prostate Cancer Index Composite 26 questionnaire...
January 2018: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29150313/safety-practices-perceptions-and-behaviors-in-radiation-oncology-a-national-survey-of-radiation-therapists
#12
Kristina Demas Woodhouse, David Hashemi, Kathryn Betcher, Abigail Doucette, Allison Weaver, Brian Monzon, Seth A Rosenthal, Neha Vapiwala
PURPOSE: Radiation therapy is complex and demands high vigilance and precise coordination. Radiation therapists (RTTs) directly deliver radiation and are often the first to discover an error. Yet, few studies have examined the practices of RTTs regarding patient safety. We conducted a national survey to explore the perspectives of RTTs related to quality and safety. METHODS AND MATERIALS: In 2016, an electronic survey was sent to a random sample of 1500 RTTs in the United States...
January 2018: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28867548/treatment-of-bilateral-breast-cancer-and-regional-nodes-using-an-opposed-lateral-beam-arrangement
#13
Ahsan S Farooqi, Tzouh-Liang Sun, Sandy Thang, Simona F Shaitelman
No abstract text is available yet for this article.
November 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28673511/reirradiation-of-the-spine-with-stereotactic-radiosurgery-efficacy-and-toxicity
#14
David Boyce-Fappiano, Erinma Elibe, Bo Zhao, M Salim Siddiqui, Ian Lee, Jack Rock, Samuel Ryu, Farzan Siddiqui
PURPOSE: To determine the potential benefits and adverse effects associated with reirradiating the spinal cord when at least 1 course of radiation therapy (RT) is stereotactic radiosurgery (SRS). METHODS AND MATERIALS: This institutional review board-approved retrospective review included 162 patients (237 reirradiated spine lesions). All patients received SRS at our institution between 2001 and 2013. Electronic medical records were reviewed for clinical exams and radiologic tests (computed tomography/magnetic resonance imaging)...
November 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
#15
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/28666899/deep-inspiration-breathhold-for-left-sided-breast-cancer-patients-with-unfavorable-cardiac-anatomy-requiring-internal-mammary-nodal-irradiation
#16
Osama Mohamad, Jean Shiao, Bo Zhao, Karen Roach, Ezequiel Ramirez, Dat T Vo, Kimberly Thomas, Xuejun Gu, Ann Spangler, Kevin Albuquerque, Asal Rahimi
PURPOSE: The purpose of this study was to evaluate the utility of moderate deep inspiration breathhold (mDIBH) in reducing heart exposure in left breast cancer patients who have unfavorable cardiac anatomy and need internal mammary lymph node (IMLN) radiation therapy (RT). METHODS AND MATERIALS: We used maximum heart distance (MHD), defined as the maximum distance of the heart within the treatment field, >1 cm as a surrogate for unfavorable cardiac anatomy. Twenty-two left breast cancer patients with unfavorable cardiac anatomy requiring IMLN-RT underwent free-breathing (FB) and mDIBH computed tomography simulation and planning...
November 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28428017/outcomes-and-toxicity-following-high-dose-radiation-therapy-in-15-fractions-for-non-small-cell-lung-cancer
#17
Penny Fang, Cameron W Swanick, Todd A Pezzi, Zhongxing Liao, James Welsh, Steven H Lin, Daniel R Gomez
PURPOSE: Accelerated hypofractionated radiation therapy (AHRT) is increasingly used for select lung cancer patients. We evaluated clinical outcomes and predictors of pulmonary/esophageal toxicity in patients treated with ≥52.5 Gy in 15 fractions. METHODS AND MATERIALS: We evaluated 229 patients treated with radiation therapy doses ≥52.5 Gy in 15 fractions for non-small cell lung cancer from January 2009 through January 2016. Toxicity was scored using Common Terminology Criteria for Adverse Events, v4...
November 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29153901/use-of-5-alpha-reductase-inhibitors-as-alternatives-to-luteinizing-hormone-releasing-hormone-lhrh-analogs-or-anti-androgens-for-prostate-downsizing-before-brachytherapy
#18
Hee Joon Bae, Omar Mian, Dhananjay Vaidya, Theodore L DeWeese, Daniel Y Song
INTRODUCTION: Prostate hypertrophy, median lobe hypertrophy, and pubic arch interference (PAI) are relative contraindications to brachytherapy because of potential morbidity and technical considerations. GnRH analogs or non-steroidal anti-androgens are currently utilized to achieve prostatic downsizing prior to brachytherapy. However, such agents have been associated with effects on body habitus, metabolism, and quality of life. In contrast, 5-alpha reductase inhibitors (5-ARI) are far less frequently associated with these morbidities...
October 10, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29291966/results-of-a-prospective-phase-2-clinical-trial-of-induction-gemcitabine-capecitabine-followed-by-stereotactic-ablative-radiation-therapy-in-borderline-resectable-or-locally-advanced-pancreatic-adenocarcinoma
#19
Kimmen Quan, Philip Sutera, Karen Xu, Mark E Bernard, Steven A Burton, Rodney E Wegner, Herbert Zeh, Nathan Bahary, Ronald Stoller, Dwight E Heron
PURPOSE: Stereotactic ablative radiation therapy's (SABR's) great conformity and short duration has become an attractive treatment modality. We report a phase 2 clinical trial to evaluate efficacy and safety of induction chemotherapy (ICT) followed by SABR in patient with borderline resectable (BR) and locally advanced (LA) pancreatic ductal adenocarcinoma (PDAC). METHODS AND MATERIALS: Patients with biopsy-proven BR or LA PDAC were treated with four 21-day cycles of intravenous gemcitabine and oral capecitabine...
October 7, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29233523/stereotactic-body-radiation-therapy-for-stage-i-non-small-cell-lung-cancer-the-importance-of-treatment-planning-algorithm-and-evaluation-of-a-tumor-control-probability-model
#20
Nitin Ohri, Wolfgang Tomé, Shalom Kalnicki, Madhur Garg
BACKGROUND: Stereotactic body radiation therapy (SBRT) is increasingly used to treat early-stage non-small cell lung cancer (NSCLC). A previous report introduced the term size-adjusted biologically effective dose (sBED), which accounts for tumor diameter and biologically effective dose (BED) and may be used to predict the likelihood of local control following SBRT. Here we seek to replicate those findings using a separate dataset. METHODS AND MATERIALS: We queried the RSSearch Patient Registry for patients treated with SBRT for stage I NSCLC...
October 7, 2017: Practical Radiation Oncology
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