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Practical Radiation Oncology

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https://www.readbyqxmd.com/read/28341320/gallbladder-toxicity-and-high-dose-ablative-intent-radiation-for-liver-tumors-should-we-constrain-the-dose
#1
Shyam K Tanguturi, Andrzej Niemierko, Jennifer Y Wo, Khanhnhat N Nguyen, Hugh Prichard, Andrew X Zhu, John A Wolfgang, Theodore S Hong
PURPOSE: Little is known about the risk of gallbladder toxicity from hypofractionated (HFXRT) and stereotactic body radiation therapy (SBRT). We report on gallbladder toxicity and attribution to treatment in a prospective series of patients with primary and metastatic liver tumors receiving ablative-intent HFXRT and SBRT with protons. METHODS AND MATERIALS: We evaluated 93 patients with intact gallbladders enrolled in either of 2 trials investigating proton HFXRT and SBRT for primary and metastatic liver tumors from 2009 to 2014...
February 9, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28341319/improving-patient-safety-and-workflow-efficiency-with-standardized-pretreatment-radiation-therapist-chart-reviews
#2
Kelly Cooper Younge, Katherine Woch Naheedy, Joel Wilkinson, Joumana Dekmak, Elizabeth Covington, Bonnie Durbin, Eric Nelson, Stephanie Filpansick, Jean M Moran
PURPOSE: Radiation therapists play a critical role in ensuring patient safety; however, they are sometimes given insufficient time to perform quality assurance (QA) of a patient's treatment chart and documentation before the start of treatment. In this work, we show the benefits of introducing a formal therapist prestart QA checklist, completed in a quiet space well in advance of treatment, into our workflow. METHODS AND MATERIALS: A therapist prestart QA checklist was created by analyzing in-house variance reports and treatment unit delays over 6 months...
February 2, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28341317/target-volume-and-artifact-evaluation-of-a-new-data-driven-4d-ct
#3
Rachael Martin, Tinsu Pan
PURPOSE: Four-dimensional computed tomography (4D CT) is often used to define the internal gross target volume (IGTV) for radiation therapy of lung cancer. Traditionally, this technique requires the use of an external motion surrogate; however, a new image, data-driven 4D CT, has become available. This study aims to describe this data-driven 4D CT and compare target contours created with it to those created using standard 4D CT. METHODS AND MATERIALS: Cine CT data of 35 patients undergoing stereotactic body radiation therapy were collected and sorted into phases using standard and data-driven 4D CT...
February 2, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28341318/online-palliative-care-and-oncology-patient-education-resources-through-google-do-they-meet-national-health-literacy-recommendations
#4
Arpan V Prabhu, Tudor Crihalmeanu, David R Hansberry, Nitin Agarwal, Christine Glaser, David A Clump, Dwight E Heron, Sushil Beriwal
PURPOSE: The Google search engine is a resource commonly used by patients to access health-related patient education information. The American Medical Association and National Institutes of Health recommend that patient education resources be written at a level between the third and seventh grade reading levels. We assessed the readability levels of online palliative care patient education resources using 10 readability algorithms widely accepted in the medical literature. METHODS AND MATERIALS: In October 2016, searches were conducted for 10 individual terms pertaining to palliative care and oncology using the Google search engine; the first 10 articles written for the public for each term were downloaded for a total of 100 articles...
January 27, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28341316/what-are-appropriate-physics-manuscripts-for-submission-to-the-practical-radiation-oncology-journal
#5
EDITORIAL
Todd Pawlicki, James Chow, Sonja Dieterich, Geoffrey Hugo
No abstract text is available yet for this article.
January 20, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28336481/irinotecan-induced-radiation-recall-myositis-in-a-patient-with-metastatic-breast-cancer-a-case-report
#6
Nitin Prabhakar, Uma Goyal, Victor J Gonzalez
No abstract text is available yet for this article.
January 20, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28222995/acute-and-late-toxicity-in-high-risk-prostate-cancer-patients-treated-with-androgen-suppression-and-hypofractionated-pelvic-radiation-therapy
#7
Sergio Faria, Russel Ruo, Fabio Cury, Marie Duclos, Luis Souhami
PURPOSE: To report acute and late toxicity rates in patients with high-risk prostate cancer treated with androgen deprivation therapy (ADT) and moderate hypofractionated radiation therapy (HypoRT) to the prostate and nodal areas. METHODS AND MATERIALS: Patients with localized, high-risk prostate cancer were treated with a HypoRT regimen of 60 Gy in 20 fractions (4 weeks) to the prostate volume while the nodal areas received 44 Gy in the same 20 fractions delivered with intensity modulated RT with a simultaneous integrated boost technique...
January 20, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28284760/a-peer-review-process-as-part-of-the-implementation-of-clinical-pathways-in-radiation-oncology-does-it-improve-compliance
#8
Brian J Gebhardt, Dwight E Heron, Sushil Beriwal
PURPOSE: Clinical pathways are patient management plans that standardize evidence-based practices to ensure high-quality and cost-effective medical care. Implementation of a pathway is a collaborative process in our network, requiring the active involvement of physicians. This approach promotes acceptance of pathway recommendations, although a peer review process is necessary to ensure compliance and to capture and approve off-pathway selections. We investigated the peer review process and factors associated with time to completion of peer review...
January 19, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28242188/initial-clinical-outcomes-of-audiovisual-assisted-therapeutic-ambience-in-radiation-therapy-avatar
#9
Susan M Hiniker, Karl Bush, Tyler Fowler, Evan C White, Samuel Rodriguez, Peter G Maxim, Sarah S Donaldson, Billy W Loo
PURPOSE: Radiation therapy is an important component of treatment for many childhood cancers. Depending upon the age and maturity of the child, pediatric radiation therapy often requires general anesthesia for immobilization, position reproducibility, and daily treatment delivery. We designed and clinically implemented a radiation therapy-compatible audiovisual system that allows children to watch streaming video during treatment, with the goal of reducing the need for daily anesthesia through immersion in video...
January 19, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28222996/stereotactic-radiation-therapy-for-residual-chemorefractory-primary-mediastinal-non-seminomatous-germ-cell-tumor-after-surgical-thoracotomy
#10
Philippe Laflamme, Cédric Doucet, Christian Sirois, Neil Kopek, Marie Vanhuyse
No abstract text is available yet for this article.
January 7, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28214145/effect-of-reduction-mammoplasty-on-acute-radiation-side-effects-and-use-of-lumpectomy-cavity-boosts
#11
Jolinta Y Lin, Rachel Bluebond-Langner, Enid Choi, Sally Cheston, Elizabeth M Nichols, Randi J Cohen, Soren M Bentzen, Cynthia Drogula, Susan Kesmodel, Emily Bellavance, Paula Rosenblatt, Katherine Tkaczuk, Sheri Slezak, Steven J Feigenberg
PURPOSE: Reduction mammoplasty (RM) during breast-conserving surgery is popular among women with large-volume breasts because it reduces redundant breast folds and may decrease skin-related morbidity from radiation therapy. However, RM may obscure the lumpectomy cavity (LC) and pose challenges to administering an LC boost, potentially affecting local control. We investigated the impact of RM on acute side effects and use of LC boosts. METHODS AND MATERIALS: The records of 645 consecutive women treated with whole-breast irradiation at an urban university and 2 community practices between January 2012 and December 2014 were reviewed on an institutional review board-approved study...
January 7, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28254368/the-impact-of-tumor-biology-on-survival-and-response-to-radiation-therapy-among-patients-with-non-small-cell-lung-cancer-brain-metastases
#12
Jacob A Miller, Rupesh Kotecha, Manmeet S Ahluwalia, Alireza M Mohammadi, John H Suh, Gene H Barnett, Erin S Murphy, Michael A Vogelbaum, Lilyana Angelov, Samuel T Chao
PURPOSE: To investigate the natural history and response to radiation therapy among ALK-rearranged, EGFR-mutated, wild-type adenocarcinoma, and squamous cell non-small cell lung cancer (NSCLC) brain metastases. METHODS AND MATERIALS: Patients with NSCLC brain metastasis diagnosed from 1989 through 2014 at a single tertiary-care institution were included. The primary outcome was overall survival, whereas secondary outcomes included local failure, distant intracranial failure, and radiation necrosis...
January 5, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28274407/comparison-of-2-transabdominal-ultrasound-image-guidance-techniques-for-prostate-and-prostatic-fossa-radiation-therapy
#13
Bill J Salter, Martin Szegedi, Christine Boehm, Vikren Sarkar, Prema Rassiah-Szegedi, Brian Wang, Hui Zhao, Jessica Huang, Long Huang, Kris Kokeny, Jonathan D Tward
PURPOSE: Our clinic is a long-term user of a first-generation transabdominal (TA) biplanar (2.5-dimensional [2.5D]) ultrasound image guidance (USIG) system for prostate cancer treatments. We are also an early adopter and development partner for a new, second-generation, fully 3D USIG system that allows for volumetric TA localization of the prostate. This new system has been evaluated at our institution by direct comparison with the previously established first-generation TA method for prostate alignment...
March 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28274406/assessing-long-term-complications-in-patients-undergoing-immediate-postmastectomy-breast-reconstruction-and-adjuvant-radiation
#14
Ryan Sacotte, Niel Fine, John Y Kim, Mohammed Alghoul, Kevin Bethke, Nora Hansen, Seema A Khan, Swati Kulkarni, Jonathan Strauss, John P Hayes, Eric D Donnelly
PURPOSE: The purpose of this article is to report the long-term rate and timing of complications associated with postmastectomy radiation therapy (PMRT) following immediate breast reconstruction in a large patient population. METHODS AND MATERIALS: We identified and reviewed the charts of all patients with stages I through IIIC breast cancer who underwent mastectomy with immediate reconstruction followed by subsequent radiation therapy between November 1997 and May 2010...
March 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28274405/state-of-dose-prescription-and-compliance-to-international-standard-icru-83-in-intensity-modulated-radiation-therapy-among-academic-institutions
#15
Indra J Das, Aaron Andersen, Zhe Jay Chen, Andrea Dimofte, Eli Glatstein, Jeremy Hoisak, Long Huang, Mark P Langer, Choonik Lee, Matthew Pacella, Richard A Popple, Roger Rice, Jennifer Smilowitz, Patricia Sponseller, Timothy Zhu
PURPOSE: The purpose of this study was to evaluate dose prescription and recording compliance to international standard (International Commission on Radiation Units & Measurements [ICRU]-83) in patients treated with intensity modulated radiation therapy (IMRT) among academic institutions. METHODS AND MATERIALS: Ten institutions participated in this study to collect IMRT data to evaluate compliance to ICRU-83. Under institutional review board clearance, data from 5094 patients-including treatment site, technique, planner, physician, prescribed dose, target volume, monitor units, planning system, and dose calculation algorithm-were collected anonymously...
March 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28274404/in-vivo-dosimetry-with-optically-stimulated-luminescent-dosimeters-for-conformal-and-intensity-modulated-radiation-therapy-a-2-year-multicenter-cohort-study
#16
Adam C Riegel, Yu Chen, Ajay Kapur, Laura Apicello, Abraham Kuruvilla, Anthony J Rea, Abolghassem Jamshidi, Louis Potters
PURPOSE: Optically stimulated luminescent dosimeters (OSLDs) are utilized for in vivo dosimetry (IVD) of modern radiation therapy techniques such as intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT). Dosimetric precision achieved with conventional techniques may not be attainable. In this work, we measured accuracy and precision for a large sample of clinical OSLD-based IVD measurements. METHODS AND MATERIALS: Weekly IVD measurements were collected from 4 linear accelerators for 2 years and were expressed as percent differences from planned doses...
March 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28274403/long-term-results-of-adjuvant-versus-early-salvage-postprostatectomy-radiation-a-large-single-institutional-experience
#17
Daniela L Buscariollo, Michael Drumm, Andrzej Niemierko, Rebecca H Clayman, Sigolene Galland-Girodet, Danielle Rodin, Adam S Feldman, Douglas M Dahl, Francis J McGovern, Aria F Olumi, Alec Eidelman, William U Shipley, Anthony L Zietman, Jason A Efstathiou
PURPOSE: The purpose of this study was to evaluate freedom from biochemical failure (FFBF), freedom from androgen deprivation therapy (FFADT), freedom from distant metastases (FFDM), and overall survival (OS) after adjuvant radiation therapy (ART) versus early salvage radiation therapy (ESRT) in men with prostate cancer and adverse pathologic features (pT3 and/or positive surgical margins). METHODS AND MATERIALS: Of 718 patients consecutively treated with postoperative radiation therapy (RT) for prostate cancer between 1992 and 2013, we retrospectively identified 171 men receiving ART and 230 receiving ESRT (RT delivered at a prostate-specific antigen level ≤0...
March 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28274402/patient-reported-quality-of-life-during-definitive-and-postprostatectomy-image-guided-radiation-therapy-for-prostate-cancer
#18
Kevin Diao, Emily A Lobos, Eda Yirmibesoglu, Ram Basak, Laura H Hendrix, Brittney Barbosa, Seth M Miller, Kevin A Pearlstein, Gregg H Goldin, Andrew Z Wang, Ronald C Chen
PURPOSE: The importance of patient-reported outcomes is well-recognized. Long-term patient-reported symptoms have been described for individuals who completed radiation therapy (RT) for prostate cancer. However, the trajectory of symptom development during the course of treatment has not been well-described in patients receiving modern, image-guided RT. METHODS AND MATERIALS: Quality-of-life data were prospectively collected for 111 prostate cancer patients undergoing RT using the validated Prostate Cancer Symptom Indices, which assessed 5 urinary obstructive/irritative and 6 bowel symptoms...
March 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28274401/receiver-operating-curves-and-dose-volume-analysis-of-late-toxicity-with-stereotactic-body-radiation-therapy-for-prostate-cancer
#19
Li Zhang, Julian Johnson, Alexander R Gottschalk, Albert J Chang, I-Chow Hsu, Mack Roach, Zachary A Seymour
PURPOSE: The purpose of this study was to evaluate a receiver operating characteristic (ROC) curve method to determine dose thresholds with late genitourinary (GU) toxicity after stereotactic body radiation therapy for prostate cancer. METHODS AND MATERIALS: Seventy-eight patients diagnosed with low- to intermediate-risk prostate cancer and treated with stereotactic body radiation therapy alone were reviewed retrospectively. All patients received a total dose of 38 Gy in 4 fractions with a planning target volume expansion of 2 mm...
March 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28274400/adjuvant-radiation-in-the-tors-era-is-there-a-benefit-to-omitting-the-tumor-bed
#20
Stanislav Lazarev, Blagoja Todorov, James Tam, Vishal Gupta, Brett A Miles, Nancy Lee, Richard L Bakst
PURPOSE: Trans-oral robotic surgery (TORS) followed by adjuvant radiation therapy (RT) is becoming popular in treating node-positive tonsillar squamous cell carcinoma (SCC). One potential benefit is eliminating irradiation of the primary site when the tumor is widely resected, and targeting the neck only. This study assessed whether omitting the tumor bed provides any dosimetric or clinical advantage. METHODS AND MATERIALS: We identified 21 patients with primary tonsillar SCC that were treated with TORS followed by RT to the ipsilateral neck and primary (N+P) site...
March 2017: Practical Radiation Oncology
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