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Stereotactic body radiation therapy

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https://www.readbyqxmd.com/read/29327180/chemotherapy-with-or-without-definitive-radiation-therapy-in-inoperable-pancreatic-cancer
#1
Jim Zhong, Jeffrey Switchenko, Madhusmita Behera, David Kooby, Shishir K Maithel, Mark W McDonald, Jolinta Y Lin, Richard J Cassidy, Bassel El-Rayes, Jerome Landry, Pretesh R Patel
BACKGROUND: The LAP07 randomized trial calls into question the role of radiation therapy (RT) in the modern treatment of locally advanced pancreatic cancer (LAPC). However, advances in chemotherapy and RT limit application of the LAP07 results to current clinical practice. Here we utilize the National Cancer Database (NCDB) to evaluate the effects of RT in patients receiving chemotherapy for LAPC. METHODS: Using the NCDB, patients with American Joint Committee on Cancer (AJCC) clinical stage T2-4, N0-1, M0 adenocarcinoma of the pancreas from 2004 to 2014 were analyzed...
January 11, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29325801/editorial-the-role-of-medical-physics-in-lung-sbrt
#2
EDITORIAL
Pietro Mancosu, Andrew Nisbet, Núria Jornet
Stereotactic body radiation therapy (SBRT) has become a standard treatment for non-operable patients with early stage non-small cell lung cancer (NSCLC). In this context, medical physics community has largely helped in the starting and the growth of this technique. In fact, SBRT requires the convergence of many different features for delivering large doses in few fractions to small moving target in an heterogeneous medium. The special issue of last month, was focused on the different physics challenges in lung SBRT...
January 9, 2018: Physica Medica: PM
https://www.readbyqxmd.com/read/29324547/stereotactic-body-radiation-therapy-intensity-modulated-radiation-therapy-and-brachytherapy-boost-modalities-in-invasive-cervical-cancer-a-study-of-the-national-cancer-data-base
#3
Barrett OʼDonnell, Jay C Shiao, Todd A Pezzi, Nabila Waheed, Shelly Sharma, Mark D Bonnen, Michelle S Ludwig
BACKGROUND AND PURPOSE: Our objective was to determine whether stereotactic body radiotherapy (SBRT), intensity-modulated radiation therapy (IMRT), and brachytherapy boost techniques have comparable overall survival in treating cervical cancer when adjusted for known prognostic factors. MATERIALS AND METHODS: We used the National Cancer Database to study women with invasive cervical cancer who were treated with radiation between 2004 and 2013. A logistic regression model was built to identify factors associated with the receipt of SBRT and IMRT...
January 10, 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29324212/managing-patients-with-oligometastatic-non-small-cell-lung-cancer
#4
Sarah Jo Stephens, Michael J Moravan, Joseph K Salama
Metastatic lung cancer has long been considered incurable, with the goal of treatment being palliation. However, a clinically meaningful number of these patients with limited metastases (approximately 25%) are living long term after definitive treatment to all sites of active disease. These patients with so-called oligometastatic disease likely represent a distinct clinical group who may possess a more indolent biology compared with their more widely metastatic counterparts. Hellman and Weichselbaum proposed the existence of the oligometastatic state, on the basis of the spectrum theory of cancer spread...
January 2018: Journal of Oncology Practice
https://www.readbyqxmd.com/read/29312866/quantitative-texture-analysis-on-pre-treatment-computed-tomography-predicts-local-recurrence-in-stage-i-non-small-cell-lung-cancer-following-stereotactic-radiation-therapy
#5
Carole Dennie, Rebecca Thornhill, Carolina A Souza, Cecilia Odonkor, Jason R Pantarotto, Robert MacRae, Graham Cook
Background: The prediction of local recurrence (LR) of stage I non-small cell lung cancer (NSCLC) after definitive stereotactic body radiotherapy (SBRT) remains elusive. The purpose of this study was to assess whether quantitative imaging features on pre-treatment computed tomography (CT) can predict LR beyond 18 (18F) fluorodeoxyglucose (18F-FDG) positron emission tomography (PET)/CT maximum standard uptake value (SUVmax). Methods: This retrospective study evaluated 36 patients with 37 stage I NSCLC who had local tumor control (LC; n=19) and (LR; n=18)...
December 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29310420/the-role-of-stereotactic-body-radiation-therapy-in-oligometastatic-colorectal-cancer-clinical-case-report-of-a-long-responder-patient-treated-with-regorafenib-beyond-progression
#6
Michela Roberto, Rosa Falcone, Federica Mazzuca, Livia Archibugi, Nadia Castaldi, Andrea Botticelli, Mattia Falchetto Osti, Paolo Marchetti
RATIONALE: Regorafenib is the new standard third-line therapy in metastatic colorectal cancer (mCRC). However, the reported 1-year overall survival rate does not exceed 25%. PATIENT CONCERNS: A 55-year-old man affected by mCRC, treated with regorafenib combined with stereotactic body radiotherapy (SBRT), showing a durable response. INTERVENTIONS: After 6 months of regorafenib, a PET/CT scan revealed a focal uptake in a solid lung nodule which was treated with SBRT, whereas continuing regorafenib administration...
December 2017: Medicine (Baltimore)
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
#7
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/29301352/stereotactic-body-radiation-therapy-in-the-management-of-upper-gi-malignancies
#8
REVIEW
Leila Tchelebi, Nicholas Zaorsky, Heath Mackley
The role of external beam radiation therapy (EBRT) in the management of upper gastrointestinal malignancies is constantly evolving. As radiation therapy techniques improve and are able to deliver more ablative doses of radiotherapy while sparing healthy tissue, radiation can be applied to a wider range of clinical scenarios. Stereotactic body radiation therapy (SBRT) allows a high dose of radiation to be delivered to a highly conformal treatment volume in a short amount of time. Another potential advantage of SBRT is its ability to increase tumor immunogenicity, while also having less of an immunosuppressive effect on the patient, as compared to conventionally fractionated radiation therapy...
January 3, 2018: Biomedicines
https://www.readbyqxmd.com/read/29300208/review-of-optimal-techniques-for-robotic-assisted-radical-prostatectomy
#9
Khushabu Kasabwala, Neal A Patel, Jim C Hu
PURPOSE OF REVIEW: Robotic-assisted radical prostatectomy has been rapidly adopted and is now the standard of care in the surgical management of prostate cancer. Since the initial description in 2001, the technique has evolved to optimize oncological functional outcomes. Herein, we review key techniques for the robotic-assisted radical prostatectomy. RECENT FINDINGS: With the current influx of new technology such as focal therapy, stereotactic body radiation therapy and prostate-sparing treatments, there is greater emphasis on maximizing outcomes of robotic-assisted radical prostatectomy...
January 2, 2018: Current Opinion in Urology
https://www.readbyqxmd.com/read/29299403/radiological-differential-diagnosis-between-fibrosis-and-recurrence-after-stereotactic-body-radiation-therapy-sbrt-in-early-stage-non-small-cell-lung-cancer-nsclc
#10
Rezarta Frakulli, Fabrizio Salvi, Damiano Balestrini, Marcella Palombarini, Ilir Akshija, Silvia Cammelli, Alessio Giuseppe Morganti, Maurizio Zompatori, Giovanni Frezza
Background: Parenchymal changes after stereotactic body radiation therapy (SBRT) make differential diagnosis between treatment outcomes and disease recurrence often difficult. The purpose of our study was to identify the radiographic features detectable at computed tomography (CT) scan [high-risk features (HRFs)] that allow enough specificity and sensitivity for early detection of recurrence. Methods: We retrospectively evaluated patients who underwent SBRT for inoperable early stage non-small cell lung cancer (NSCLC)...
December 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/29299366/bridging-therapy-effectiveness-in-the-treatment-of-hepatocellular-carcinoma-prior-to-orthotopic-liver-transplantation
#11
Maria M Rubinstein, Andreas Kaubisch, Milan Kinkhabwala, John Reinus, Qiang Liu, Jennifer W Chuy
Background: Orthotopic liver transplantation (OLT) is the most effective treatment for hepatocellular carcinoma (HCC) in patients with underlying cirrhosis and portal hypertension. Availability of OLT is limited by donor-organ shortages, which increase patient waiting time until OLT. A variety of bridging therapies (BT) have been used to halt tumor progression in patients on the OLT waiting list. Despite complete radiologic responses following BT, viable tumor is often present in explants...
December 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/29296036/a-unified-dose-response-relationship-to-predict-high-dose-fractionation-response-in-the-lung-cancer-stereotactic-body-radiation-therapy
#12
Than S Kehwar, Kashmiri L Chopra, Durg V Rai
Aim: This study is designed to investigate the superiority and applicability of the model among the linear-quadratic (LQ), linear-quadratic-linear (LQ-L) and universal-survival-curve (USC) models by fitting published radiation cell survival data of lung cancer cell lines. Materials and Method: The radiation cell survival data for small cell (SC) and non-small cell (NSC) lung cancer cell lines were obtained from published reports, and were used to determine the LQ and cell survival curve parameters, which ultimately were used in the curve fitting of the LQ, LQ-L and USC models...
October 2017: Journal of Medical Physics
https://www.readbyqxmd.com/read/29290248/stereotactic-body-radiation-therapy-for-isolated-hilar-and-mediastinal-non-small-cell-lung-cancers
#13
Zachary D Horne, Adam H Richman, Michael J Dohopolski, David A Clump, Steven A Burton, Dwight E Heron
OBJECTIVES: The seminal phase II trial for pulmonary stereotactic body radiation therapy (SBRT) suggested that SBRT to central lesions resulted in unacceptable toxicity. Alternative dose-fractionation schemes have been proposed which may improve safety without compromise of efficacy. We report our institutional outcomes of SBRT for hilar/mediastinal non-small cell lung cancer (NSCLC). MATERIALS AND METHODS: A retrospective review was conducted of patients with NSCLC in a hilar or mediastinal nodal station which was treated with SBRT...
January 2018: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/29285374/stereotactic-body-radiotherapy-for-oligo-recurrence-in-the-liver-in-a-patient-with-esophageal-carcinoma-a-case-report
#14
Atsuto Katano, Hideomi Yamashita, Keiichi Nakagawa
Stereotactic body radiation therapy (SBRT) is a safe and effective treatment for solitary cancerous lesions. The present study reported a rare case of sustained remission after SBRT for oligorecurrence in the liver in a patient with esophageal carcinoma. A 60-year-old Japanese man presented with a chief complaint of dysphagia. On medical examination, the patient was diagnosed as having squamous cell carcinoma of the esophagus that was clinically staged as T4bN1M0. The patient received definitive concurrent chemoradiotherapy, consisting of four 28-day cycles of chemotherapy comprising nedaplatin 80 mg/m2 on day 1 and S-1 120 mg/body orally on days 1-14, with radiotherapy comprising a total of 50 Gy in daily fractions of 2 Gy...
December 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29282443/first-ever-use-of-proton-stereotactic-body-radiation-therapy-delivered-with-curative-intent-to-bilateral-synchronous-primary-renal-cell-carcinomas
#15
Melissa A Frick, Arpit M Chhabra, Liyong Lin, Charles B Simone Ii
Limited therapeutic options exist for inoperable bilateral kidney tumors. We report the first ever use of proton therapy to treat primary renal cell carcinoma (RCC) and the first report of proton stereotactic body radiation therapy (SBRT) for RCC in an inoperable patient with synchronous RCCs treated with proton SBRT. The patient is a 47-year-old 450-pound female with multiple medical comorbidities, including Stage 3 chronic kidney disease (CKD), who was found to have bilateral renal masses during work-up for cellulitis and sepsis...
October 24, 2017: Curēus
https://www.readbyqxmd.com/read/29280459/update-of-a-prospective-study-of-stereotactic-body-radiation-therapy-for-post-chemoradiation-residual-disease-in-stage-ii-iii-non-small-cell-lung-cancer
#16
Sameera Kumar, Jonathan Feddock, Xingzhe Li, Andrew J Shearer, Logan Hall, Brent J Shelton, Susanne Arnold, Ronald C McGarry
PURPOSE: To report long-term outcomes (risk of late toxicities, local control, and survival) of dose escalation by stereotactic radiation therapy boost to residual fluorodeoxyglucose positron emission tomography-positive residual disease after chemoradiation (CRT) in stage III non-small cell lung cancer (NSCLC). METHODS AND MATERIALS: Patients with stage IIB/III NSCLC underwent computed tomography or positron emission tomography-computed tomography screening approximately 1 month after completion of CRT...
November 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29280445/the-influence-of-health-insurance-policy-on-radiation-oncology-physician-sbrt-sabr-use-practices-a-north-american-survey
#17
Jenny Guo, Hyun Kim, Ingrid Kalchman, Tu D Dan, Tingting Zhan, Maria Werner-Wasik
PURPOSE: European data suggest that 8-fraction stereotactic body radiation therapy (SBRT) regimens may be similar in efficacy with less toxicity than ≤5-fraction SBRT for central lung lesions. However, under current Centers for Medicare and Medicaid Services guidelines, SBRT in the United States (US) is reimbursed for only ≤5 fractions, whereas there are no such restrictions for reimbursement in Canada. We hypothesize that US-specific SBRT reimbursement policies influence the use of ≥5-fraction SBRT in US academic centers in comparison with comparable Canadian centers...
November 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29279949/re-irradiation-with-curative-intent-in-patients-with-squamous-cell-carcinoma-of-the-head-and-neck-a-national-survey-of-usual-practice-on-behalf-of-the-italian-association-of-radiation-oncology-airo
#18
Marta Maddalo, Pierluigi Bonomo, Liliana Belgioia, Almalina Bacigalupo, Vittorio Donato, Daniela Alterio, Ester Orlandi, Angela Argenone, Anna Merlotti, Daniela Musio, Marianna Trignani, Stefano Ursino, Stefano Arcangeli, Carlo Furlan, Mattia Falchetto Osti
OBJECTIVE: To report the results of a national survey investigating the pattern of practice of curative re-irradiation (ReRT) for recurrent squamous cell carcinoma of the head and neck. METHODS: In March 2016, a 22-item, 4-section questionnaire was sent to all Italian Radiation Oncology centers. Sections were focused on assessing the expertise level of each center and collecting specific information on reRT prescription modalities in the adjuvant and definitive settings...
December 26, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29277249/fine-tuning-the-normal-tissue-objective-in-eclipse-for-lung-stereotactic-body-radiation-therapy
#19
James P Bell, Pretesh Patel, Kristin Higgins, Mark W McDonald, Justin Roper
The purpose of this study was to characterize the effects of the normal tissue objective (NTO) on lung stereotactic body radiation therapy (SBRT) dose distributions. The NTO is a spatially varying constraint used in Eclipse to limit dose to normal tissues by steepening the dose gradient. However, the multitude of potential NTO setting combinations challenges optimal NTO tuning. In the present study, a broad range of NTO settings are investigated for lung SBRT treatment planning with volumetric modulated arc therapy(VMAT)...
December 22, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/29251647/pretreatment-18f-fluorodeoxyglucose-positron-emission-tomography-standardized-uptake-values-and-tumor-size-in-medically-inoperable-nonsmall-cell-lung-cancer-is-prognostic-of-overall-2-year-survival-after-stereotactic-body-radiation-therapy
#20
Madison R Kocher, Anand Sharma, Elizabeth Garrett-Mayer, James G Ravenel
OBJECTIVE: The aim of this study was to determine prognostic value of tumor size and metabolic activity on survival for patients with early stage nonsmall cell lung cancer receiving stereotactic body radiation therapy. METHODS: We retrospectively evaluated the patients who underwent positron emission tomography-computed tomography scan before stereotactic body radiation therapy treatment. Tumor diameter, tumor volume, maximum standardized uptake value (SUVmax), standardized uptake value (SUV) average, and SUV volume were obtained...
December 14, 2017: Journal of Computer Assisted Tomography
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