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https://www.readbyqxmd.com/read/28626632/synchronous-mucinous-and-non-mucinous-lung-adenocarcinomas-with-different-epidermal-growth-mutational-status
#1
Rita Linhas, David Tente, Margarida Dias, Ana Barroso
In recent years, the spread of more-sensitive diagnostic methods has resulted in an increase of synchronous multiple primary lung cancer diagnosis. Nevertheless, its occurrence is still rare. Distinction between synchronous lesions from second independent primary tumors is a problem when dealing with multiple lung tumors, particularly if the histological type is the same. We present a case report of a 78-year-old female patient referred to our institution due to pneumonia. A subsequent thoracic computed tomography (CT) was performed showing two suspicious lesions, one in the right upper lobe and the other in the right inferior lobe...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28624021/assessment-of-treatment-response-after-lung-stereotactic-body-radiotherapy-using-diffusion-weighted-magnetic-resonance-imaging-and-positron-emission-tomography-a-pilot-study
#2
Takashi Shintani, Yukinori Matsuo, Yusuke Iizuka, Takamasa Mitsuyoshi, Shigeaki Umeoka, Yuji Nakamoto, Takashi Mizowaki, Kaori Togashi, Masahiro Hiraoka
BACKGROUND AND PURPOSE: There is no early predictor of treatment response after lung stereotactic body radiotherapy (SBRT). We conducted this pilot study to evaluate whether serial diffusion weighted magnetic resonance imaging (DW-MRI) or positron emission tomography (PET) could predict response after SBRT. MATERIAL AND METHODS: Early stage non-small cell lung cancer patients who received SBRT were eligible. DW-MRI and PET were undertaken pretreatment and every 3 months after SBRT in the first year...
July 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28620905/stereotactic-body-radiation-therapy-as-an-alternative-to-surgery-in-early-stage-non-small-cell-lung-cancer
#3
REVIEW
Kenneth Rosenzweig
Stereotactic body radiation therapy (SBRT) is a novel radiation technique that allows a high dose of radiation to be delivered to a tumor with relatively low dose to the surrounding normal tissue. SBRT has achieved extraordinary clinical success in patients with inoperable early-stage non-small-cell lung cancer (NSCLC). Local control of approximately 90% at 2 to 5 years has been demonstrated in multiple trials. In comparisons with surgical resection (in patients who are fit candidates for surgery), SBRT has provided similar local control, but was associated with worse survival, probably due to differences in the underlying patient populations...
June 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/28612018/treatment-options-in-oligometastatic-disease-stereotactic-body-radiation-therapy-focus-on-colorectal-cancer
#4
REVIEW
Aaron T Wild, Yoshiya Yamada
BACKGROUND: Improvements in systemic therapy for metastatic colorectal cancer (CRC) have markedly extended survival, rendering local control of metastases to critical organs of increasing importance, especially in the oligometastatic setting where the disease may not yet have acquired the ability to widely disseminate. While surgical resection remains the gold standard for oligometastases in many organs, stereotactic body radiation therapy (SBRT) presents a non-invasive alternative for achieving local control...
March 2017: Visceral Medicine
https://www.readbyqxmd.com/read/28608966/next-generation-sequencing-and-clinical-outcomes-of-patients-with-lung-adenocarcinoma-treated-with-stereotactic-body-radiotherapy
#5
Richard J Cassidy, Xinyan Zhang, Pretesh R Patel, Joseph W Shelton, Chase E Escott, Gabriel L Sica, Michael R Rossi, Charles E Hill, Conor E Steuer, Rathi N Pillai, Suresh S Ramalingam, Taofeek K Owonikoko, Madhusmita Behera, Seth D Force, Felix G Fernandez, Walter J Curran, Kristin A Higgins
BACKGROUND: Genetic aberrations are well characterized in lung adenocarcinomas (LACs) and clinical outcomes have been influenced by targeted therapies in the advanced setting. Stereotactic body radiotherapy (SBRT) is the standard-of-care therapy for patients with nonoperable, early-stage LAC, but to the authors' knowledge, no information is available regarding the impact of genomic changes in these patients. The current study sought to determine the frequency and clinical impact of genetic aberrations in this population...
June 13, 2017: Cancer
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
#6
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...
June 5, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28577952/stereotactic-body-radiotherapy-for-operable-early-stage-non-small-cell-lung-cancer
#7
Takahisa Eriguchi, Atsuya Takeda, Naoko Sanuki, Yuichiro Tsurugai, Yousuke Aoki, Yohei Oku, Yu Hara, Takeshi Akiba, Naoyuki Shigematsu
PURPOSE: To analyze outcomes of stereotactic body radiotherapy (SBRT) for operable patients with early-stage non-small cell lung cancer (NSCLC) and to evaluate factors associated with outcomes. METHODS: We retrospectively analyzed operable patients with NSCLC, staged as cT1-2N0M0, treated with SBRT between 2006 and 2015. Both biopsy-proven and clinically diagnosed NSCLC were included. Local control and survival rates were calculated and compared between subsets of patients...
July 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28577947/indications-for-invasive-mediastinal-staging-in-patients-with-early-non-small-cell-lung-cancer-staged-with-pet-ct
#8
Sarah J Gao, Anthony W Kim, Jonathan T Puchalski, Kyle Bramley, Frank C Detterbeck, Daniel J Boffa, Roy H Decker
PURPOSE/OBJECTIVE(S): Appropriate use of invasive mediastinal staging in patients with clinically node-negative NSCLC staged by PET-CT is critical in selecting patients for curative-intent therapy such as surgery or SBRT, but little data exists to guide this decision-making. We examined a large population of patients with clinical stage I NSCLC referred for mediastinoscopy or EBUS to find risk factors for occult N2 lymph nodes and determine which patients benefit from invasive staging...
July 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28576581/in-vivo-dosimetry-for-lung-radiotherapy-including-sbrt
#9
REVIEW
Boyd M C McCurdy, Peter M McCowan
SBRT for lung cancer is being rapidly adopted as a treatment option in modern radiotherapy centres. This treatment is one of the most complex in common clinical use, requiring significant expertise and resources. It delivers a high dose per fraction (typically ∼6-30Gy/fraction) over few fractions. The complexity and high dose delivered in only a few fractions make powerful arguments for the application of in vivo dosimetry methods for these treatments to enhance patient safety. In vivo dosimetry is a group of techniques with a common objective - to estimate the dose delivered to the patient through a direct measurement of the treatment beam(s)...
May 30, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28567503/planning-benchmark-study-for-sbrt-of-early-stage-nsclc-results-of-the-degro-working-group-stereotactic-radiotherapy
#10
Christos Moustakis, Oliver Blanck, Fatemeh Ebrahimi Tazehmahalleh, Mark Ka Heng Chan, Iris Ernst, Thomas Krieger, Marciana-Nona Duma, Markus Oechsner, Ute Ganswindt, Christian Heinz, Horst Alheit, Hilbert Blank, Ursula Nestle, Rolf Wiehle, Christine Kornhuber, Christian Ostheimer, Cordula Petersen, Gerhard Pollul, Wolfgang Baus, Georg Altenstein, Eric Beckers, Katrin Jurianz, Florian Sterzing, Matthias Kretschmer, Heinrich Seegenschmiedt, Torsten Maass, Stefan Droege, Ulrich Wolf, Juergen Schoeffler, Uwe Haverkamp, Hans Theodor Eich, Matthias Guckenberger
PURPOSE: The aim was to evaluate stereotactic body radiation therapy (SBRT) treatment planning variability for early stage nonsmall cell lung cancer (NSCLC) with respect to the published guidelines of the Stereotactic Radiotherapy Working Group of the German Society for Radiation Oncology (DEGRO). MATERIALS AND METHODS: Planning computed tomography (CT) scan and the structure sets (planning target volume, PTV; organs at risk, OARs) of 3 patients with early stage NSCLC were sent to 22 radiotherapy departments with SBRT experience: each department was asked to prepare a treatment plan according to the DEGRO guidelines...
May 31, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28566240/frontiers-in-planning-optimization-for-lung-sbrt
#11
Francesca Romana Giglioli, Stefania Clemente, Marco Esposito, Christian Fiandra, Carmelo Marino, Serenella Russo, Lidia Strigari, Elena Villaggi, Michele Stasi, Pietro Mancosu
Emerging data are showing the safety and the efficacy of Stereotactic Body Radiation therapy (SBRT) in lung cancer management. In this context, the very high doses delivered to the Planning Target Volume, make the planning phase essential for achieving high dose levels conformed to the shape of the target in order to have a good prognosis for tumor control and to avoid an overdose in relevant healthy adjacent tissue. In this non-systematic review we analyzed the technological and the physics aspects of SBRT planning for lung cancer...
May 26, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28545956/comparison-of-particle-beam-therapy-and-stereotactic-body-radiotherapy-for-early-stage-non-small-cell-lung-cancer-a-systematic-review-and-hypothesis-generating-meta-analysis
#12
REVIEW
Alexander Chi, Haiquan Chen, Sijin Wen, Haijuan Yan, Zhongxing Liao
PURPOSE: To assess hypo-fractionated particle beam therapy (PBT)'s efficacy relative to that of photon stereotactic body radiotherapy (SBRT) for early stage (ES) non-small cell lung cancer (NSCLC). METHODS: Eligible studies were identified through extensive searches of the PubMed, Medline, Google-scholar, and Cochrane library databases from 2000 to 2016. Original English publications of ES NSCLC were included. A meta-analysis was performed to compare the survival outcome, toxicity profile, and patterns of failure following each treatment...
May 22, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28530067/-stereotactic-ablative-body-radiation-sabr-a-new-therapeutic-option-for-treatment-of-stage-i-lung-cancer
#13
REVIEW
Sarit Appel, Zvi Symon
Stereotactic ablative radiotherapy (SABR) also known as stereotactic body radiation therapy (SBRT) offers a new therapeutic option for stage 1 lung cancer that cannot undergo surgery due to co-morbidities or patient refusal. This treatment evolved in the last decade thanks to technologic advancement of radiation therapy planning and delivery that allow real time imaging of the tumor and real time position correction before every treatment. Ultra high doses of radiation cause ablation of the target with very low collateral scatter dose to surrounding tissue...
November 2016: Harefuah
https://www.readbyqxmd.com/read/28529896/advances-in-radiotherapy-techniques-and-delivery-for-non-small-cell-lung-cancer-benefits-of-intensity-modulated-radiation-therapy-proton-therapy-and-stereotactic-body-radiation-therapy
#14
REVIEW
Tejan P Diwanji, Pranshu Mohindra, Melissa Vyfhuis, James W Snider, Chaitanya Kalavagunta, Sina Mossahebi, Jen Yu, Steven Feigenberg, Shahed N Badiyan
The 21st century has seen several paradigm shifts in the treatment of non-small cell lung cancer (NSCLC) in early-stage inoperable disease, definitive locally advanced disease, and the postoperative setting. A key driver in improvement of local disease control has been the significant evolution of radiation therapy techniques in the last three decades, allowing for delivery of definitive radiation doses while limiting exposure of normal tissues. For patients with locally-advanced NSCLC, the advent of volumetric imaging techniques has allowed a shift from 2-dimensional approaches to 3-dimensional conformal radiation therapy (3DCRT)...
April 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/28523157/impact-of-maximum-standardized-uptake-value-of-non-small-cell-lung-cancer-on-detecting-lymph-node-involvement-in-potential-stereotactic-body-radiotherapy-candidates
#15
Shanyuan Zhang, Shaolei Li, Yuquan Pei, Miao Huang, Fangliang Lu, Qingfeng Zheng, Nan Li, Yue Yang
BACKGROUND: The retrospective study investigated the association between the maximum standardized uptake value (SUVmax) of primary tumor and lymph node involvement in potential stereotactic body radiotherapy (SBRT) candidates. METHODS: A total of 185 patients with clinical stage I NSCLC were enrolled in the current study. All patients underwent lobectomy with systematic lymph node dissection following preoperative FDG-PET/CT scanning. The association between clinicopathological variables and lymph node involvement was analyzed by univariate and multivariate analysis...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28503898/evaluation-of-initial-setup-errors-of-two-immobilization-devices-for-lung-stereotactic-body-radiation-therapy-sbrt
#16
Yoshihiro Ueda, Teruki Teshima, Higinia Cárdenes, Indra J Das
The aim of this study was to investigate the accuracy and efficacy of two commonly used commercial immobilization systems for stereotactic body radiation therapy (SBRT) in lung cancer. This retrospective study assessed the efficacy and setup accuracy of two immobilization systems: the Elekta Body Frame (EBF) and the Civco Body Pro-Lok (CBP) in 80 patients evenly divided for each system. A cone beam CT (CBCT) was used before each treatment fraction for setup correction in both devices. Analyzed shifts were applied for setup correction and CBCT was repeated...
May 14, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28480871/multi-objective-radiomics-model-for-predicting-distant-failure-in-lung-sbrt
#17
Zhiguo Zhou, Michael Folkert, Puneeth Iyengar, Kenneth Westover, Yuanyuan Zhang, Hak Choy, Robert Timmerman, Steve Jiang, Jing Wang
Stereotactic body radiation therapy (SBRT) has demonstrated high local control rates in early stage non-small cell lung cancer patients who are not ideal surgical candidates. However, distant failure after SBRT is still common. For patients at high risk of early distant failure after SBRT treatment, additional systemic therapy may reduce the risk of distant relapse and improve overall survival. Therefore, a strategy that can correctly stratify patients at high risk of failure is needed. The field of radiomics holds great potential in predicting treatment outcomes by using high-throughput extraction of quantitative imaging features...
June 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28480719/stereotactic-body-radiation-therapy-for-metastases-to-the-kidney-in-patients-with-non-small-cell-lung-cancer-a-new-treatment-paradigm-for-durable-palliation
#18
Vivek Verma, Charles B Simone
BACKGROUND: Cancer metastasis to the kidney is a rare event; treatment must take into account the associated and unique anatomic and physiological challenges of treating the kidney. Stereotactic body radiation therapy (SBRT) is a widely emerging modality of radiotherapy touted for its ability to minimize irradiation to surrounding tissues and to provide a vastly shortened treatment course that is highly biologically potent. However, the use of SBRT to treat kidney neoplasms has been described in only a few case reports generally for primary renal malignancies...
April 2017: Annals of Palliative Medicine
https://www.readbyqxmd.com/read/28480541/response-assessment-of-stereotactic-body-radiation-therapy-using-dynamic-contrast-enhanced-integrated-mr-pet-in-non-small-cell-lung-cancer-patients
#19
Yu-Sen Huang, Jenny Ling-Yu Chen, Feng-Ming Hsu, Jei-Yie Huang, Wei-Chun Ko, Yi-Chang Chen, Fu-Shan Jaw, Ruoh-Fang Yen, Yeun-Chung Chang
PURPOSE: To evaluate the response in patients undergoing SBRT using dynamic contrast-enhanced (DCE) integrated magnetic resonance positron emission tomography (MR-PET). Stereotactic body radiation therapy (SBRT) is efficacious as a front-line local treatment for non-small cell lung cancer (NSCLC). MATERIALS AND METHODS: We prospectively enrolled 19 lung tumors in 17 nonmetastatic NSCLC patients who were receiving SBRT as a primary treatment. They underwent DCE-integrated 3T MR-PET before and 6 weeks after SBRT...
May 8, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28476219/dose-to-heart-substructures-is-associated-with-non-cancer-death-after-sbrt-in-stage-i-ii-nsclc-patients
#20
Barbara Stam, Heike Peulen, Matthias Guckenberger, Frederick Mantel, Andrew Hope, Maria Werner-Wasik, Jose Belderbos, Inga Grills, Nicolette O'Connell, Jan-Jakob Sonke
BACKGROUND AND PURPOSE: To investigate potential associations between dose to heart (sub)structures and non-cancer death, in early stage non-small cell lung cancer (NSCLC) patients treated with stereotactic body radiation therapy (SBRT). METHODS: 803 patients with early stage NSCLC received SBRT with predominant schedules of 3×18Gy (59%) or 4×12Gy (19%). All patients were registered to an average anatomy, their planned dose deformed accordingly, and dosimetric parameters for heart substructures were obtained...
May 2, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
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