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Lung SBRT

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https://www.readbyqxmd.com/read/28812120/risk-adapted-robotic-stereotactic-body-radiation-therapy-for-inoperable-early-stage-non-small-cell-lung-cancer
#1
Susanne Temming, Martin Kocher, Erich Stoelben, Lars Hagmeyer, De-Hua Chang, Konrad Frank, Khosro Hekmat, Juergen Wolf, Wolfgang W Baus, Robert Semrau, Christian Baues, S Marnitz
PURPOSE: To evaluate efficacy and toxicity of stereotactic body radiation therapy (SBRT) with CyberKnife® (Accuray, Sunnyvale, CA, USA) in a selected cohort of primary, medically inoperable early-stage non-small cell lung cancer (NSCLC) patients. METHODS: From 2012 to 2016, 106 patients (median age 74 years, range 50-94 years) with primary NSCLC were treated with SBRT using CyberKnife®. Histologic confirmation was available in 87 patients (82%). For mediastinal staging, 92 patients (87%) underwent (18)F-fluorodeoxyglucose positron-emission tomography (18-FDG-PET) and/or endobronchial ultrasound (EBUS)-guided lymph node biopsy or mediastinoscopy...
August 15, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28802976/prognostic-factors-associated-with-the-accuracy-of-deformable-image-registration-in-lung-cancer-patients-treated-with-stereotactic-body-radiotherapy
#2
Yasuharu Sugawara, Hidenobu Tachibana, Noriyuki Kadoya, Nozomi Kitamura, Amit Sawant, Keiichi Jingu
We evaluated the accuracy of an in-house program in lung stereotactic body radiation therapy (SBRT) cancer patients, and explored the prognostic factors associated with the accuracy of deformable image registrations (DIRs). The accuracy of the 3 programs which implement the free-form deformation and the B-spline algorithm was compared regarding the structures on 4-dimensional computed tomography (4DCT) image datasets between the peak-inhale and peak-exhale phases. The dice similarity coefficient (DSC) and normalized DSC (NDSC) were measured for the gross tumor volumes from 19 lung SBRT patients...
August 9, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28800837/outcomes-of-invasive-mediastinal-nodal-staging-versus-positron-emission-tomography-staging-alone-for-early-stage-non-small-cell-lung-cancer-treated-with-stereotactic-body-radiation-therapy
#3
Caitlin A Schonewolf, Vivek Verma, Carl M Post, Abigail T Berman, Melissa A Frick, Anil Vachani, Chi Lin, Charles B Simone
BACKGROUND: The benefit of invasive mediastinal nodal staging (IMNS) in addition to positron emission tomography-computed tomography (PET/CT) is undefined for early stage non-small cell lung cancer (NSCLC). This multi-institutional investigation aimed to evaluate outcomes and patterns of failure in patients staged with PET/CT with or without additional IMNS. METHODS: Two academic centers assessed all consecutive patients staged with PET/CT for early-stage, primary lung NSCLC (cT1-2aN0M0) treated with SBRT...
July 14, 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28794640/volumetric-modulated-arc-therapy-for-treatment-of-solid-tumors-current-insights
#4
REVIEW
Gabriella Macchia, Francesco Deodato, Savino Cilla, Silvia Cammelli, Alessandra Guido, Martina Ferioli, Giambattista Siepe, Vincenzo Valentini, Alessio Giuseppe Morganti, Gabriella Ferrandina
AIM: This article discusses the current use of volumetric modulated arc therapy (VMAT) techniques in clinical practice and reviews the available data from clinical outcome studies in different clinical settings. An overview of available literature about clinical outcomes with VMAT stereotactic/radiosurgical treatment is also reported. MATERIALS AND METHODS: All published manuscripts reporting the use of VMAT in a clinical setting from 2009 to November 2016 were identified...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28760507/use-of-a-second-dose-calculation-algorithm-to-check-dosimetric-parameters-for-the-dose-distribution-of-a-first-dose-calculation-algorithm-for-lung-sbrt-plans
#5
Yusuke Tsuruta, Mitsuhiro Nakamura, Yuki Miyabe, Manabu Nakata, Yoshitomo Ishihara, Nobutaka Mukumoto, Mami Akimoto, Tomohiro Ono, Shinsuke Yano, Kyoji Higashimura, Yukinori Matsuo, Takashi Mizowaki, Masahiro Hiraoka
PURPOSE: To verify lung stereotactic body radiotherapy (SBRT) plans using a secondary treatment planning system (TPS) as an independent method of verification and to define tolerance levels (TLs) in lung SBRT between the primary and secondary TPSs. METHODS: A total of 147 lung SBRT plans calculated using X-ray voxel Monte Carlo (XVMC) were exported from iPlan to Eclipse in DICOM format. Dose distributions were recalculated using the Acuros XB (AXB) and the anisotropic analytical algorithm (AAA), while maintaining monitor units (MUs) and the beam arrangement...
July 28, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28749172/no-differences-in-radiological-changes-after-3d-conformal-vs-vmat-based-stereotactic-radiotherapy-for-early-stage-non-small-cell-lung-cancer
#6
Serena Badellino, Jacopo Di Muzio, Giulia Schivazappa, Alessia Guarneri, Riccardo Ragona, Sara Bartoncini, Elisabetta Trino, Andrea Riccardo Filippi, Paolo Fonio, Umberto Ricardi
OBJECTIVES: To compare patterns of acute and late radiological lung injury following either 3D or image-guided VMAT stereotactic radiotherapy for stage I Non-Small-Cell Lung Cancer (NSCLC). METHODS: We included 148 patients from a prospective mono-institutional SBRT series (time interval 2004-2014), treated with prescription BED10 Gy (at 80%) in the range 100-120 Gy. The first 95 patients (2004-2010) were planned with 3D-CRT, with a stereotactic body frame. The second cohort (2010-2014) included 53 patients, planned with volumetric IMRT on a smaller PTV generated from a patient's specific ITV, with a frameless approach through cone-beam CT guidance...
July 27, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28740453/clinical-outcomes-of-130-patients-with-primary-and-secondary-lung-tumors-treated-with-cyberknife-robotic-stereotactic-body-radiotherapy
#7
Zsolt Levente Janvary, Nicolas Jansen, Veronique Baart, Magali Devillers, David Dechambre, Eric Lenaerts, Laurence Seidel, Nicole Barthelemy, Patrick Berkovic, Akos Gulyban, Ferenc Lakosi, Zsolt Horvath, Philippe A Coucke
BACKGROUND: Authors report clinical outcomes of patients treated with robotic stereotactic body radiotherapy (SBRT) for primary, recurrent and metastatic lung lesions. PATIENTS AND METHODS: 130 patients with 160 lesions were treated with Cyberknife SBRT, including T1-3 primary lung cancers (54%), recurrent tumors (22%) and pulmonary metastases (24%). The mean biologically equivalent dose (BED10Gy) was 151 Gy (72-180 Gy). Median prescribed dose for peripheral and central lesions was 3×20 Gy and 3×15 Gy, respectively...
June 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/28739159/lung-stereotactic-body-radiation-therapy-sbrt-for-early-stage-non-small-cell-lung-cancer-in-the-very-elderly-%C3%A2-80years-old-extremely-safe-and-effective
#8
Paul Kreinbrink, Philip Blumenfeld, George Tolekidis, Neilayan Sen, David Sher, Gaurav Marwaha
OBJECTIVE: Stereotactic body radiotherapy (SBRT) for early-stage non-small-cell lung cancer (NSCLC) is the standard of care in medically inoperable patients. In very elderly patients, previous studies have shown SBRT to offer excellent local control, though with higher toxicities than in younger populations. We report our institutional experience using SBRT in the definitive management of NSCLC in patients ≥80years old. MATERIALS AND METHODS: Using an IRB-approved registry of 158 patients treated with definitive-intent lung SBRT for early-stage NSCLC at our institution between 2010 and 2016, 31 consecutively treated patients ≥80years of age were identified...
July 21, 2017: Journal of Geriatric Oncology
https://www.readbyqxmd.com/read/28736284/adam-a-breathing-phantom-for-lung-sbrt-quality-assurance
#9
Stefania Pallotta, Silvia Calusi, Leonardo Foggi, Riccardo Lisci, Laura Masi, Livia Marrazzo, Cinzia Talamonti, Lorenzo Livi, Gabriele Simontacchi
PURPOSE: Radiotherapy treatment of moving lesions is a challenging task in which different strategies can be used to adequately treat the tumor while sparing the surrounding tissue. The complexity of these strategies requires accurate and appropriate quality assurance tests. For this purpose, ADAM (Anthropomorphic Dynamic breAthing Model), a new phantom which simulates realistic patient breathing, was developed aiming to test the image quality and dose delivery in lung cancer treatments...
July 20, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28721899/gaps-in-radiation-therapy-awareness-results-from-an-educational-multi-institutional-survey-of-us-internal-medicine-residents
#10
MULTICENTER STUDY
Narek Shaverdian, Sun Mi Yoo, Ryan Cook, Eric M Chang, Naomi Jiang, Ye Yuan, Kiri Sandler, Michael Steinberg, Percy Lee
PURPOSE: Internists and primary care providers play a growing role in cancer care. We therefore evaluated the awareness of radiation therapy in general and specifically the clinical utility of stereotactic body radiation therapy (SBRT) for early-stage non-small cell lung cancer (NSCLC) among current US internal medicine residents. METHODS AND MATERIALS: A web-based institutional review board-approved multi-institutional survey was distributed to US internal medicine residency programs...
August 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28711478/dosimetric-comparison-of-peripheral-nsclc-sbrt-using-acuros-xb-and-aaa-calculation-algorithms
#11
Chloe C H Ong, Khong Wei Ang, Roger C X Soh, Kah Ming Tin, Jerome H H Yap, James C L Lee, Christopher M Bragg
There is a concern for dose calculation in highly heterogenous environments such as the thorax region. This study compares the quality of treatment plans of peripheral non-small cell lung cancer (NSCLC) stereotactic body radiation therapy (SBRT) using 2 calculation algorithms, namely, Eclipse Anisotropic Analytical Algorithm (AAA) and Acuros External Beam (AXB), for 3-dimensional conformal radiation therapy (3DCRT) and volumetric-modulated arc therapy (VMAT). Four-dimensional computed tomography (4DCT) data from 20 anonymized patients were studied using Varian Eclipse planning system, AXB, and AAA version 10...
July 12, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28707533/role-of-extracranial-stereotactic-body-radiation-therapy-in-the-management-of-stage-iv-melanoma
#12
Davide Franceschini, Ciro Franzese, Fiorenza De Rose, Pierina Navarria, Giuseppe R D'Agostino, Tiziana Comito, Angelo Tozzi, Maria C Tronconi, Lorenza Di Guardo, Michele Del Vecchio, Marta Scorsetti
OBJECTIVES: To investigate the role of extracranial stereotactic body radiation therapy (SBRT) in the management of oligometastatic melanoma. METHODS: Patients affected by stage IV melanoma, with less than three extracranial metastatic lesions, who received SBRT were included in this analysis. Acute and late toxicity, local control (LC), overall survival (OS) and progression free survival (PFS) were analyzed. RESULTS: Thirty one patients were included in the study...
July 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28694595/minimally-invasive-separation-surgery-plus-adjuvsant-stereotactic-radiotherapy-in-the-management-of-spinal-epidural-metastases
#13
Mazda K Turel, Mena G Kerolus, John E O'Toole
AIM: This study aimed to describe the application of minimally invasive surgery (MIS) in separation surgery combined with postoperative stereotactic body radiation therapy (SBRT) in patients with symptomatic metastatic epidural spinal disease. METHODS: Three techniques are described: (1) MIS posterior separation surgery alone, (2) MIS posterolateral separation surgery with percutaneous pedicle screw placement, and (3) MIS lateral corpectomy with percutaneous pedicle screw placement...
April 2017: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/28687397/estro-acrop-consensus-guideline-on-implementation-and-practice-of-stereotactic-body-radiotherapy-for-peripherally-located-early-stage-non-small-cell-lung-cancer
#14
Matthias Guckenberger, Nicolaus Andratschke, Karin Dieckmann, Mischa S Hoogeman, Morten Hoyer, Coen Hurkmans, Stephanie Lang, Eric Lartigau, Alejandra Méndez Romero, Suresh Senan, Dirk Verellen
BACKGROUND: Stereotactic body radiotherapy (SBRT) has become the standard of care for medically inoperable patients with peripherally located, early stage non-small cell lung cancer (NSCLC), and for those refusing surgical resection. Despite the availability of national and international guidelines, there exists substantial variability in many aspects of SBRT practice. METHODS: The ESTRO ACROP guideline is based on a questionnaire covering all aspects of SBRT implementation and practice (n=114 items)...
July 4, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28661100/estimation-of-lung-tumor-position-from-multiple-anatomical-features-on-4d-ct-using-multiple-regression-analysis
#15
Tomohiro Ono, Mitsuhiro Nakamura, Yoshinori Hirose, Kenji Kitsuda, Yuka Ono, Takashi Ishigaki, Masahiro Hiraoka
To estimate the lung tumor position from multiple anatomical features on four-dimensional computed tomography (4D-CT) data sets using single regression analysis (SRA) and multiple regression analysis (MRA) approach and evaluate an impact of the approach on internal target volume (ITV) for stereotactic body radiotherapy (SBRT) of the lung. Eleven consecutive lung cancer patients (12 cases) underwent 4D-CT scanning. The three-dimensional (3D) lung tumor motion exceeded 5 mm. The 3D tumor position and anatomical features, including lung volume, diaphragm, abdominal wall, and chest wall positions, were measured on 4D-CT images...
June 29, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28657157/cyberknife-with-integrated-ct-on-rails-system-description-and-first-clinical-application-for-pancreas-sbrt
#16
Chrysi Papalazarou, Gijsbert J Klop, Maaike T W Milder, Johannes P A Marijnissen, Vikas Gupta, Ben J M Heijmen, Joost J M E Nuyttens, Mischa S Hoogeman
PURPOSE: This paper reports on the integration of a sliding-gantry CT-on-rails with a robotic linear accelerator. METHODS: The system consists of a SOMATOM Definition AS CT scanner (Siemens Healthcare, Forchheim, Germany) and a CyberKnife M6 FIM (Accuray, Inc., Sunnyvale, CA, USA). Additional movement programs were implemented in the robotic treatment table (RoboCouch, Accuray Inc.) to move between CT and treatment position. Acceptance testing was performed on the CT scanner according to AAPM83 guidelines, as well as safety tests for collision avoidance and electromagnetic (EM) compatibility...
June 28, 2017: Medical Physics
https://www.readbyqxmd.com/read/28655592/prognostic-value-of-radiation-pneumonitis-after-stereotactic-body-radiotherapy-effect-of-pulmonary-emphysema-quantitated-using-ct%C3%A2-images
#17
Takaya Yamamoto, Noriyuki Kadoya, Yoshinao Sato, Haruo Matsushita, Rei Umezawa, Masaki Kubozono, Yojiro Ishikawa, Maiko Kozumi, Noriyoshi Takahashi, Yohei Morishita, Yu Katagiri, Kiyokazu Sato, Kengo Ito, Ken Takeda, Keiichi Jingu
BACKGROUND: The aim of this study was to determine the prognostic factors of radiation pneumonitis (RP) after stereotactic body radiotherapy (SBRT). PATIENTS AND METHODS: A total of 50 patients (36 male and 14 female) were treated with SBRT for 42 primary lung cancers and 8 metastatic lung cancers. SBRT was performed with 48 Gy in 4 fractions to the isocenter or with 40 Gy in 4 fractions covering 95% of the planning target volume. Percentage of low attenuation area (%LAA) was defined as percentage of the lung area with attenuation of -860 Hounsfield units (HU) or lower (%LAA-860) or of -960 HU or lower (%LAA-960)...
June 8, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28652770/stereotactic-body-radiotherapy-or-stereotactic-ablative-radiotherapy-versus-surgery-for-patients-with-t1-3n0m0-non-small-cell-lung-cancer-a-systematic-review-and-meta-analysis
#18
Ming Li, Xiaodong Yang, Yuhan Chen, Xinyu Yang, Xiyu Dai, Fenghao Sun, Li Zhang, Cheng Zhan, Mingxiang Feng, Qun Wang
BACKGROUND: Stereotactic body radiotherapy (SBRT) or stereotactic ablative radiotherapy (SABR) has been reported to be a comparable alternative therapy to surgery for patients with T1-3N0M0 non-small cell lung cancer (NSCLC). However, it has not been clarified whether SBRT/SABR is as effective as surgery. We conducted this study to compare the efficacy of SBRT/SABR and surgery in the treatment of T1-3N0M0 NSCLC. MATERIALS AND METHODS: An electronic and a manual search of the literature was conducted in PubMed, Embase, and the Wiley Online Library in all published data before January 1, 2017...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28647449/igrt-and-motion-management-during-lung-sbrt-delivery
#19
REVIEW
Vincent Caillet, Jeremy T Booth, Paul Keall
Patient motion can cause misalignment of the tumour and toxicities to the healthy lung tissue during lung stereotactic body radiation therapy (SBRT). Any deviations from the reference setup can miss the target and have acute toxic effects on the patient with consequences onto its quality of life and survival outcomes. Correction for motion, either immediately prior to treatment or intra-treatment, can be realized with image-guided radiation therapy (IGRT) and motion management devices. The use of these techniques has demonstrated the feasibility of integrating complex technology with clinical linear accelerator to provide a higher standard of care for the patients and increase their quality of life...
June 21, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28638802/target-migration-from-re-inflation-of-adjacent-atelectasis-during-lung-stereotactic-body-radiotherapy
#20
Bijing Mao, Vivek Verma, Dandan Zheng, Xiaofeng Zhu, Nathan R Bennion, Abhijeet R Bhirud, Maria A Poole, Weining Zhen
Stereotactic body radiotherapy (SBRT) is a widely accepted option for the treatment of medically inoperable early-stage non-small cell lung cancer (NSCLC). Herein, we highlight the importance of interfraction image guidance during SBRT. We describe a case of early-stage NSCLC associated with segmental atelectasis that translocated 15 mm anteroinferiorly due to re-expansion of the adjacent segmental atelectasis following the first fraction. The case exemplifies the importance of cross-sectional image-guided radiotherapy that shows the intended target, as opposed to aligning based on rigid anatomy alone, especially in cases associated with potentially "volatile" anatomic areas...
June 10, 2017: World Journal of Clinical Oncology
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