keyword
MENU ▼
Read by QxMD icon Read
search

Sbrt lung cancer

keyword
https://www.readbyqxmd.com/read/28297341/assessment-of-monte-carlo-algorithm-for-compliance-with-rtog-0915-dosimetric-criteria-in-peripheral-lung-cancer-patients-treated-with-stereotactic-body-radiotherapy
#1
Damodar Pokhrel, Sumit Sood, Rajeev Badkul, Hongyu Jiang, Christopher McClinton, Christopher Lominska, Parvesh Kumar, Fen Wang
The purpose of the study was to evaluate Monte Carlo-generated dose distributions with the X-ray Voxel Monte Carlo (XVMC) algorithm in the treatment of peripheral lung cancer patients using stereotactic body radiotherapy (SBRT) with non-protocol dose-volume normalization and to assess plan outcomes utilizing RTOG 0915 dosimetric compliance criteria. The Radiation Therapy Oncology Group (RTOG) protocols for non-small cell lung cancer (NSCLC) currently require radiation dose to be calculated using tissue density heterogeneity corrections...
May 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28297307/development-and-evaluation-of-a-clinical-model-for-lung-cancer-patients-using-stereotactic-body-radiotherapy-sbrt-within-a-knowledge-based-algorithm-for-treatment-planning
#2
Karen Chin Snyder, Jinkoo Kim, Anne Reding, Corey Fraser, James Gordon, Munther Ajlouni, Benjamin Movsas, Indrin J Chetty
The purpose of this study was to describe the development of a clinical model for lung cancer patients treated with stereotactic body radiotherapy (SBRT) within a knowledge-based algorithm for treatment planning, and to evaluate the model performance and applicability to different planning techniques, tumor locations, and beam arrangements. 105 SBRT plans for lung cancer patients previously treated at our institution were included in the development of the knowledge-based model (KBM). The KBM was trained with a combination of IMRT, VMAT, and 3D CRT techniques...
November 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28285694/sbrt-for-oligoprogressive-oncogene-addicted-nsclc
#3
REVIEW
L Basler, S G C Kroeze, M Guckenberger
Lung cancer is one of the leading causes of cancer death in men and women and treatment outcome continues to lag behind other common cancer types. A subset of lung adenocarcinoma patients exhibit a somatic mutation in EGFR or an ALK rearrangement. In these patients, targeted TKI therapy results in higher response rates, improved PFS and reduced side effects compared with platinum-based chemotherapy. Despite initial activity of the TKIs, ultimately all patients present with disease progression after about a year on TKI therapy due to resistance development...
April 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28273349/a-radiobiological-model-of-reoxygenation-and-fractionation-effects
#4
Mariana Guerrero, David J Carlson
PURPOSE: To develop a radiobiological model of reoxygenation that fulfills the following goals.: 1 Quantify the reoxygenation effect for different fractionations. 2 Model the hypoxic fraction in tumors as a function of the number of radiation treatments. 3 Develop a simple analytical expression for a reoxygenation term in biological effect calculations. METHOD: The model considers tumor cells in two compartments: an aerobic (or normoxic) population of cells and a hypoxic population including cells under a range of reduced oxygen concentrations...
March 8, 2017: Medical Physics
https://www.readbyqxmd.com/read/28270731/guideline-for-radiotherapy-with-curative-intent-in-patients-with-early-stage-medically-inoperable-non-small-cell-lung-cancer
#5
C B Falkson, E T Vella, E Yu, M El-Mallah, R Mackenzie, P M Ellis, Y C Ung
OBJECTIVES: For this guideline, we investigated the effectiveness of radiotherapy with curative intent in medically inoperable patients with early-stage non-small-cell lung cancer (nsclc). METHODS: The guideline was developed by Cancer Care Ontario's Program in Evidence-Based Care and by the Lung Cancer Disease Site Group through a systematic review of mainly retrospective studies, expert consensus, and formal internal and external reviews. RECOMMENDATIONS: ■ Stereotactic body radiation therapy (sbrt) with curative intent is an option that should be considered for patients with early-stage, node-negative, medically inoperable nsclc...
February 2017: Current Oncology
https://www.readbyqxmd.com/read/28266166/prognositc-significance-of-suvmax-on-pretreatment-18-f-fdg-pet-ct-in-early-stage-non-small-cell-lung-cancer-treated-with-stereotactic-body-radiotherapy-a-meta-analysis
#6
Min Dong, Jing Liu, Xiaorong Sun, Ligang Xing
INTRODUCTION: The prognostic importance of the (18) F-FDG PET maximum standardized uptake value (SUVmax ) for early stage non-small cell lung cancer (NSCLC) patients receiving stereotactic body radiotherapy (SBRT) is not well defined. The purpose of this meta-analysis is to evaluate the efficacy of SUVmax on pretreatment (18) F-FDG PET imaging to predict prognosis after SBRT. METHODS: All published English-language studies that assessed the treatment response after SBRT in patients with early-stage NSCLC using (18) F-FDG PET were collected from the EMBASE and MEDLINE databases...
March 7, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28258901/stereotactic-body-radiation-therapy-in-octo-and-nonagenarians-for-the-treatment-of-early-stage-lung-cancer
#7
Meredith Giuliani, Andrew Hope, Matthias Guckenberger, Frederick Mantel, Heike Peulen, Jan-Jakob Sonke, José Belderbos, Maria Werner-Wasik, Hong Ye, Inga S Grills
PURPOSE: To determine the safety and efficacy of lung stereotactic body radiation therapy (SBRT) in octo- and nonagenarians and to compare their outcomes with those of younger patients. METHODS AND MATERIALS: Patients with primary lung cancer treated with SBRT were identified from a multi-institutional (5 institutions) database of 1083 cases. Details of patient factors, treatment specifics, toxicity, and clinical outcomes were extracted from the database. All events were calculated from the end of radiation therapy...
January 9, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28244414/influence-of-fractionation-scheme-and-tumor-location-on-toxicities-after-stereotactic-body-radiation-therapy-for-large-%C3%A2-5-cm-non-small-cell-lung-cancer-a-multi-institutional-analysis
#8
Vivek Verma, Valerie K Shostrom, Weining Zhen, Mutian Zhang, Steve E Braunstein, John Holland, Christopher L Hallemeier, Matthew M Harkenrider, Adrian Iskhanian, Salma K Jabbour, Albert Attia, Percy Lee, Kyle Wang, Roy H Decker, Ronald C McGarry, Charles B Simone
PURPOSE: To describe the impact of fractionation scheme and tumor location on toxicities in stereotactic body radiation therapy (SBRT) for ≥5-cm non-small cell lung cancer (NSCLC), as part of a multi-institutional analysis. METHODS: Patients with primary ≥5-cm N0 M0 NSCLC who underwent ≤5-fraction SBRT were examined across multiple high-volume SBRT centers. Collected data included clinical/treatment parameters; toxicities were prospectively assessed at each institution according to the Common Terminology Criteria for Adverse Events...
March 15, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28242140/mri-guided-lung-sbrt-present-and-future-developments
#9
REVIEW
Martin J Menten, Andreas Wetscherek, Martin F Fast
Stereotactic body radiotherapy (SBRT) is rapidly becoming an alternative to surgery for the treatment of early-stage non-small cell lung cancer patients. Lung SBRT is administered in a hypo-fractionated, conformal manner, delivering high doses to the target. To avoid normal-tissue toxicity, it is crucial to limit the exposure of nearby healthy organs-at-risk (OAR). Current image-guided radiotherapy strategies for lung SBRT are mostly based on X-ray imaging modalities. Although still in its infancy, magnetic resonance imaging (MRI) guidance for lung SBRT is not exposure-limited and MRI promises to improve crucial soft-tissue contrast...
February 24, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28238577/geometrical-and-dosimetrical-uncertainties-in-hypofractionated-radiotherapy-of-the-lung-a-review
#10
REVIEW
Marco Schwarz, Giovanni Mauro Cattaneo, Livia Marrazzo
The application of high precision hypofractionated regimes (a.k.a. stereotactic body radiotherapy (SBRT)) to the treatment of lung cancer is a 'success story' of radiotherapy. From the technical perspective, lung SBRT is a challenging technique as all aspects of the treatment workflow, from imaging to dose calculation to treatment delivery, should be carefully handled in order to ensure consistency between planned and delivered dose. In this review such technical aspects are presented and discussed, looking at what has been developed over the years...
February 23, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28215851/a-novel-neoadjuvant-therapy-for-operable-locally-invasive-non-small-cell-lung-cancer-phase-i-study-of-neoadjuvant-stereotactic-body-radiotherapy-linnearre-i-nct02433574
#11
Nhu-Tram A Nguyen, Naghmeh Isfahanian, Gregory Pond, Wael Hanna, Jean-Claude Cutz, James Wright, Anand Swaminath, Yaron Shargall, Tom Chow, Marcin Wierzbicki, Gordon Okawara, Kimmen Quan, Christian Finley, Rosalyn Juergens, Theodoros Tsakiridis
BACKGROUND: Despite improved staging and surgical techniques, the rate of incomplete resection (R1) of non-small-cell lung cancer (NSCLC) has not significantly decreased. Patients with R1 resection have worse survival compared with those with complete resection (R0). Stereotactic body radiotherapy (SBRT) is a rapid and convenient radiotherapy treatment that delivers high-dose radiotherapy to tumors with high precision while sparing normal organs. Although its efficacy in treating small lung tumors is documented, its use as neoadjuvant therapy for locally advanced (LA) NSCLC has not been examined...
January 31, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28168606/strategies-for-translating-evidence-based-medicine-in-lung-cancer-into-community-practice
#12
REVIEW
Stephen A Rosenberg, Andrew M Baschnagel, Stephen J Bagley, Nadine Housri
The landscape of non-small cell lung cancer (NSCLC) treatment has rapidly evolved over the past decade. This is exemplified by the use of molecular targeted agents, immunotherapies, and newer technologies such as stereotactic body radiotherapy (SBRT). As the translation of preclinical discoveries into clinical practice continues, the effective dissemination and implementation of evidence-based treatment of NSCLC will remain a foremost challenge for oncologists. To further extend evidence-based medicine into the community setting, community oncologists are being engaged on multiple fronts including leadership and participation in national clinical trials and utilization of internet-based resources...
January 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28156666/patterns-of-radiation-therapy-technology-use-in-the-treatment-of-bone-metastases
#13
Robert Anton Olson, Shilo Lefresne, Michael R McKenzie
211 Background: In recent years, there has been a transition from two-dimensional radiation therapy (2DRT) planning towards more advanced techniques such as three-dimensional conformal radiation therapy (3D-CRT), volumetric modulated arc therapy (VMAT), and stereotactic body radiation therapy (SBRT). Our study aim was to analyze these trends in the treatment of bone metastases. METHODS: All patients aged 18 and older who had received palliative intent RT for bone metastases between 2009-2014 and referred to any 1 of 6 regional cancer centers in British Columbia, Canada were reviewed...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28143558/lung-metastases-treated-with-stereotactic-body-radiotherapy-the-rssearch%C3%A2-patient-registry-s-experience
#14
Anthony Ricco, Joanne Davis, William Rate, Jun Yang, David Perry, John Pablo, David D'Ambrosio, Sanjeev Sharma, Srinath Sundararaman, James Kolker, Kimberly M Creach, Rachelle Lanciano
OBJECTIVES: To report overall survival and local control for patients identified in the RSSearch® Patient Registry with metastatic cancer to the lung treated with SBRT. METHODS: Seven hundred two patients were identified with lung metastases in the RSSearch® Registry. Of these patients, 577 patients had SBRT dose and fractionation information available. Patients were excluded if they received prior surgery, radiation, or radiofrequency ablation to the SBRT treated area...
February 1, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28133340/-long-term-local-control-with-radiofrequency-ablation-or-radiotherapy-for-second-third-and-fourth-lung-tumors-after-lobectomy-for-primary-lung-cancer
#15
Hideoki Yokouchi, Masaki Miyazaki, Takeaki Miyamoto, Takafumi Minami, Fumio Tsuji, Koji Mikami, Kohei Murata
A 78-year-old woman developed second, third, and fourth lung tumors at intervals of 1-3 years after left upper lobectomy for primary lung cancer. The tumors were controlled with radiofrequency ablation(RFA)or conventionalconformalradiotherapy for 9 years postoperatively. For the treatment of second primary lung cancer or lung metastasis after surgical resection of the primary lung cancer, reoperation is not recommended because of the impaired respiratory reserve. Thus, local therapy such as radiotherapy or RFA is applied in some cases...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28130055/optimal-dose-and-fraction-number-in-sbrt-of-lung-tumours-a-radiobiological-analysis
#16
Ruggero Ruggieri, Pavel Stavrev, Stefania Naccarato, Nadejda Stavreva, Filippo Alongi, Alan E Nahum
The efficacy of Stereotactic Body Radiation Therapy (SBRT) in early-stage non-small cell lung cancer for severely hypofractionated schedules is clinically proven. Tumour control probability (TCP) modelling might further optimize prescription dose and number of treatment fractions (n). To this end, we will discuss the following controversial questions. Which is the most plausible cell-survival model at doses per fraction (d) as high as 20Gy? Do clinical data support a dose-response relationship with saturation over some threshold-dose? Given the reduced re-oxygenation for severe hypofractionation, is the inclusion of tumour hypoxia in TCP modelling relevant? Can iso-effective schedules be derived by assuming a homogeneous tumour-cell population with α/β≈10Gy, or should distinct cell subpopulations, with different α/β values, be taken into account? Is there scope for patient-specific individualization of n? Despite the difficulty of providing definite answers to the above questions, reasonable suggestions for lung SBRT can be derived from the literature...
January 24, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28114239/clinical-outcomes-of-stereotactic-body-radiotherapy-in-oligometastatic-gynecological-cancer
#17
Concetta Laliscia, Maria Grazia Fabrini, Durim Delishaj, Riccardo Morganti, Carlo Greco, Martina Cantarella, Roberta Tana, Fabiola Paiar, Angiolo Gadducci
OBJECTIVE: The objective of this study was to assess the role of stereotactic body radiotherapy (SBRT) in the treatment of distantly recurrent, oligometastatic gynecological cancer. METHODS: The hospital records of 45 patients with F-fluorodeoxyglucose (F-FDG) positron emission tomography positive, distantly recurrent, oligometastatic gynecological cancer were reviewed. All these patients had a number of target lesions less than 5, with largest diameter less than 6 cm...
February 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28110960/dose-effect-analysis-of-radiation-induced-rib-fractures-after-thoracic-sbrt
#18
Barbara Stam, Erik van der Bijl, Heike Peulen, Maddalena M G Rossi, José S A Belderbos, Jan-Jakob Sonke
BACKGROUND AND PURPOSE: To determine a dose-effect relation for radiation induced rib fractures after stereotactic body radiation therapy (SBRT) in early stage non-small cell lung cancer (NSCLC). Automatic rib delineation has enabled the analysis of a large patient group. MATERIAL AND METHODS: Four-hundred and sixty-six patients with stage I/II NSCLC received SBRT with a median of 54Gy in 3 fractions. The optimal EQD2-corrected dose parameter to predict (a)symptomatic fractures was found using Cox regression...
January 19, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28102933/what-if-a-tumor-is-significantly-enlarged-just-before-stereotactic-body-radiation-therapy-a-case-report-and-review-of-the-literature
#19
Hung-Jen Chen, Ji-An Liang, Chih-Yi Chen, Yang-Hao Yu, Chun-Ru Chien
Stereotactic body radiation therapy (SBRT) plays an important role in early stage non-small cell lung cancer. Tumor growth before radiotherapy planning (RTP) or during SBRT has been reported in lung cancer patients; however, little is known of growth during the period in-between (i.e. after RTP but before SBRT). An 83-year-old man referred to our hospital and diagnosed with medically inoperable non-small cell lung cancer was noted to have significant tumor progression on day 1 of cone beam computed tomography just before the planned SBRT delivery...
March 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28089158/cardiac-dose-and-survival-after-stereotactic-body-radiotherapy-for-early-stage-non-small-cell-lung-cancer
#20
Amode R Tembhekar, Cari L Wright, Megan E Daly
INTRODUCTION: Recent analyses have identified cardiac dose as an important predictor of overall survival (OS) after chemoradiation for locally advanced non-small-cell lung cancer (NSCLC). However, the survival influence of the cardiac dose after stereotactic body radiotherapy (SBRT) is unknown. We performed a dose-volume histogram (DVH) analysis of patients treated with SBRT for early stage NSCLC to examine survival and cardiac toxicity. MATERIALS AND METHODS: We reviewed the medical records of patients who had undergone SBRT for early-stage NSCLC from June 2007 to June 2015 and documented the cardiac DVH parameters, including the maximum and mean dose and percentage of volume receiving >5, >10, >20, and >30 Gy (V5, V10, V20, and V30, respectively)...
December 22, 2016: Clinical Lung Cancer
keyword
keyword
107556
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"