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Stereotactic body radiation therapy (SBRT) has become standard of care for inoperable early stage non-small cell lung cancer and is often used for recurrent lung cancer and pulmonary metastases. Radiation-induced lung toxicity (RILT), including radiation pneumonitis and pulmonary fibrosis, is a major concern for which it is important to understand dosimetric and clinical predictors.
This study aimed to evaluate the dosimetric accuracy of respiratory gated volumetric modulated arc therapy (VMAT) for lung stereotactic body radiation therapy (SBRT) under simulation conditions similar to the actual clinical situation using patient-specific lung phantoms and realistic target movements.
Radiation therapy might modify the cancer immune environment to enhance the antitumor effect of immune checkpoint inhibitors. We performed a feasibility study of nivolumab following stereotactic radiation therapy for chemotherapy pretreated advanced non-small-cell lung cancer.
Stereotactic body radiation therapy (SBRT) offers good lung local tumor control by the administration of a high dose per fraction in small volumes. SBRT preclinical modeling is now possible, and our aim was to develop a model of focal irradiation of the mouse lung and to investigate the impact of conditional HIF-1α deletion in the endothelium on radiation-induced tissue damage.
Stereotactic body radiation therapy (SBRT) is commonly used to treat primary or oligometastatic malignancies in the lung, though most of the available data describing the safety and efficacy of SBRT is for smaller tumors. The purpose of this study was to evaluate the impact of tumor size, among other factors, on local control (LC) and radiation pneumonitis (RP) in patients who received lung SBRT.
To date, no published randomized trials have shown stereotactic body radiation therapy (SBRT) to offer superior outcomes to conventionally fractionated radiation therapy (CFRT) for early-stage non-small cell lung cancer (NSCLC). The largest study to date, this investigation of a contemporary national database sought to evaluate practice patterns and survival between CFRT and SBRT.
In this study, we assessed the association of SBRT (stereotactic body radiotherapy) dose and volume with radiation pneumonitis (RP) risk in lung tumor.
Many patients with early stage non-small-cell lung cancer (ES-NSCLC) undergoing stereotactic body radiation therapy (SBRT) develop metastases, which is associated with poor outcomes. We sought to identify factors predictive of metastases after lung SBRT and created a risk stratification tool.
We report results from a prospective phase I/II trial for patients with centrally-located, early-stage non-small cell lung cancer (NSCLC) receiving stereotactic body radiation therapy (SBRT).
Basic fibroblast growth factor (bFGF) can protect the lung against radiation-induced pulmonary vascular endothelial apoptosis and subsequent radiation-induced lung injury (RILI). However, guiding bFGF to pulmonary vascular endothelial cells is a key determinant for the success of bFGF therapy. To improve the lung-targeting ability of bFGF, a lung endothelial cell-targeting peptide was fused to bFGF (LET-bFGF). An in vitro biological activity assay indicated that fusion of LET did not affect the bioactivity ...
The study aims to analyze the effects of induction treatment with cyclophosphamide (CYC) pulse therapy followed by maintenance treatment with other mild immunosuppressive agents on lung function in scleroderma (SSc) patients. Thirty patients with SSc (mean age 52 years, mean disease duration
The purpose of this study was to set up a beagle dog model, for radiation-induced lung injury, that would be able to supply fresh lung tissues in the different injury phases for research into oxidative stress levels and mitochondrial gene expression. Blood serum and tissues were collected via CT-guided core needle biopsies from dogs in the various phases of the radiation response over a 40-week period. Levels of reactive oxygen species (ROS) and manganese superoxide dismutase 2 (MnSOD) protein expression in...
We compared differences in patterns of local-regional failure, and the influence of adaptive planning on those patterns, in patients given passive scattering proton therapy (PSPT) vs. intensity-modulated photon therapy (IMRT) for non-small cell lung cancer.
Long term follow-up on NRG Oncology RTOG 0915 (NCCTG N0927): A randomized phase II study comparing 2 stereotactic body radiation therapy schedules for medically inoperable patients with stage I peripheral non-small cell lung cancer.
To present long-term results of XXXX, a randomized lung stereotactic body radiotherapy (SBRT) trial of 34 Gy in 1 fraction versus 48 Gy in 4 fractions.
The significance of clinical and dosimetric risk factors in relation to chest wall (CW) injury after stereotactic body radiation therapy (SBRT) for lung tumors were analyzed through a meta-analysis of 57 published studies.
To confirm the superiority of effective dose (D) over mean lung dose (MLD) for predicting risk of radiation pneumonitis (RP), using data from patients on a randomized trial of intensity-modulated radiotherapy (IMRT) versus passively scattered proton therapy (PSPT).
Assessment of tumour response after stereotactic ablative radiation therapy for lung cancer: A prospective quantitative hybrid F-fluorodeoxyglucose-positron emission tomography and CT perfusion study.
Stereotactic ablative radiotherapy (SABR) is a guideline-recommended treatment for inoperable stage I non-small cell lung cancer (NSCLC), but imaging assessment of response after SABR is difficult. The goal of this study was to evaluate imaging-based biomarkers of tumour response using dynamic F-FDG-PET and CT perfusion (CTP).
Monitoring lung function during pneumonia is essential for the evaluation of the effectiveness of therapy in ICU patients. Among various bedside techniques, two particularly interesting are the lung ultrasound and the transpulmonary thermodilution technique. In this observational single center study we want to assess the correlation between the lung ultrasound examination (LUS) and transpulmonary thermodilution volumetric parameters such as extravascular lung water index (EVLWI) and pulmonary vascular perme...
Boron neutron capture therapy (BNCT) combines selective accumulation of B carriers in tumor tissue with subsequent neutron irradiation. BNCT has been proposed for the treatment of multiple, non resectable, diffuse tumors in lung. The aim of the present study was to evaluate the therapeutic efficacy and toxicity of BNCT in an experimental model of lung metastases of colon carcinoma in BDIX rats and perform complementary survival studies.
With the increasing use of advanced radiation techniques such as intensity modulated radiation therapy, stereotactic radiation therapy, and proton therapy, radiation oncologists now have the tools to mitigate radiation-associated toxicities. This is of utmost importance in the treatment of a pediatric patient. To best utilize these advanced techniques to mitigate radiation-induced growth abnormalities, the radiation oncologist should be equipped with a nuanced understanding of the anatomy of centers of grow...
The aim of our study was to determine the maximum tolerated dose (MTD) and recommended dose of pemetrexed with concurrent thoracic radiation therapy for elderly patients with previously untreated locally advanced non-squamous non-small-cell lung cancer (NSCLC). Pemetrexed was administered intravenously on Days 1, 22, 43, 64, 85 and 106. The initial doses of pemetrexed were planned as follows: Level 1 (400 mg/m2) and Level 2 (500 mg/m2). Concurrent thoracic radiation therapy was administered in 2-Gy fraction...
The purpose of this study was to translate our in vitro therapy approach to an in vivo model. Increased glutamine uptake is known to drive cancer cell proliferation, making tumor cells glutamine-dependent. Studying lymph-node aspirates containing malignant lung tumor cells showed a strong correlation between glutamine consumption and glutathione (GSH) excretion. Subsequent experiments with A549 and H460 lung tumor cell lines provided additional evidence for glutamine's role in driving synthesis and excretio...
This study examines the characteristics and outcomes of patients with clinical stage I NSCLC identified by CT screening treated with definitive radiotherapy versus surgical resection. Very few screened patients are treated with radiation. Despite worse baseline characteristics in the radiation group, there was no significant difference in lung cancer specific survival when compared with patients treated with surgery.
An increasing number of studies show that cancer stem cells become more invasive and may escape into blood stream and lymph nodes before they have received a lethal dose during radiation therapy. Recently, it has been found that graphene oxide (GO) can selectively inhibit the proliferative expansion of cancer stem cells across multiple tumor types. In this study, we investigate the feasibility of using GO during radiotherapy to synergistically inhibit cancer stem cells, and lower the risk of cancer metastas...
Radiographic severity of radiation-induced lung injury (RILI) has not been well-studied. The goal of this study was to assess the CT appearance pattern and severity of RILI without consideration of the clinical presentation.