Lung tumor motion change during stereotactic body radiotherapy (SBRT): an evaluation using MRI
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Lung tumor motion change during stereotactic body radiotherapy (SBRT): an evaluation using MRI
The purpose of this study is to investigate changes in lung tumor internal target volume during stereotactic body radiotherapy treatment (SBRT) using magnetic resonance imaging (MRI). Ten lung cancer patients (13 tumors) undergoing SBRT (48 Gy over four consecutive days) were evaluated. Each patient underwent three lung MRI evaluations: before SBRT (MRI-1), after fraction 3 of SBRT (MRI-3), and...
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Introduction: SBRT is an emerging radiotherapy technique for treating early-stage non-small cell lung cancers (NSCLC) or oligometastatic lesions to the lung [3, 4]. Significant tumor shrinkage has been observed in some patients during the course of SBRT [1, 2]. Adaptive planning has the potential to reduce radiation dose to organs of risk (OARs), and further escalate radiation dose to the tumor...
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PURPOSE To determine interfractional changes of lung tumor centroid position and tumor regression during stereotactic body radiation therapy (SBRT). METHODS AND MATERIALS 34 patients were treated by SBRT in 4-5 fractions to a median dose of 50 Gy. The CT scans acquired for verification were registered with simulation CT scans. The gross target volume (GTV) was contoured on all verification CT...
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OBJECTIVES After adjuvant or definitive radiation for pancreas cancer, there are limited conventional treatment options for recurrent pancreas cancer. We explored the role of (Stereotactic Body Radiotherapy) SBRT for reirradiation of recurrent pancreas Cancer. METHODS This is a retrospective study of patients reirradiated with SBRT for recurrent pancreas cancer. All patients were deemed unres...
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BACKGROUND AND PURPOSE Radiotherapy of central lung tumors carries a higher risk of treatment-related toxicity and local failure. In the era of aggressive oligometastic management the exploration of the proper dose-fractionation for metastatic central lung tumors is essential. MATERIALS AND METHODS Patients diagnosed with high-risk metastatic lesions of the central pulmonary tree comprised th...
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ژورنال
عنوان ژورنال: Journal of Applied Clinical Medical Physics
سال: 2014
ISSN: 1526-9914
DOI: 10.1120/jacmp.v15i3.4434