It was possible to estimate the risk of a moderate radiation induced pneumonitis (CTC °I-II) in 70 NSCLC patients treated with hypofractionated stereotactic radiotherapy on the basis of three-dimensional dose distributions of the lung, shown in two-dimensional graphs, the dose-volume-histograms: With higher radiation doses and larger volumes covered by higher doses the risk increased significantly. There was no relation between the maximum dose at the hilus/bronchial stem and the big pulmonary vessels, respectively, and the development of radiation pneumonitis and/or the level of leuco- and lymphopenia. There was also no relation between these cell counts and the development of pneumonitis. Patients with anemia showed an about ten-fold higher risk for the development of a local recurrence in comparison to patients without anemia.
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It was possible to estimate the risk of a moderate radiation induced pneumonitis (CTC °I-II) in 70 NSCLC patients treated with hypofractionated stereotactic radiotherapy on the basis of three-dimensional dose distributions of the lung, shown in two-dimensional graphs, the dose-volume-histograms: With higher radiation doses and larger volumes covered by higher doses the risk increased significantly. There was no relation between the maximum dose at the hilus/bronchial stem and the big pulmonary v...
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