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Τρίτη 29 Μαΐου 2018

MR-guided gated stereotactic radiotherapy delivery for lung, adrenal and pancreatic tumors: a geometric analysis

Tumor and organ motion poses a challenge to accurate delivery of stereotactic body radiotherapy (SBRT). We implemented MR-guided, breath-hold SBRT using visual feedback, in order to treat smaller target volumes. The accuracy of gated delivery and reproducibility of the positions of lung-, adrenal- and pancreatic tumors were studied using images acquired during treatment. Analysis of data from 15 patients (87 fractions) revealed 95% geometric GTV coverage in all cases.

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