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Purpose Tumor motion is a major problem in stereotactic ablative body radiotherapy for non-small cell lung cancer with a disproportionate irradiation response that compensates for this motion. This research was designed to investigate the risks and benefits of MR-Linac in SABR for lung tumor treatment. Overall, 41 patients with NSCLC treated with SABR using MR-Linac between March 2019 and December 2021 were included, with 41 patients with NSCLC treated with SABR using MR-Linac between March 2019 and December 2021. For comparison, 40 patients treated with SABR using computed tomography-based modalities were also enrolled. There was no significant difference in the MR and CT groups' gross tumor volume, but in the MR group, the planning target volume was much smaller, but the MR group's volume was much less. Conclusion Lung SABR with MR-Linac can reduce the radiation field without compromising the local control rate.
Source link: https://doi.org/10.1007/s00432-022-04264-y
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Source link: https://doi.org/10.1038/s41597-022-01758-9
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