End-to-end empirical validation of dose accumulation in MRI-guided adaptive radiotherapy for prostate cancer using an anthropomorphic deformable pelvis phantom

•MRgRT prostate treatments for prostate were simulated on a deformable phantom.•Deformable phantom mimicked human anatomy in pelvic region.•Total delivered dose at the OAR surfaces were measured with film dosimetry.•Two DIR-based dose accumulation approaches were evaluated.•A good agreement with mea...

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