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    Using CBCT to Monitor Treatment Dose Delivery Accuracy in Head and Neck Proton Radiotherapy

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    Author
    Sabouri, P.
    Andersson, S.
    Nilsson, R.
    Eriksson, K.
    Mossahebi, S.
    Date
    2021-11
    Journal
    International Journal of Radiation Oncology - Biology - Physics
    Publisher
    Elsevier
    Type
    Abstract
    
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    See at
    https://doi.org/10.1016/j.ijrobp.2021.07.608
    Abstract
    In comparison with photon radiotherapy, intensity modulated proton therapy (IMPT) has higher sensitivities to anatomical and geometrical changes. In IMPT, variations in tumor size, patient geometry and setup can compromise target coverage or augment dose to nearby organs at risk (OAR). As a result, weekly quality assurance CT scans (QACTs) are commonly used to monitor treatment accuracy and provide indicators for adaptive radiotherapy (ART). This study presents the validation of a tool that applies deformable image registration and image processing techniques to generate accurate noise-free CBCT-based virtual CTs used for proton dose calculation to monitor treatment accuracy in head and neck (HN) patients.
    Rights/Terms
    Copyright © 2021 Published by Elsevier Inc.
    Identifier to cite or link to this item
    http://hdl.handle.net/10713/18477
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.ijrobp.2021.07.608
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