Publications by authors named "S Querellou"

Purpose: Radiomics-based machine learning (ML) models of amino acid positron emission tomography (PET) images have shown efficiency in glioma prediction tasks. However, their clinical impact on physician interpretation remains limited. This study investigated whether an explainable radiomics model modifies nuclear physicians' assessment of glioma aggressiveness at diagnosis.

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Purpose: The accuracy of target delineation in radiation treatment planning of high-grade gliomas (HGGs) is crucial to achieve high tumor control, while minimizing treatment-related toxicity. Magnetic resonance imaging (MRI) represents the standard imaging modality for delineation of gliomas with inherent limitations in accurately determining the microscopic extent of tumors. The purpose of this study was to assess the survival impact of multi-observer delineation variability of multiparametric MRI (mpMRI) and [F]-FET PET/CT.

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In lung cancer patients, radiotherapy is associated with a increased risk of local relapse (LR) when compared with surgery but with a preferable toxicity profile. The KEAP1/NFE2L2 mutational status (Mut) is significantly correlated with LR in patients treated with radiotherapy but is rarely available. Prediction of Mut with noninvasive modalities could help to further personalize each therapeutic strategy.

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Article Synopsis
  • A man with advanced lung adenocarcinoma was treated with erlotinib for 4 years and then received stereotactic radiotherapy for a brain metastasis.
  • After 14 months, local relapse of the metastasis was suspected and confirmed via 18 F-DOPA PET, leading to a second round of radiotherapy.
  • Due to ongoing discrepancies between MRI and PET results, the treatment shifted from erlotinib to osimertinib instead of opting for surgery.
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