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- W4362665262 abstract "Abstract Objectives This study aimed to develop and validate radiomics models on the basis of computed tomography (CT) and clinical features for the prediction of pulmonary metastases (MT) in patients with Ewing sarcoma (ES) within 2 years after diagnosis. Materials and Methods A total of 143 patients with a histopathological diagnosis of ES were enrolled in this study (114 in the training cohort and 29 in the validation cohort). The regions of interest (ROIs) were handcrafted along the boundary of each tumor on the CT and CT-enhanced (CTE) images, and radiomic features were extracted. Six different models were built, including three radiomics models (CT, CTE and ComB models) and three clinical-radiomics models (CT_clinical, CTE_clinical and ComB_clinical models). The area under the receiver operating characteristic curve (AUC), and accuracy were calculated to evaluate the different models, and DeLong test was used to compare the AUCs of the models. Results Among the clinical risk factors, the therapeutic method had significant differences between the MT and non-MT groups ( P ＜0.01). The six models performed well in predicting pulmonary metastases in patients with ES, and the ComB model (AUC: 0.866/0.852 in training/validation cohort) achieved the highest AUC among the six models. However, no statistically significant difference was observed between the AUC of the models. Conclusions In patients with ES, clinical-radiomics model created using radiomics signature and clinical features provided favorable ability and accuracy for pulmonary metastases prediction." @default.
- W4362665262 created "2023-04-07" @default.
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- W4362665262 date "2023-04-06" @default.
- W4362665262 modified "2023-10-10" @default.
- W4362665262 title "Radiomics analysis based on CT for the prediction of pulmonary metastases in Ewing sarcoma" @default.
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- W4362665262 doi "https://doi.org/10.21203/rs.3.rs-2766916/v1" @default.
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