Abstract
Radiomics has been a promising imaging biomarker for many malignant diseases. We developed a novel radiomics strategy that incorporating radiomics features extracted from dual-view mammograms and clinical parameters for identifying benign and malignant breast lesions, and validated whether the radiomics assessment could improve the accurate diagnosis of breast cancer. A total of 380 patients (mean age, 52 ± 7 years) with 621 breast lesions utilizing mammograms on craniocaudal (CC) and mediolateral oblique (MLO) views were randomly allocated into the training (n = 486) and testing (n = 135) sets in this retrospective study. A total of 1184 and 2368 radiomics features were extracted from single-position region of interest (ROI) and position-paired ROI, separately. Clinical parameters were then combined for better prediction. Recursive feature elimination and least absolute shrinkage and selection operator methods were applied to select optimal predictive features. Random forest was used to conduct the predictive model. Intraclass correlation coefficient test was used to assess repeatability and reproducibility of features. After preprocessing, 467 radiomics features and clinical parameters remained in the single-view and dual-view models. The performance and significance of models were quantified by the area under the curve (AUC), sensitivity, specificity, and accuracy. The correlation analysis between variables was evaluated using the correlation ratio and Pearson correlation coefficient. The model using a combination of dual-view radiomics and clinical parameters achieved a favorable performance (AUC: 0.804, 95% CI: 0.668–0.916), outperformed single-view model and model without clinical parameters. Incorporating with radiomics features of dual-view (CC&MLO) mammogram, age, breast density, and type of suspicious lesions can provide a noninvasive approach to evaluate the malignancy of breast lesions and facilitate clinical decision-making.
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The data and codes are available from the corresponding author upon reasonable request.
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Acknowledgements
The authors acknowledge the support in providing advice and guidance from Dr. Baiyun Liu and Mrs. Jiangfen Wu.
Funding
This research was supported in part through the Scientific Research Project of Jiangsu Maternal and Child Health Association, Grant Number FYX202020 and a grant from the Science Innovation Fund Project from the People's Hospital of SND, Grant Number SGY2021A05.
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C.Z. and Y.W. conceptulized the idea; C.Z. and Y.W. contributed to the methodology; C.Z. and Y.Y. were responsible for validation, formal analysis and visualization; C.Z., H.X and F.Z. were responsible for data curation; C.Z. wrote the draft; C.Z. and W.Y. reviewed paper and provided comments; Y.W. was responsible for supervision, project administration and funding acquisition. All authors have read and agreed to the published version of the manuscript.
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The study was performed in line with the Declaration of Helsinki, and approved by the Institutional Review Board of the People’s Hospital of SND (protocol code was [2021] No.004 and data of approval was February 23, 2021). Patient consent was waived due to the nature of this retrospective study.
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Zhou, C., Xie, H., Zhu, F. et al. Improving the malignancy prediction of breast cancer based on the integration of radiomics features from dual-view mammography and clinical parameters. Clin Exp Med 23, 2357–2368 (2023). https://doi.org/10.1007/s10238-022-00944-8
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DOI: https://doi.org/10.1007/s10238-022-00944-8