Abstract
Purpose
This study aimed to investigate the clinical usefulness of the enhanced-T1WI-based deep learning radiomics model (DLRM) in differentiating low- and high-grade meningiomas.
Methods
A total of 132 patients with pathologically confirmed meningiomas were consecutively enrolled (105 in the training cohort and 27 in the test cohort). Radiomics features and deep learning features were extracted from T1 weighted images (T1WI) (both axial and sagittal) and the maximum slice of the axial tumor lesion, respectively. Then, the synthetic minority oversampling technique (SMOTE) was utilized to balance the sample numbers. The optimal discriminative features were selected for model building. LightGBM algorithm was used to develop DLRM by a combination of radiomics features and deep learning features. For comparison, a radiomics model (RM) and a deep learning model (DLM) were constructed using a similar method as well. Differentiating efficacy was determined by using the receiver operating characteristic (ROC) analysis.
Results
A total of 15 features were selected to construct the DLRM with SMOTE, which showed good discrimination performance in both the training and test cohorts. The DLRM outperformed RM and DLM for differentiating low- and high-grade meningiomas (training AUC: 0.988 vs. 0.980 vs. 0.892; test AUC: 0.935 vs. 0.918 vs. 0.718). The accuracy, sensitivity, and specificity of the DLRM with SMOTE were 0.926, 0.900, and 0.924 in the test cohort, respectively.
Conclusion
The DLRM with SMOTE based on enhanced T1WI images has favorable performance for noninvasively individualized prediction of meningioma grades, which exhibited favorable clinical usefulness superior over the radiomics features.
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Availability of data and material
Research data are not available for public access due to patient privacy concerns but can be obtained from the corresponding author on reasonable request approved by the institutional review boards of all participating institutions.
Code availability
Not applicable.
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Acknowledgments
The authors would like to especially thank Professor Thelma R. Gower for her assistance with the preparation of this manuscript.
Funding
This paper is supported by the Haiyan Funding [grant number JJQN2019-23 to LY]. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
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Substantial contributions to the conception of the work: Liping Yang, Panpan Xu, Ying Zhang, and Tianzuo Wang. Substantial contributions to the acquisition of data: all authors. Substantial contributions to the analysis of data: Liping Yang, Panpan Xu, Ying Zhang, Nan Cui, Menglu Wang, Mengye Peng, Chao Gao, and Tianzuo Wang. Substantial contributions to interpretation of data for the work: Liping Yang, Panpan Xu, Ying Zhang, Nan Cui, Menglu Wang, Mengye Peng, Chao Gao, and Tianzuo Wang. Drafting the work or revising it critically for important intellectual content: all authors. Final approval of the version to be published: all authors.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee of the Harbin Medical University Cancer Hospital.
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Yang, L., Xu, P., Zhang, Y. et al. A deep learning radiomics model may help to improve the prediction performance of preoperative grading in meningioma. Neuroradiology 64, 1373–1382 (2022). https://doi.org/10.1007/s00234-022-02894-0
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DOI: https://doi.org/10.1007/s00234-022-02894-0