Abstract
Objective
To explore whether radiomics features extracted from pre-treatment magnetic resonance imaging (MRI) can predict the overall survival (OS) in patients with hypopharyngeal squamous cell carcinoma.
Methods
A total of 190 patients with hypopharyngeal squamous cell carcinoma were eligibly enrolled from two institutions. Radiomics features were extracted from contrast-enhanced axial T1-weighted (CE-T1WI) sequence. The least absolute shrinkage selection operator (LASSO) algorithm was applied to establish a radiomics score correlated with OS. Multivariate logistic regression analysis was applied to determine the independent risk factors, which was combined with radiomics score to build the final radiomics nomogram.
Results
A radiomics score with 6 CE-T1WI features for OS prediction was constructed and validated; its integration with specific clinicopathologic factors (N stage) showed a better prediction performance in the training, internal validation, and external validation cohorts (C-index 0.78, 0.75, and 0.75). Calibration curves determined a good agreement between the predicted and actual overall survival.
Conclusions
The radiomics-clinical nomogram and radiomics score might be non-invasive and reliable methods for the risk stratification in patients with hypopharyngeal squamous cell carcinoma.
Key Points
• An MRI-based radiomics model was constructed to evaluate of OS in patients with hypopharyngeal squamous cell carcinoma.
• A radiomics-clinical nomogram that combined radiomics features and clinical characteristics was established.
• Multi-cohort study validated the predictive performance of the radiomics-clinical nomogram to stratify patients with high risk in clinical practice.
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Abbreviations
- CE-T1WI:
-
Contrast-enhanced T1-weighted sequence
- C-index:
-
Harrell’s concordance index
- CT:
-
Computed tomography
- HNC:
-
Head and neck cancer
- LASSO:
-
The least absolute shrinkage and selection operator
- LMR:
-
Lymphocyte-to-monocyte ratio
- MRI:
-
Magnetic resonance imaging
- NLR:
-
Neutrophil-to-lymphocyte ratio
- OS:
-
Overall survival
- PACS:
-
Picture Archiving and Communication System
- PLR:
-
Platelet-to-lymphocyte ratio
- ROI:
-
Region of interest
- TNM:
-
The Tumor, Node, Metastasis staging system
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Acknowledgements
This study was supported by the National Natural Science Foundation of China (Nos. 82073009, 81974424, 81874133, 81773243, 81772903 and 81602684), the National Key Research and Development Program of China (2020YFC1316900, 2020YFC1316901), the Natural Science Foundation of Hunan Province (Nos. 2019JJ40481, 2019JJ50944, 2018JJ2630 and 2017JJ3488), the Huxiang Young Talent Project (No. 2018RS3024) and Young Scientist Research Fund of **angya Hospital (No. 2018Q019).
Funding
This study was supported by the National Natural Science Foundation of China (Nos. 82073009, 81974424, 81874133, 81773243, 81772903 and 81602684), the National Key Research and Development Program of China (2020YFC1316900, 2020YFC1316901), the Natural Science Foundation of Hunan Province (Nos. 2019JJ40481, 2019JJ50944, 2018JJ2630 and 2017JJ3488), the Huxiang Young Talent Project (No. 2018RS3024) and Young Scientist Research Fund of **angya Hospital (No. 2018Q019).
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The guarantor of this publication is Yuanzheng Qiu.
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One of the authors (Yan Gao) has significant statistical expertise.
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Methodology
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retrospective
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diagnostic or prognostic study
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performed at multiple institution
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Chen, J., Lu, S., Mao, Y. et al. An MRI-based radiomics-clinical nomogram for the overall survival prediction in patients with hypopharyngeal squamous cell carcinoma: a multi-cohort study. Eur Radiol 32, 1548–1557 (2022). https://doi.org/10.1007/s00330-021-08292-z
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DOI: https://doi.org/10.1007/s00330-021-08292-z