Abstract
Purpose
Primary bone and joint sarcomas of the long bone are relatively rare neoplasms with poor prognosis. An efficient clinical tool that can accurately predict patient prognosis is not available. The current study aimed to use deep learning algorithms to develop a prediction model for the prognosis of patients with long bone sarcoma.
Methods
Data of patients with long bone sarcoma in the extremities was collected from the Surveillance, Epidemiology, and End Results Program database from 2004 to 2014. Univariate and multivariate analyses were performed to select possible prediction features. DeepSurv, a deep learning model, was constructed for predicting cancer-specific survival rates. In addition, the classical cox proportional hazards model was established for comparison. The predictive accuracy of our models was assessed using the C-index, Integrated Brier Score, receiver operating characteristic curve, and calibration curve.
Results
Age, tumor extension, histological grade, tumor size, surgery, and distant metastasis were associated with cancer-specific survival in patients with long bone sarcoma. According to loss function values, our models converged successfully and effectively learned the survival data of the training cohort. Based on the C-index, area under the curve, calibration curve, and Integrated Brier Score, the deep learning model was more accurate and flexible in predicting survival rates than the cox proportional hazards model.
Conclusion
A deep learning model for predicting the survival probability of patients with long bone sarcoma was constructed and validated. It is more accurate and flexible in predicting prognosis than the classical CoxPH model.
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Data availability
Publicly available datasets were analyzed in this study. The datasets used and analyzed in the study are available from the corresponding author on reasonable request.
Abbreviations
- C-index:
-
Concordance index
- CSS:
-
Cancer-specific survival
- ROC:
-
Receiver operating characteristic
- AUC:
-
Area under the curve
- SEER:
-
Surveillance, Epidemiology, and End Results
- IBS:
-
Integrated Brier Score
- ML:
-
Machine learning
- CoxPH:
-
Cox proportional hazards
- AI:
-
Artificial intelligence
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Funding
This work was supported by National Natural Science Foundation of China (No. 31971272), Sanming Project of Medicine in Shenzhen (No. SZSM201911011) and International Science and Technology Cooperation Key Program project of Shaanxi Province (No.2023-GHZD-25).
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Data curation, ZM; Formal analysis, DC; Funding acquisition, HF; Investigation, XL, ZZ, JD, DZ; Methodology, DC, DL, ZZ, and JF; Project administration, HF; Resources, DC, ZM; Software, DC and WT; Supervision, HF; Validation, DL and XL; Visualization, HF; Writing–original draft, DC; Writing–review & editing, HF.
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Because the SEER database is a publicly available database of de-identified patient data, no ethics committee review was required for its use in this project.
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Cheng, D., Liu, D., Li, X. et al. A deep learning model for accurately predicting cancer-specific survival in patients with primary bone sarcoma of the extremity: a population-based study. Clin Transl Oncol 26, 709–719 (2024). https://doi.org/10.1007/s12094-023-03291-6
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DOI: https://doi.org/10.1007/s12094-023-03291-6