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KMID : 0361020220650060334
Korean Journal of Otolaryngology - Head and Neck Surgery
2022 Volume.65 No. 6 p.334 ~ p.342
Machine Learning-Based Predictor for Treatment Outcomes of Patients With Salivary Gland Cancer After Operation
Jeong Min-Cheol

Koh Yoon-Woo
Koh Yoon-Woo
Choi Eun-Chang
Lim Jae-Yol
Kim Se-Heon
Park Young-Min
Abstract
Background and Objectives : The purpose of this study was to analyze the survival data of salivary gland cancer (SGCs) patients to construct machine learning and deep learning mod- els that can predict survival and use them to stratify SGC patients according to risk estimate.

Subjects and Method : We retrospectively analyzed the clinicopathologic data from 460 pa- tients with SGCs from 2006 to 2018.

Results : In Cox proportional hazard (CPH) model, pM, stage, lymphovascular invasion, lymph node ratio, and age exhibited significant correlation with patient¡¯s survival. In the CPH model, the c-index value for the training set was 0.85, and that for the test set was 0.81. In the Random Survival Forest model, the c-index value for the training set was 0.86, and that for the test set was 0.82. Stage and age exhibited high importance in both the Random Survival For- est and CPH models. In the deep learning-based model, the c-index value was 0.72 for the training set and 0.72 for the test set. Among the three models mentioned above, the Random Survival Forest model exhibited the highest performance in predicting the survival of SGC patients.

Conclusion : A survival prediction model using machine learning techniques showed accept- able performance in predicting the survival of SGC patients. Although large-scale clinical and multicenter studies should be conducted to establish more powerful predictive model, we ex- pect that individualized treatment can be realized according to risk stratification made by the machine learning model.
KEYWORD
Deep learning, Machine learning, Prognosis, Salivary gland cancer
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