ArticlemedRxiv : the preprint server for health sciences2025
End-to-end prediction of clinical outcomes in head and neck squamous cell carcinoma with foundation model-based multiple instance learning.
Article in medRxiv : the preprint server for health sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Foundation models (FMs) show promise in medical AI by learning flexible features from large datasets, potentially surpassing handcrafted radiomics. Outcome prediction of head and neck squamous cell carcinomas (HNSCC) with FMs using routine imaging remains unexplored. Purpose: To evaluate end-to-end FM-based multiple instance learning (MIL) for 2-year overall survival (OS), locoregional control (LRC), and freedom from distant metastasis (FFDM) prediction and risk group stratification using pretreatment CT scans in HNSCC. Materials and Methods: We analyzed data of 2485 patients from three retrospective HNSCC cohorts (RADCURE, HN1, HN-PET-CT), treated between 2004 and 2017 with available pre-treatment CTs and primary gross tumor volume (GTVp) segmentations. The RADCURE cohort was split into training (n=1464) and test (N=606), with HN1 (n=131) and HN-PET-CT (n=284) as additional test cohorts. FM-based MIL models (2D, multiview and 3D) for 2-year endpoint prediction and risk stratification wre evaluated based on area under the receiver operator curve (AUROC) and Kaplan-Meier (KM) with hazard ratios (HR), compared with radiomics and assessed for multimodal enhancement with clinical baselines. Results: 2D MIL models achieved 2-year test AUROCs of 0.75-0.84 (OS), 0.66-0.75 (LRC) and 0.71-0.78 (FFDM), outperforming multiview and 3D MIL (AUROCs: 0.50-0.77, p≥0.15) and comparable or superior to radiomics (AUROCs: 0.64-0.74, p≥0.012). Significant stratification was observed (HRs: 2.14-4.77, p≤0.039). Multimodal enhancement of 2-year OS/FFDM (AUROCs: 0.82-0.87, p≤0.018) was observed for patients without human papilloma virus positive (HPV+) tumors. Conclusion: FM-based MIL demonstrates promise in HNSCC risk prediction, showing similar or superior performance to radiomics and enhancing clinical baselines in non-HPV+ patients.
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