Efficient AI-Driven Multi-Section Whole Slide Image Analysis for Biochemical Recurrence Prediction in Prostate Cancer

• URL: http://arxiv.org/abs/2603.20273v1
• Date: Tue, 17 Mar 2026 07:58:02 GMT
• Title: Efficient AI-Driven Multi-Section Whole Slide Image Analysis for Biochemical Recurrence Prediction in Prostate Cancer
• Abstract summary: We propose a novel AI framework that processes a series of multi-section slides to capture the comprehensive tumor landscape across the entire prostate gland.<n>The proposed framework demonstrated strong predictive performance for 1- and 2-year biochemical recurrence prediction.<n>The AI-derived risk score was validated as the most potent independent prognostic factor in a multivariable Cox proportional hazards analysis.
• Score: 2.9768665714719247
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Prostate cancer is one of the most frequently diagnosed malignancies in men worldwide. However, precise prediction of biochemical recurrence (BCR) after radical prostatectomy remains challenging due to the multifocality of tumors distributed throughout the prostate gland. In this paper, we propose a novel AI framework that simultaneously processes a series of multi-section pathology slides to capture the comprehensive tumor landscape across the entire prostate gland. To develop this predictive AI model, we curated a large-scale dataset of 23,451 slides from 789 patients. The proposed framework demonstrated strong predictive performance for 1- and 2-year BCR prediction, substantially outperforming established clinical benchmarks. The AI-derived risk score was validated as the most potent independent prognostic factor in a multivariable Cox proportional hazards analysis, surpassing conventional clinical markers such as pre-operative PSA and Gleason score. Furthermore, we demonstrated that integrating patch and slide sub-sampling strategies significantly reduces computational cost during both training and inference without compromising predictive performance, and generalizability of AI was confirmed through external validation. Collectively, these results highlight the clinical feasibility and prognostic value of the proposed AI-based multi-section slide analysis as a scalable tool for post-operative management in prostate cancer.

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