Modified Risk Formulation for Improving the Prediction of Knee Osteoarthritis Progression

• URL: http://arxiv.org/abs/2406.10119v1
• Date: Fri, 14 Jun 2024 15:24:49 GMT
• Title: Modified Risk Formulation for Improving the Prediction of Knee Osteoarthritis Progression
• Authors: Haresh Rengaraj Rajamohan, Richard Kijowski, Kyunghyun Cho, Cem M. Deniz,
• Abstract summary: Current methods for predicting osteoarthritis (OA) outcomes do not incorporate disease specific prior knowledge. We developed a novel approach that effectively uses consecutive imaging studies to improve OA outcome predictions.
• Score: 36.12790384412525
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Current methods for predicting osteoarthritis (OA) outcomes do not incorporate disease specific prior knowledge to improve the outcome prediction models. We developed a novel approach that effectively uses consecutive imaging studies to improve OA outcome predictions by incorporating an OA severity constraint. This constraint ensures that the risk of OA for a knee should either increase or remain the same over time. DL models were trained to predict TKR within multiple time periods (1 year, 2 years, and 4 years) using knee radiographs and MRI scans. Models with and without the risk constraint were evaluated using the area under the receiver operator curve (AUROC) and the area under the precision recall curve (AUPRC) analysis. The novel RiskFORM2 method, leveraging a dual model risk constraint architecture, demonstrated superior performance, yielding an AUROC of 0.87 and AUPRC of 0.47 for 1 year TKR prediction on the OAI radiograph test set, a marked improvement over the 0.79 AUROC and 0.34 AUPRC of the baseline approach. The performance advantage extended to longer followup periods, with RiskFORM2 maintaining a high AUROC of 0.86 and AUPRC of 0.75 in predicting TKR within 4 years. Additionally, when generalizing to the external MOST radiograph test set, RiskFORM2 generalized better with an AUROC of 0.77 and AUPRC of 0.25 for 1 year predictions, which was higher than the 0.71 AUROC and 0.19 AUPRC of the baseline approach. In the MRI test sets, similar patterns emerged, with RiskFORM2 outperforming the baseline approach consistently. However, RiskFORM1 exhibited the highest AUROC of 0.86 and AUPRC of 0.72 for 4 year predictions on the OAI set.

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