Diagnostic Accuracy of Microsoft's Copilot Artificial Intelligence in Chronic Wound Assessment: A Comparative Study.

Background: Chronic wounds affect approximately 2.5% of the US population and can cause severe complications if not identified and treated promptly. Artificial intelligence tools such as Microsoft's Copilot have the potential to expedite diagnosis, but their clinical diagnostic accuracy remains underexplored.

Methods: Ten chronic wound cases were selected from the publicly available database of the Silesian University of Technology. Images and demographic data were entered into Copilot, which generated the top 3 differential diagnoses for each case. Diagnostic accuracy was evaluated using a predefined scoring system. Statistical analysis included descriptive statistics, the Wilcoxon signed-rank test, bootstrapping, the Fisher-Pitman permutation test, Cohen kappa, and Fisher exact test.

Results: Copilot correctly identified the primary diagnosis in 30% of cases and included the correct diagnosis within its top 3 differentials in 70% of cases. The mean diagnostic score was 1.7 (median: 2, SD: 1.25, variance: 1.57). The Wilcoxon test indicated no significant deviation from the median reference value (P = 0.6364), whereas bootstrapping yielded a 95% confidence interval of 1-4. The permutation test demonstrated a significant difference from the null hypothesis (P = 0.017), and the Cohen kappa revealed perfect agreement (kappa = 1, P = 0.00157). The Fisher exact test showed no significant association between primary and top 3 diagnostic accuracy (P = 0.20).

Conclusions: Microsoft Copilot demonstrated limited diagnostic accuracy in chronic wound assessment, underscoring the need for cautious integration into clinical workflows. Broader datasets and more rigorous validation are crucial for enhancing artificial intelligence-supported diagnostics in wound care.