基于Deeplabv3+算法的人工智能模型辅助临床念珠菌快速精准分类研究

Research on an artificial intelligence model based on the Deeplabv3+ algorithm for assisting clinical rapid and accurate classification of Candida

  • 摘要: 目的:本研究基于Deeplabv3+的人工智能(AI)模型,高效、准确鉴别念珠菌显色图像,实现快速诊断。方法:选取167株临床常见念珠菌,经显色培养后采集1 020张图像用于Deeplabv3+模型的构建与性能验证。结果:AI对白念珠菌识别的准确率为91.00%、热带念珠菌为94.00%、光滑念珠菌为86.00%,平均识别准确率可达90.33%;同时选取3名经验丰富临床技师进行测试,人眼平均识别准确率为89.33%,较AI识别准确率差异无统计学意义(χ2=0.14,P>0.05)。在识别速度上,AI识别的平均速度为(1.88±0.04)s/张,人眼图像识别的平均速度为(1.93±0.33)s/张,两组比较差异无统计学意义(U=0.45,P>0.05),但AI识图较人眼识别更稳定,并且可以批量处理数据以及不受多维因素影响。结论:本研究基于Deeplabv3+算法构建的AI模型,对念珠菌显色培养基图像具有高效、准确鉴定能力,具有良好的推广前景。

     

    Abstract: Objective: To efficiently and accurately identify chromogenic images of Candida and thereby achieve rapid diagnosis, this study adopts an artificial intelligence(AI) model based on the Deeplabv3+ algorithm. Methods: A total of 167 strains of clinically common Candida were selected, and 1,020 images were collected after chromogenic culture for the construction and performance verification of the Deeplabv3+ model. Results: The test results showed that the AI achieved an identification accuracy of 91.00% for Candida albicans, 94.00% for Candida tropicalis, and 86.00% for Candida glabrata, with an average identification accuracy of 90.33% across the three species. To further verify the performance of the AI technology, three experienced clinical laboratory technicians were selected for simultaneous visual identification testing, and their average identification accuracy was 89.33%. Statistical analysis indicated no significant difference between the AI's identification accuracy and that of human eyes(χ2=0.14, P>0.05). In terms of recognition speed, the average speed of AI recognition was 1.88±0.04 seconds per image, while that of human eye image recognition was 1.93±0.33 seconds per image. No statistically significant difference was observed between the two groups(U=0.45, P>0.05). However, AI image recognition exhibited greater stability than human eye recognition. Additionally, it enabled batch data processing without being affected by multiple interfering factors. Conclusion: The AI model constructed based on the Deeplabv3+ algorithm in this study exhibits efficient and accurate identification capabilities for chromogenic medium images of Candida, demonstrating promising prospects for promotion.

     

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