在基于人工智能的牙年龄估计中量化跨位点效应:来自巴西全景放射图的证据
Willian Oliveira1, Matheus L Oliveira2, Francisco Haiter Neto2
1Centro de Informática, Universidade Federal de Pernambuco, Av. Jorn. Aníbal Fernandes, s/n Cidade Universitária, Recife, 50740-560, Pernambuco, Brasil.
Dento maxillo facial radiology
|February 19, 2026
概括
人工智能牙科年龄估计模型在跨区域数据方面遇到了困难. 对各种数据和微调的培训提高了准确性,为临床使用提供了强大的基准.
科学领域:
- 人工智能在牙科中的应用
- 医学成像分析 医学成像分析
- 法医人类学 法医人类学
背景情况:
- 牙年龄估计模型在不同地理区域和设备的泛化方面面临挑战.
- 性能差异可能导致临床和法医环境中的年龄预测不准确.
研究的目的:
- 评估基于人工智能的牙科年龄估计模型的跨区域概括性.
- 确定有效的策略来提高模型性能和可靠性.
- 透明地报告与年龄估计相关的不确定性.
主要方法:
- 利用了来自巴西两个不同地区 (东北和东南) 的21,722张全景放射图.
- 在各种培训场景下评估Inception-v4模型:单区域,多区域,微调和数据增强.
- 使用平均绝对误差 (MAE),偏差,R2,布兰德-阿尔特曼分析和校准指标评估性能.
主要成果:
- 当在一个地区训练的模型被应用于另一个地区 (在该地区的MAE为3.10年) 时,出现了显著的性能退化 (MAE4.97年).
- 关于聚合数据的培训与微调增强精度和校准 (MAE 3.24-3.69,R2 0.93-0.95).
- 数据增强提供了轻微的好处,但没有解决重大错误;热图显示了关键的解剖特征.
结论:
- 跨站点和域名的转移极大地影响了AI牙科年龄估计模型的性能.
- 采用光适应的多区域培训产生了强大的,校准的和可解释的结果.
- 这项研究为牙科中可重现的AI模型评估提供了一个基准,代码和协议.
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