在不确定的地面真相下,评估皮肤病学中的医疗AI系统
David Stutz1, Ali Taylan Cemgil1, Abhijit Guha Roy2
1Google DeepMind, United Kingdom.
Medical image analysis
|April 13, 2025
概括
医疗人工智能评估往往忽略了专家的分歧和诊断的不确定性. 这项研究提出了一种新的方法来解释基本真相不确定性,为医疗人工智能系统提供更现实的AI性能估计和风险评估.
科学领域:
- 人工智能在医学中的应用
- 医疗信息学 医疗信息学
- 机器学习评估 机器学习评估
背景情况:
- 医疗人工智能系统需要严格的安全评估,通常与固定的基本真理相对应.
- 在医学诊断中,基本真相通常来自多个专家差异诊断,引入固有的不确定性和潜在的分歧.
- 当前的人工智能评估方法将差异诊断汇总到一个单一的标签上,忽略了这一关键的不确定性.
研究的目的:
- 解决人工智能表现的高估和低估风险,这是由于忽视了医疗人工智能的基准真相不确定性造成的.
- 开发一种统计方法,考虑到专家之间的分歧和个体诊断的不确定性.
- 为医疗人工智能系统提供更准确,更细致的性能指标.
主要方法:
- 提出了一种统计聚合方法,根据专家注释推断医学条件的概率分布.
- 开发了一种方法来生成多个医学状况概率样本,以捕捉基本真相不确定性.
- 评估和平均性能指标,如top-k精度和平均重叠,使用这些采样概率而不是单点估计.
主要成果:
- 证明忽视不确定性导致过于乐观的AI性能估计,并低估了相关风险.
- 在皮肤状况分类数据集中展示了显著的基本真相不确定性,揭示了标准方法的性能高估.
- 突出指出,点估计无法捕捉个案间不确定性的变化.
结论:
- 标准的AI评估方法假定固定的基本真理是医疗诊断不够的.
- 一个细微的评估协议,承认差异诊断的复杂性和可变性是医疗AI必不可少的.
- 拟议的不确定性意识方法提供了对医疗AI性能和相关风险的更现实的评估.
更多相关视频
04:09Predicting Treatment Response to Image-Guided Therapies Using Machine Learning: An Example for Trans-Arterial Treatment of Hepatocellular Carcinoma
Published on: October 10, 2018
8.2K
08:20Author Spotlight: AI-Driven Trypanosome Species Detection from Microscopic Images
Published on: October 27, 2023
1.3K
相关概念视频
Issues And Trends In Healthcare Delivery System
5.5K
The issues and trends in healthcare delivery are constantly changing. The COVID-19 pandemic is one recent issue that wreaked havoc on healthcare systems, causing a shortage of healthcare workers, high demand for medicines and supplies, and increased medical expenditure due to a lack of insurance. Other issues include rising healthcare costs and care fragmentation.
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
5.5K
Skin Cancer
2.9K
Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
2.9K
