用计算机断层扫描创建的合成数据用于X射线骨分割的对抗性强度改进
Wai Yan Ryana Fok1,2, Andreas Fieselmann3, Christian Huemmer3
1Faculty of Computer Science, Otto-von-Guericke-University Magdeburg, 39106, Magdeburg, Germany. wai1.fok@ovgu.de.
Scientific reports
|October 29, 2024
概括
从3DCT数据生成的合成X射线图像提高了人工智能 (AI) 模型的稳定性. 这种方法解决了数据稀缺问题,并提高了临床成像中的患者定位检查等任务的性能.
科学领域:
- 医学成像医学成像
- 人工智能的人工智能是人工智能.
- 深度学习是一种深度学习.
背景情况:
- 临床成像中的深度学习面临着有限的注释数据和对抗性易感性的挑战.
- 对于像患者定位这样的任务,人工智能系统需要平衡的数据集,这些数据集通常是不可用的.
研究的目的:
- 从3DCT卷中生成合成X射线图像和注释面具,以创建现实的,非最佳位置的训练数据.
- 在不平衡的真实世界临床数据上训练的AI模型的强度提高.
主要方法:
- 使用3D光子计数CT卷来转发项目合成X射线图像和注释面具.
- 使用开源的TotalSegmentator模型在3DCT数据中对关节骨进行注释.
- 通过将真实数据训练模型与模拟患者旋转下的真实和合成数据训练模型进行比较来评估模型的稳定性.
主要成果:
- 与仅使用真实数据的模型相比,在真实数据和合成数据上训练的模型在各种模拟的患者旋转角度上显示了3%至15%的子得分改善.
- 合成数据有效地增强了代表性不足的条件,从而提高了模型的稳定性.
结论:
- 合成数据生成是补充医疗AI培训数据集的可行策略.
- 这种方法提高了临床图像分析的深度学习模型的稳定性,特别是在代表性不足的场景中.
相关概念视频
X-ray Imaging
5.4K
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
5.4K
Computed Tomography
4.3K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
4.3K


