校准CT切片位置和身体部位在身体部位回归中的身体部位
Dingjie Su1, Thomas Li2,3, Lianrui Zuo4
1Vanderbilt University Department of Computer Science, Nashville, TN 37235, USA.
Proceedings of SPIE--the International Society for Optical Engineering
|December 29, 2025
概括
身体部位回归改善了计算机断层扫描 (CT) 图像导航. 用选择性混合增强微调自主监督模型显著提高了CT扫描中的切片定位精度.
科学领域:
- 医疗成像医学成像
- 计算机视觉 计算机视觉
- 机器学习 机器学习
背景情况:
- 身体部位回归对于计算机断层扫描 (CT) 图像中的内容导航至关重要.
- 目前的自我监督方法假设线性得分变化,但缺乏交叉图像校准,限制了切片定位的准确性.
- 精确的切片定位对于医疗成像中的高效内容导航至关重要.
研究的目的:
- 在线性假设下量化理论最佳切片定位误差.
- 通过将监督学习与自我监督技术相结合,提高CT图像中的切片定位精度.
- 评估一种新的选择性混合数据增强策略的有效性.
主要方法:
- 通过对基准真实性得分的回归量化最佳切片定位错误.
- 嵌入式监督学习使用关键片注释.
- 提出并实施了选择性混合数据增强策略.
- 对照监督,微调和半监督的培训方法.
主要成果:
- 精心调整的模型具有选择性混合,实现了7.4±6.9毫米的切片定位误差.
- 这种性能接近于6.1±6.5毫米的理论最佳误差.
- 提出的方法显著优于其他自我监督和半监督的方法,这些方法的误差超过10毫米.
结论:
- 精细调整的身体部位回归模型与选择性混合增强提供了一个高度准确的方法,用于切片定位在CT图像.
- 这种方法显著提高了医疗成像数据集中的内容导航能力.
- 该模型展示了作为身体CT扫描中精确内容导航的强大工具的潜力.
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