肺叶细分:与本地内部模型相比,开源MOOSE,TotalSegmentator和LungMask模型的性能
Elaheh Amini1, Ran Klein2,3,4
1Systems and Computer Engineering, Carleton University, Ottawa, ON, Canada. eamini@ohri.ca.
European radiology experimental
|September 4, 2025
概括
对于肺叶细分的深度学习模型在常见病例上表现良好, 用多样化,代表性的数据集进行培训可以提高准确性,特别是在具有挑战性的肺部疾病中.
科学领域:
- 医学成像
- 医学的人工智能
- 胸部手术
背景情况:
- 精确的肺叶细分对于在手术前使用核成像来评估肺叶功能至关重要.
- 对肺叶细分的开源深度学习工具的性能评估对于临床应用至关重要.
研究的目的:
- 将开源肺叶细分工具的性能与定制训练模型进行比较.
- 评估深度学习模型在不同难度级别的肺叶细分方面的概括性和局限性.
主要方法:
- 收集和半自动分类164个计算机断层扫描 (CT) 扫描,并根据任务难度进行分类.
- 评估了三种开源模型 (MOOSE,TotalSegmentator,LungMask) 和使用子相似系数 (DSC),rH d95和NSD进行定制训练的nnU-Net模型.
- 在外部数据集上评估模型的概括性 (LOLA11).
主要成果:
- 在DSC和NSD方面,TotalSegmentator的表现优于MOOSE,同时在所有指标上都超过了LungMask.
- 经过定制训练的nnU-Net模型在所有难度级别的内部和外部数据集上都实现了卓越的性能.
- 在复杂的病例中,定制模型和LungMask在识别缺失的叶片方面最有效.
结论:
- 开源细分工具对于简单的病例是有效的, 但对于复杂或不熟悉的肺异常,
- 在不同的代表性数据集上训练深度学习模型可以在具有挑战性的场景中提高概括性和性能.
- 数据的多样性比数据的数量更为重要,
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