精确的完全自动评估左心室,左心房和左心房附属部分功能从计算机断层扫描使用深度学习
Lee Jollans1,2, Mariana Bustamante1,3, Lilian Henriksson1,2,4
1Center for Medical Image Science and Visualization, Linköping University, SE-581 83 Linköping, Sweden.
European heart journal. Imaging methods and practice
|March 7, 2025
概括
深度学习模型从CT扫描中准确计算心脏功能. nnU-Net在细分心脏结构和估计诸如弹射率之类的参数方面表现出卓越的性能.
科学领域:
- 医疗成像医学成像
- 人工智能的人工智能
- 心血管疾病 心血管疾病
背景情况:
- 心脏功能评估对于心血管疾病的诊断和治疗至关重要.
- 精确计算中风体积 (SV) 和射出分数 (EF) 取决于成像衍生体积.
- 计算机断层扫描 (CT) 提供了详细的心脏成像的潜力.
研究的目的:
- 开发一种全自动的深度学习方法,从CT数据计算心脏功能参数.
- 评估不同深度学习模型在细分心脏结构和估计功能的性能.
主要方法:
- 利用39名患者的时间解析CT数据集.
- 使用nnU-Net,3D TransUNet和UNETR.使用左心室 (LV),左心房 (LA) 和左心房附属体 (LAA) 的训练分段模型.
- 使用子相似性得分 (DSS) 和函数参数的类内相关性 (ICC) 进行模型性能比较.
主要成果:
- nnU-Net和3D TransUNet在心脏结构细分方面获得了高的子相似度得分 (分别为0.91和0.89).
- nnU-Net和3D TransUNet都准确地估计了高ICC值的LV和LA功能参数 (SV,EF).
- nnU-Net显示了LAA功能 (LAAEF) 的优异预测,而UNETR表现不佳.
- 与nnU-Net相比,3D TransUNet提供了更快的训练和推断时间.
结论:
- nnU-Net在CT的心脏功能计算方面表现出优于视觉变压器架构的性能.
- 基于CT的完全自动深度学习的心脏功能评估既快速又可靠.
- 这项研究强调了人工智能在改善心血管诊断方面的潜力.
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