评估人工智能细分模型的稳定性,用于跨心脏表现型的定量心血管磁共振成像
Hadil Saad1,2,3, Clemens Ammann1,2,3,4, Thomas Hadler1,2,4
1Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany.
The international journal of cardiovascular imaging
|December 25, 2025
概括
一个人工智能算法,Nick,从心血管磁共振扫描中准确量化心脏功能和T1/T2映射. 它在临床病例中表现出强的性能,支持整合到常规工作流程中.
科学领域:
- 心血管成像 - 心血管成像
- 人工智能在医学中的应用
- 医学图像分析 医学图像分析
背景情况:
- 心血管磁共振 (CMR) 对于评估心脏功能和组织特征至关重要.
- 用于CMR分析的手动细分是耗时的,并且受观察者之间的变化影响.
- 需要自动化细分工具来提高临床实践的效率和一致性.
研究的目的:
- 介绍和评估Nick,一个基于人工智能的算法,用于自动化CMR细分.
- 评估尼克在量化左和右心室功能和参数映射 (T1/T2放松时间) 中的准确性.
- 为了验证尼克在多中心环境中跨多种心脏表现型的表现.
主要方法:
- 在359个多中心CMR病例 (1.5T和3T) 中,Nick与手动黄金标准 (GS) 分段进行了比较.
- 该数据集包括104名健康个人和255名患有各种心脏病理的患者.
- 分析包括对心室体积的量化,LV质量,射出分数和T1/T2映射值的量化,使用像布兰德-阿尔特曼分析这样的统计比较.
主要成果:
- 尼克在心室体积 (R2≥0.93) 和LV质量 (R2=0.86) 方面与GS表现出高度一致.
- 射出分数相关性是R2=0.85 (LV) 和R2=0.72 (RV),平均差异很小.
- T1和T2映射显示出极好的一致性 (R2≥0.92),偏差最小,所有指标的临床可接受偏差.
结论:
- 人工智能算法Nick在为常规临床应用细分CMR图像方面表现出强的性能.
- 尼克提供了对心脏功能的准确量化和对各种病理的参数映射.
- 这些发现支持将Nick纳入临床工作流程以进行高效的CMR分析.
相关概念视频
Imaging Studies for Cardiovascular System IV: CMRI
293
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
293
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
362
Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
362


