基于人工智能的动脉输入函数用于心肌磁共振中的心肌动脉血流量和 perfusion 储备的定量评估:一个验证研究
Lara R van der Meulen1,2, Maud van Dinther2,3, Amedeo Chiribiri4
1Department of Radiology and Nuclear Medicine, Maastricht University Medical Centre, 6229 HX Maastricht, The Netherlands.
Diagnostics (Basel, Switzerland)
|September 27, 2025
概括
人工智能动脉输入功能 (AI-AIF) 模型准确量化了应激心肌血流 (MBF),但需要进一步开发,以可靠地评估心脏MRI中的休息MBF和心肌 perfusion reserve (MPR).
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:
- 心肌动脉血流量 (MBF) 的量化对于诊断冠状动脉疾病至关重要.
- 准确的动脉输入功能 (AIF) 估计对于可靠的MBF测量至关重要.
- 深度学习模型为自动化心脏MRI中的AIF估计提供了潜力.
研究的目的:
- 为了验证基于人工智能的动脉输入函数 (AI-AIF) 深度学习模型用于MBF量化.
- 评估AI-AIF模型的休息MBF和心肌输液储备 (MPR) 计算的性能.
- 将AI-AIF衍生MBF和MPR与双序 (DS) AIF方法进行比较.
主要方法:
- 60名患者接受了定量压力和休息心脏MRI输液成像.
- 开发了一个AI-AIF模型 (1-D U-Net) 来从和输入中预测不和的AIF.
- 使用费米函数受约束解卷法量化了MBF;MPR被计算为应力/休息MBF比率.
主要成果:
- 在压力MBF量化方面,AI-AIF模型的性能与DS-AIF的性能相当 (偏差为-0.07mL/g/min).
- 冠状动脉疾病分类对应力MBF高 (>92%).
- 对于休息的MBF (0.12mL/g/min) 和MPR (-0.30) 观察到较大的偏差,一致性较低.
结论:
- AI-AIF模型是心脏MRI中压力MBF量化的一个有希望的工具.
- 需要进一步改进模型,以提高休息MBF和MPR评估的准确性.
- AI-AIF显示了增强自动心脏 perfusion 分析的潜力.
关键词:
动脉输入功能的动脉输入功能.人工智能的人工智能是人工智能.心脏磁共振是一种心脏磁共振.心肌动脉的血液流动.肌肉性心脏 perfusion 储备 肌肉性心脏输液储备定量性心肌 perfusion 的使用方法.更多相关视频
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