基于近红外光谱-血管内超声波的新型深度学习方法,用于精确的冠状动脉计算机断层扫描斑块量化和表征
Anantharaman Ramasamy1,2, Hessam Sokooti3, Xiaotong Zhang4
1Department of Cardiology, Barts Heart Centre, Barts Health NHS Trust, West Smithfield, London EC1A 7BE, UK.
European heart journal open
|November 1, 2023
概括
一种新的深度学习 (DL) 方法使用冠状动脉计算机断层扫描血管造影 (CCTA) 和近红外光谱-血管内超声波 (NIRS-IVUS) 准确量化冠状动脉斑块. 这种先进的DL方法超越了用于斑块负担和病变检测的传统分析.
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:
- 与血管内成像相比,冠状动脉计算机断层扫描血管学 (CCTA) 在评估冠状动脉斑块形态和负担方面存在局限性.
- 准确的斑块表征对于冠状动脉疾病的风险分层和治疗决策至关重要.
研究的目的:
- 在CCTA中开发和验证深度学习 (DL) 方法,用于精确的斑块量化和表征.
- 将DL方法的性能与传统的CCTA分析和近红外光谱-血管内超声波 (NIRS-IVUS) 估计进行比较.
主要方法:
- 在138个血管中使用CCTA和NIRS-IVUS成像的匹配横截面训练了一个卷积神经网络.
- 在48个容器中评估了DL模型的性能,将其对斑块负担和病变检测的估计与NIRS-IVUS和专家CCTA分析进行了比较.
- 通过DL方法,在0.3秒内在CCTA上实现了快速船舶细分.
主要成果:
- 与传统的CCTA分析相比,DL方法提供了较为精确的估计,比起传统的CCTA分析 (p < 0.001),对动脉瘤总体体积和动脉瘤体积的百分比更准确 (p < 0.001).
- DL表现出优异的病变检测 (AUC:0.77对比0.67,p<0.001) 和更准确的最小光线面积,最大斑块负担和性负担的量化.
- 在多个定量斑块参数上,DL方法显著优于传统方法.
结论:
- 开发的DL方法允许使用CCTA数据快速准确地评估冠状动脉斑块形态.
- 这种DL方法,与共同注册的NIRS-IVUS和CCTA数据进行训练,优于冠状动脉斑块评估的专家分析师.
- 这些发现表明,在心血管疾病管理的非侵入性斑块表征方面取得了重大进展.
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