在低成本,查CT分检查中,机会主义自动化大动脉结石化评估
Research square
|June 12, 2025
概括
一种新的人工智能方法在CT分数扫描上检测出大动脉结石化 (AVC),从而能够早期诊断出大动脉狭窄 (AS). 这种方法可以通过更早地识别有风险的人来显著改善患者的治疗结果和公共卫生.
科学领域:
- 心脏病学 心脏病学
- 人工智能的人工智能
- 医疗成像医学成像
背景情况:
- 大动脉狭窄 (AS) 是一种普遍存在的心脏病,特别是在老年人群中,可能导致心力衰竭.
- 早期发现和治疗AS,包括跨导管大动脉置换 (TAVR),对于管理这种情况至关重要.
- 大动脉结石化 (AVC) 是AS的一个关键指标,但目前的检测方法可能无法普遍获得.
研究的目的:
- 开发和验证一种用于检测AVC的新方法,使用易于获得的,低成本的非对比的CT分数 (CTCS) 查图像.
- 为了解决早期AS检测和患者转诊进一步评估和治疗的未满足的临床需求.
- 利用人工智能进行AVC的自动识别,促进更广泛的查.
主要方法:
- 设计了一个多任务深度学习网络,用于识别CTCS图像中感兴趣的大动脉区域 (ROI).
- 在确定ROI的范围内,Agatston标准被应用来量化化,模拟标准的临床评估.
- 模型的性能通过将其预测的ROI和Agatston分数与心脏病学家的评估进行比较来评估.
主要成果:
- 深度学习模型与心脏病学家在确定大动脉ROI方面表现出强烈的共识.
- 从模型中预测的阿加斯顿分数与心脏病学家 (r=1.00,p=0.573) 确定的分数有很好的相关性.
- 根据指导方针,对2000多名患者的分析显示,AVC发生在男性的20.6%和女性的22.2%中,严重的AS分别在3.53%和9.04%中被发现.
结论:
- 开发的基于人工智能的方法在CTCS扫描上有效地检测到大动脉的化,为早期AS查提供了一个有前途的工具.
- 这种方法有可能对公共卫生产生重大影响,因为它可以更早地对AS进行诊断和干预.
- 需要进一步的验证和临床评估,以将这种方法纳入常规查协议.
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