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心力衰竭中的二对八区肺部超声波:使用深度学习算法分析大量数据集
Cristiana Baloescu1, Alvin Chen2, Alexander Varasteh1,3
1Department of Emergency Medicine, Yale University School of Medicine, New Haven, Connecticut, 06519, USA.
概括
一个简化的2区肺超声波协议有效地检测心力衰竭患者的B线人造物,与标准的8区方法的准确性相匹配. 这一发现支持更有效的临床使用肺超声波来诊断心力衰竭.
科学领域:
- 医疗成像医学成像
- 心脏病学 心脏病学
- 肺部病理学 肺部病理学
背景情况:
- 肺部超声波 (LUS) 对于诊断心力衰竭至关重要.
- 标准LUS协议使用8个或更多的区域,可能会限制临床效率.
- 深度学习 (DL) 算法可以分析LUS的B线文物.
研究的目的:
- 为了比较一个简化的2区LUS协议与标准的8区协议.
- 为了评估DL算法的有效性,在不同的LUS协议中评估B线严重性.
- 为了确定二区协议是否足以进行心力衰竭评估.
主要方法:
- 对怀疑心力衰竭的成年患者进行前性观察性研究.
- 每日LUS使用8区协议和手持式超声波系统.
- 一个DL算法适应视频循环的B线严重性 (0-4级) 评分.
- 布兰德-阿尔特曼分析用于比较2区和8区DL衍生的严重性得分.
主要成果:
- 在布兰德-阿尔特曼分析中,两区和八区协议之间有很好的一致性.
- 在这两种方案之间,B线平均严重性得分没有显著差异.
- 主要数据集 (n=205) 的平均差异为0.03;子组 (n=147) 的平均差异为0.01.
结论:
- 一个2区前上胸部超声波协议提供可比较的B线严重性信息,以一个8区的方法.
- 这种简化方案可以提高肺超声波在心力衰竭管理中的临床效用.
- 具有2区协议的DL辅助LUS提供了一个高效的诊断工具.
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Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
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Auscultation is the process of listening to these internal body sounds using a stethoscope. The heart produces four types of sounds, but only two—S1 and S2—can usually be heard with a stethoscope.
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