一种基于等效时间采样的新方法,用于估计脉冲过境时间,并应用于心血管疾病诊断
Giorgia Fiori1, Fabio Fuiano1, Silvia Conforto1
1Department of Industrial, Electronic and Mechanical Engineering, University of Roma Tre, 00146 Rome, Italy.
Sensors (Basel, Switzerland)
|June 10, 2023
概括
这项研究引入了一种新的图像分析方法,用于估计脉冲过渡时间 (PTT),这是一个关键的心血管健康指数. 这种新技术在不同的血管模拟器中准确地测量了平均流速 (FAV) 和脉冲波速度 (PWV).
科学领域:
- 生物医学工程 生物医学工程
- 心血管生理学心血管生理学
- 医疗成像医学成像
背景情况:
- 心血管疾病 (CVD) 构成了全球健康和经济上的重大负担.
- 脉冲过渡时间 (PTT) 是评估心血管健康和诊断心血管疾病的关键非侵入性指标.
- 准确的PTT估计对于早期发现和管理心血管疾病至关重要.
研究的目的:
- 开发和验证一种基于图像分析的新方法,用于估计脉冲传输时间 (PTT).
- 从彩色多普勒视频中利用等效时间采样进行PTT估计.
- 在不同的实验设置中,评估该方法在测量平均流速 (FAV) 和脉冲波速度 (PWV) 的有效性.
主要方法:
- 使用等效时间采样对彩色多普勒视频进行后处理.
- 在两个设置上测试该方法:一个不符合标准的多普勒流幻影和一个符合标准的内部动脉模拟器.
- 使用超声波诊断系统与相位阵列探测器进行数据采集.
主要成果:
- 拟议的方法成功估计了使用回声流体在不合规的幻影中FAV.
- 该方法在符合标准的动脉模拟器中准确地测量了PWV,其回声流体含量低.
- 实验结果证实了该方法在局部血液动力学测量中的多功能性.
结论:
- 新的图像分析技术为PTT估计提供了一个可行的替代方案.
- 该方法可以在模拟的血管系统中准确地进行FAV和PWV的局部测量.
- 这种方法在心血管健康监测和诊断方面具有潜在的应用.
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