优化了用于血压分类的深度神经网络模型,使用基于富里埃分析的光电聚光学信号的时间频谱图
Pankaj1, Ashish Kumar2, Manjeet Kumar3
1Department of Electronics and Communication Engineering, Bennett University, Greater Noida, India.
Biomedical engineering letters
|October 24, 2023
概括
这项研究估计血压 (BP) 来自光电显微镜 (PPG) 信号,即使有运动器件. 使用富里埃分解的深度神经网络方法在分类高血压方面取得了96.5%的准确性,有助于预防心血管疾病.
科学领域:
- 生物医学工程 生物医学工程
- 信号处理 信号处理
- 人工智能的人工智能
背景情况:
- 心血管疾病 (CVD) 构成重大健康风险,高血压是主要原因.
- 通过持续监测和快速诊断,有效的血压管理对于预防心血管疾病至关重要.
- 光电显微镜 (PPG) 信号为生理监测提供了一种非侵入性方法,但易受运动工件的影响.
研究的目的:
- 开发一种实时方法,从运动工件影响的PPG信号中估计BP.
- 为准确的PPG信号分类提出一个深度神经网络 (DNN) 方法.
- 将PPG信号分为正常压力,高血压前期和高血压类别.
主要方法:
- 使用里埃分解法 (FDM) 将PPG信号转化为时间频率 (TF) 谱图.
- 修改预训练DNN的最后三层 (GoogleNet,DenseNet,AlexNet) 用于PPG信号分类.
- 培训和测试使用五重交叉验证方法对MIMIC-III和PPG-BP数据库的框架.
主要成果:
- 与DenseNet-201网络一起提出的框架实现了96.5%的测试准确性.
- FDM有效计算了TF光谱图,将运动工件和噪声与PPG信号分开.
- 经过清洁PPG信号特征训练的DNN显示了对实时BP分类的改进的一般化能力.
结论:
- 基于DNN的方法使用FDM生成的TF光谱图准确估计BP从噪音PPG信号.
- 在PPG数据中对BP状态进行分类时,DenseNet-201表现出卓越的性能.
- 这种方法增强了实时,非侵入性血压监测和高血压查的潜力.
更多相关视频
08:22Author Spotlight: Advancing the Study of Brain-Heart Interplay with a Comprehensive EEGLAB Plugin for Multimodal Signal Analysis
Published on: April 26, 2024
1.9K
11:26Assessing Cerebral Autoregulation via Oscillatory Lower Body Negative Pressure and Projection Pursuit Regression
Published on: December 10, 2014
12.4K
相关概念视频
01:18Neural Regulation of Blood Pressure
2.9K
The neural regulation of blood pressure involves intricate interactions between the autonomic nervous system (ANS) and cardiovascular system, ensuring adequate perfusion of tissues. This regulation primarily occurs through baroreceptor and chemoreceptor reflexes, involving both short-term and long-term mechanisms.
Baroreceptor Reflex
Baroreceptors, located in the carotid sinuses and aortic arch, detect changes in blood pressure. When blood pressure rises, these stretch-sensitive receptors...
Baroreceptor Reflex
Baroreceptors, located in the carotid sinuses and aortic arch, detect changes in blood pressure. When blood pressure rises, these stretch-sensitive receptors...
2.9K
01:19Assessing Blood pressure using a doppler ultrasound
1.4K
To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
1.4K
01:30Equipments Used To Measure Blood Pressure
986
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
986
01:17Measurement of Blood Pressure
975
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...
975
01:10Pre-Procedural Guidelines for Assessing Blood Pressure
574
Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the...
574