低功率的长期门诊心电监测监测器三个带头与心跳对心跳率实时测量
Frank Martínez-Suárez1,2, José Alberto García-Limón1,2, Jorge Enrique Baños-Bautista1
1Bioelectronics Section, Department of Electrical Engineering, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav), Mexico City 07360, Mexico.
Sensors (Basel, Switzerland)
|October 14, 2023
概括
一个新的低功耗的门诊心电图监测器提供了84小时的连续录制与实时心率监测. 它的先进的QRS检测算法确保了对长期心血管健康研究的准确分析.
科学领域:
- 生物医学工程 生物医学工程
- 心血管技术的心血管技术
- 可穿戴的健康设备
背景情况:
- 持续的心电图 (ECG) 监测对于诊断和管理心血管疾病至关重要.
- 现有的门诊心电图系统可能面临电池寿命,数据处理和实时分析方面的限制.
- 需要一种低功耗的,具有先进信号处理能力的长期心电图监测解决方案.
研究的目的:
- 开发和评估一个低功耗,长期的门诊心电图监测器,用于持续的数据采集和实时分析.
- 实施强大的QRS复杂检测算法,以准确测量心率.
- 评估监视器的性能与商业系统对临床适用性的评估.
主要方法:
- 使用ADS1294模拟前端和ESP32微控制器开发便携式心电图监视器.
- 基于带有splines的连续波量变换的QRS检测算法的实施.
- 包括引线检测和实时视觉/声学报警,以确保运营完整性.
- 在microSD卡 (4-32GB) 和1.4英寸液晶显示器上存储数据.
- 使用BIOPAC MP36系统对ECG形态和QRS检测精度进行比较分析的评估.
主要成果:
- 监视器提供连续的心电图记录长达84小时,并测量每次心率.
- 在实时分析中,QRS检测算法实现了不到5%的错误率.
- 电脑心电图形态与商业系统的相关性达到91.78%,表明高精度.
- 该设备具有可编程的采样率,高的常态拒绝比率 (CMRR) 和低功耗 (50 mA).
结论:
- 开发的低功率门诊心电图监测器是长期心率变化分析的可行工具.
- 它的准确性和扩展的记录能力支持为各种患者群体创建全面的心电图数据库.
- 该系统的功能促进了在门诊环境中可靠的,持续的心血管监测.
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