级联冗余卷积式编码器-解码器网络在麻醉后护理单位的患者中使用气管声音提高了呼吸暂停检测性能
Erpeng Zhang1, Xiuzhu Jia1, Yanan Wu2
1Department of Biomedical Engineering, School of Intelligent Medicine, China Medical University, Shenyang, Liaoning, People's Republic of China.
这项研究引入了一种用于气管声音的新型无声化方法,以改善在麻醉后护理单位 (PACU) 中的呼吸暂停检测. 级联冗余卷积编码解码器网络 (CR-CED) 准确识别呼吸暂停事件,提高患者的安全性.
科学领域:
- 生物医学工程 生物医学工程
- 信号处理 信号处理
- 呼吸系统医学 呼吸系统医学
背景情况:
- 声音呼吸暂停检测受到噪音的阻碍,导致误诊.
- 有效地消除气管声音对于在临床环境中如麻醉后护理单位 (PACU) 中可靠检测呼吸暂停至关重要.
研究的目的:
- 通过开发气管内声音消音方法来增强PACU中的呼吸暂停检测算法.
- 在不需要单独的背景噪声记录的情况下处理气管道声音.
主要方法:
- 气管声音数据被收集并用背景噪音合成损坏.
- 频域特征是使用短时间里埃转换 (STFT) 提取的.
- 一个级联冗余卷积编码解码器 (CR-CED) 网络被训练为无声化,其次是呼吸暂停检测.
主要成果:
- CR-CED网络在呼吸暂停检测中实现了88%的灵敏度和98.6%的特异性.
- 确切检测了207个呼吸暂停事件和11,305个正常呼吸事件.
- 拒绝方法在现实世界PACU患者数据上被证明是有效的.
结论:
- 该CR-CED网络提供准确可靠的气管声音,用于PACU中检测呼吸暂停.
- 这种方法有效地提高了气管声音分析在医疗环境中的适用性.
- 该方法成功地消除了气管声音,而不需要单独的背景噪声样本.
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