...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>PACE: Pacing and clinical electrophysiology >Assessment of noise in digital electrocardiograms.
【24h】

Assessment of noise in digital electrocardiograms.

机译：数字心电图中的噪声评估。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Technically related noise in 12-lead ECGs recorded with ambulatory recorders has never been systematically compared with that in ECGs recorded with conventional ECGs. This study compared serial 10-second ECGs obtained in ten healthy men, age 22-45 years, who were recorded in the supine resting position using a (1) MAC VU recorder, (2) digital ambulatory SEER MC recorder with a Multi-Link detachable ECG cable, and (3) digital ambulatory SEER MC recorder with a light ambulatory ECG cable. In each ECG, averaged sinus rhythm cycles of the entire recording were realigned with the native signal and subtracted. The resulting "residuum" was quantified by computing its standard deviation and root mean square of successive differences (RMSSD). While the RMSSD residuum values were significantly lower with the MAC VU recorder (6.27 +/- 0.98 microV) than with the SEER MC recorder with either ECG cables (7.29 +/- 1.31 and 7.17 +/- 1.31 microV, P < 0.003 and p < 0.02), the difference was practically negligible and there was no detectable difference in the standard deviation residuum values. The study concludes that valid ECG investigations of serial ECG testing may be conducted using the ambulatory SEER MC recorders providing the biological sources of ECG noise are controlled. The available technology for noise assessment suggests that studies involving advanced analysis of serial ECGs (e.g., of drug related changes), should incorporate objective characterisation of ECG quality.
机译：动态记录仪记录的12导联心电图与技术相关的噪音从未与常规心电图记录的ECG进行系统比较。这项研究比较了使用（1）MAC VU记录器，（2）带Multi-Link的数字化动态SEER MC记录器在10位22-45岁健康男性中以仰卧姿势记录的连续10秒心电图可拆卸的ECG电缆，以及（3）带轻型动态ECG电缆的数字式动态SEER MC记录仪。在每个ECG中，将整个记录的平均窦性心律周期与原始信号重新对齐并减去。通过计算其标准差和连续差均方根（RMSSD）来量化所得的“残渣”。尽管使用MAC VU记录器（6.27 +/- 0.98 microV）的RMSSD残留值明显低于使用两条ECG电缆（7.29 +/- 1.31和7.17 +/- 1.31 microV的SEER MC记录器），P <0.003和p <0.02），差异几乎可以忽略不计，标准偏差残差值也没有可检测的差异。研究得出结论，可以使用动态SEER MC记录仪对串行ECG测试进行有效的ECG调查，前提是可以控制ECG噪声的生物学来源。现有的噪声评估技术表明，涉及对连续心电图（例如，与药物有关的变化）进行高级分析的研究应纳入心电图质量的客观特征。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号