摘要:病人监护仪的一项重要功能是在病人的ECG心率超过设定限度或某种心律失常出现时提供警告机制。在ECG信号中存在伪迹或低信号振幅通常会导致在前述情况下出现显著的假阳性报警率。同样地,伪迹和低信号质量也会在脉冲定量检测和血压监护时出现假阳性报警。例如,有一项研究表明,在298小时的ICU监护中,2942个报警信号中的86%都是假阳性的^[1]。
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