Coleman J D, Bolton M P
J Med Eng Technol. 1979 Sep;3(5):235-41. doi: 10.3109/03091907909160662.
ECG monitoring devices for coronary care units require reliable R-wave dectors as a prerequisite for subsequent analysis. A simple algorithm has been developed for the detection of R-waves in an ECG signal with a microprocessor (Motorola MC6800). Detection criteria used were gradient and duration of a single upslope or downslope. Rejection of muscle noise and other artifiacts was achieved by setting system constants to optimum values which were determined by a short preliminary trial. This constant threshold system has been shown to cope with sudden changes of QRS complex amplitude better than some self adjusting systems. Assessment runs using patient tapes from a coronary care unit show total errors due to false positives and negatives are typically about 1% of the actual number of R-wave occurrences.
冠心病监护病房的心电图监测设备需要可靠的R波检测器作为后续分析的前提条件。已开发出一种简单算法，用于通过微处理器（摩托罗拉MC6800）检测心电图信号中的R波。所使用的检测标准是单个上升或下降斜率的梯度和持续时间。通过将系统常数设置为通过简短初步试验确定的最佳值，可抑制肌肉噪声和其他伪迹。已证明这种恒定阈值系统比某些自调节系统更能应对QRS波群幅度的突然变化。使用冠心病监护病房患者磁带进行的评估运行表明，由于假阳性和假阴性导致的总误差通常约为实际R波出现次数的1%。
