| 摘要 |
A patient monitoring system for acquiring a physiological waveform, and a method of detecting the presence of pacemaker pulses in same. The patient monitoring system includes an input circuit for acquiring an analog ECG, an analog pace detection circuit connected to the input amplifier for generating analog pacemaker pulse markers and energy measures from analog ECG, a digital ECG processing circuit for providing a digitized output of the analog ECG, and software for analyzing the digitized output to establish digital pace detection markers, and for comparing the analog pacemaker pulse markers and energy measures to the digital pace detection markers to eliminate erroneously detected pacemaker pulses. The method includes the acts of acquiring an analog ECG waveform; analyzing the analog ECG waveform to generate first pacemaker pulse markers and energy measures; digitizing the analog ECG waveform to produce digital ECG data; analyzing the digital ECG data to generate second pacemaker pulse markers; comparing the first pacemaker pulse markers and energy measures to the second pacemaker pulse markers; and analyzing the timing relationship between detected pacemaker pulses and certain ECG features to determine the pacing mode of the implanted pacemaker. |
