| 摘要 |
The method involves pacing a heart of a subject by emitting at least one pacing pulse from a cardiac pacemaker. The pacing pulse after emission exhibiting an exponential decay with an associated decay time, provides at least two surface ECG measurements from the subject during the decay time. The latter is estimated from the ECG measurements. An impedance of the electrode lead is identified from a combination of the capacitance and the decay time estimated from the ECG measurements. Forming at least two surface ECG measurements from the subject that comprises sampling an ECG waveform obtained from the subject to provide a number of data points during the decay time. Estimating of the decay time is performed by exponential regression analysis of the ECG data points. |
