False Alarm Reduction in Self-Care by Personalized Automatic Detection of ECG Electrode Cable Interchanges

Figure 2

Filtered ECG tracings of a patient undergoing an angioplasty, respectively recorded at 5 min 0 s (Panel (a)) and 5 min 20 s (Panel (b)) after balloon inflation. These tracings clearly show QRS pattern changes in leads I and II in panel (b) that may be interpreted as a reversal of these leads with respect to Panel (a) and explain why the ECG displayed in Panel (b) was misclassified by our LA–LL electrode cables reversal detection method.

(a)

(b)