Fig. 5

Scatter points are the threshold for EMI (if observed) for six implantable cardiac pacemakers (P1–P6) tested across the seven different waveforms in WTMD simulator. For each waveform, PMEDs were exposed to maximum field generated in WTMD simulator (see Table 1) in order to investigate any potential EMI. Bars represent measured exposure field strengths in actual WTMDs. The “averaged max measured” fields are averaged over a pacemaker lead loop area of 225 cm²