Table 1.

Metrics Used to Evaluate RT and ΔRT Distributions

Metric	Definition
Mean RT	The mean overall RT representing global prolongation/abbreviation in recovery
Std RT	The SD over all RT representing the whole‐heart dispersion in recovery
Total RT dispersion	The RT range representing the whole‐heart dispersion in recovery
Peak timings	The timing of the peaks of a kernel probability distribution fitted to RT histograms using a bandwidth of 7 ms, representing the whole‐heart dispersion in recovery
MeanΔRT	The mean overall ΔRT representing the presence/absence of local ΔRTs
stdΔRT	The SD over all ΔRT representing the dispersion of local ΔRTs
MaxΔRT	The maximum ΔRT value representing the presence/absence of local ΔRTs

RT indicates repolarization time; and ΔRT, repolarization time gradient.