Cardiology.org · ECG reference model

Extreme Percentile ECG Variables

Select sex and enter age to calculate fitted 1st, 2nd, 98th, 99th percentiles for Spatial Vector Magnitude and QRS Duration.

years
Sex
1234 years

Spatial Vector Magnitude

Spatial QRS vector magnitude · age-dependent fitted limits

source units

QRS Duration

QRS duration · age-dependent fitted limits

milliseconds