Table 3 T-wave morphology markers for \([K^{+}]\) monitoring.

From: Monitoring blood potassium concentration in hemodialysis patients by quantifying T-wave morphology dynamics

Markers

Description

Original markers from17

\(d_{w}^{u}\)*

Time-domain changes between

The reference and the i-th MWTW (ms).

\(d_w^{\mathrm{NL}}\)

Nonlinear component of the

Time-domain changes between

The reference and the i-th MWTW (ms)

\(d_a\)

Relative amplitude changes between

The reference and the i-th MWTW (%)

\(d_a^{\mathrm{NL}}\)

Relative nonlinear amplitude changes

After normalising the reference

And the i-th MWTW (%)

Specifically proposed in this work

\(d_{w}\)

Signed version of the

Previously proposed \(d_{w}^{u}\)* (ms)

\(d_{w,c}\)

Heart rate corrected version of \(d_{w}\) (ms)

  1. *\(d_{w}^{u}\) correspond to the marker denoted as \(d_{w}\) in17, while here.
  2. \(d_{w}\) is reserved for the newly introduced signed version.