Research Article

A Hybrid Signal Processing of RR Intervals from QTc Variation Searching Arrhythmia and Improving Heart Rate Variability Assessment in Acute Large Artery Ischemic Stroke

Figure 4

Representative case of Poincaré plot for (a) NQTc-nonAF Kalman group and (b) LQTc-AF Kalman group.
(a)
(b)