Detection of Structural Changes in Tachogram Series for  the Diagnosis of Atrial Fibrillation Events

<table class="table-group" width="800px"><tr class="fig-image" id="a"><td><img alt="373401.fig.006a" src="https://static.hindawi.com/articles/cmmm/volume-2013/373401/figures/373401.fig.006a.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(a) </b>Tachogram of patient 1</td></tr></table></td></tr><tr class="fig-image" id="b"><td><img alt="373401.fig.006b" src="https://static.hindawi.com/articles/cmmm/volume-2013/373401/figures/373401.fig.006b.jpg"/></td></tr><tr class="fig-caption"><td align="center"><table><tr><td><b>(b) </b>Tachogram of patient 4</td></tr></table></td></tr></table>

<table>Tachogram of two patients. For patient 1 (a), AF event comes after and is followed by normal sinus rhythm, characterized by low heart rate variability. Patient 4 (b) presents a high rate variability even before and after the AF event.</table>

Computational and Mathematical Methods in Medicine

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Figure 6

Figure 6: Detection of Structural Changes in Tachogram Series for  the Diagnosis of Atrial Fibrillation Events 