Cardiology Research and Practice / 2009 / Article / Fig 1

Research Article

A Classification System to Detect Congestive Heart Failure Using Second-Order Difference Plot of RR Intervals

Figure 1

Second-order difference plots of a normal (a) and CHF (b) patient. Note the different scales in the two plots. Different scales were chosen to show clearly the structure in the two plots.
807379.fig.001a
(a)
807379.fig.001b
(b)

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