Figure 1
Analysis of unipolar electrograms and DCL on the CARTOFINDER system
(A) Annotation Algorithm Shaded regions represent the WOI defined by the total activation phase of the bipolar electrogram. The yellow dots represent each annotation point on the unipolar electrogram. White double-headed arrows represent the CL. (B) Schema of DCL. The white bars represent the annotations of each channel. (C) Screen of the unipolar recording. In this example, the unipolar channel Pen 7 shows frequent repetitive focal activation. White arrows represent consecutive QS patterns that occur earlier than their neighboring electrodes. WOI, window of interest; DCL, dominant cycle length; CL, cycle length