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. Author manuscript; available in PMC: 2015 Jan 2.
Published in final edited form as: J Am Coll Cardiol. 2014 Mar 19;63(20):2151–2158. doi: 10.1016/j.jacc.2014.02.551

Figure 1. Scatter Plot of ΔCI Demonstrating Variable CI in PVCs Originating From the SOV/GCV But Not in PVCs From the RV/LV.

Figure 1

The scatter plot demonstrates that PVCs originating from the SOV/GCV predominantly have a ΔCI <60 ms, whereas RV/LV origin PVCs consistently have a ΔCI >60 ms with a ΔCI of <60 ms, demonstrating a sensitivity of 89%, specificity of 100%, positive predictive value of 100%, and negative predictive value of 94%. ΔCI = (maximum – minimum) coupling interval; PVC = premature ventricular complexes; RV/LV = right ventricle/left ventricle; SOV/GCV = sinus of Valsalva/great cardiac vein.