Figure 5.

Statistical evaluation of rotor occurrence rate measurement. (a) Correlation of rotor occurrence rates as measured by the two techniques. LA, left atrium; LSPV, left superior pulmonary vein; RA, right atrium; RSPV, right superior pulmonary vein. (b) Bland–Altman plot of agreement between measurements of rotor occurrence rate by the two techniques. Mean difference (novel noninvasive epicardial and endocardial electrophysiology system [NEEES] – catheter) is 0.04 per second, with the zone of agreement ranging from −0.117 to 0.197 per second