Table 4. Reliability of PV angles and posterior LA surface area.

			Intraclass correlation coefficients	95% confidence intervals
PV angle ①
	MediGuide group (n=15)
		M-EM-GEO	0.871	0.656–0.955
		M-IM-GEO	0.744	0.351–0.909
	Conventional group (n=40)
		C-IM-GEO	0.548	0.286–0.733
PV angle ②
	MediGuide group (n=15)
		M-EM-GEO	0.887	0.600–0.964
		M-IM-GEO	0.646	0.073–0.879
	Conventional group (n=40)
		C-IM-GEO	0.639	0.415–0.791
PV angle ③
	MediGuide group (n=15)
		M-EM-GEO	0.853	0.626–0.947
		M-IM-GEO	0.613	0.158–0.852
	Conventional group (n=40)
		C-IM-GEO	0.691	0.489–0.824
PV angle ④
	MediGuide group (n=15)
		M-EM-GEO	0.911	0.756–0.969
		M-IM-GEO	0.722	0.355–0.897
	Conventional group (n=40)
		C-IM-GEO	0.706	0.507–0.833
Posterior LA surface area ⑤
	MediGuide group (n=15)
		M-EM-GEO	0.833	0.577–0.940
		M-IM-GEO	0.521	−0.100–0.837
	Conventional group (n=40)
		C-IM-GEO	0.568	0.078–0.797

C-IM-GEO = Conventional group, impedance field-scaled geometry; LA = left atrium; M-EM-GEO = MediGuide group, electromagnetic field-scaled geometry; M-IM-GEO = MediGuide group, impedance field-scaled geometry; PV = pulmonary vein.