Table 1.

Correlation coefficients (r) between electrical impedance and percentage of infarct fibrosis in 59 tissue samples from six pigs.

	Excitation frequency (kHz)	r	P
Myocardial resistivity	1	−0.86	<0.001
	41	−0.85	<0.001
	307	−0.82	<0.001
	1000	−0.76	<0.001
Phase angle	1	0.19	= 0.15
	41	0.84	<0.001
	307	0.83	<0.001
	1000	0.67	<0.001