Table 4.

Summary Data from Direct Endocardial/Epicardial Signal Comparison

Canine Model	Average Signals	Average XC	% XC > 0.8	Average DF Endo	Average DF Epi	% DF Match
Control	55±19	0.76±0.07	27±33§	6.22±0.98§	6.83±1.14*§	49±20§
MR	55±10	0.78±0.05§	46±33†§	5.69±1.14†§	6.05±0.66*†§	53±15§
CHF	54±13	0.77±0.04§	30±35§	6.86±0.72†	7.89±1.72*†§	66±30†§
RAP	58±13	0.74±0.04	12±13†	7.08±0.91†	8.76±1.26*†	26±10†
Meth	48±11	0.75±0.05	19±25	6.69±1.12	7.25±1.23§	41±20§
ANOVA		P = 0.01	P<0.0001	P<0.0001	P<0.0001	P<0.0001

^*p<0.01 in paired t-test between Endo and Epi DFs

^†p<0.05 vs Control

^§p<0.05 vs RAP