Table 1.

Linear regression results between the electromechanical and the electrical activation times in six canines during epicardial and endocardial pacing as well as during sinus rhythm.

	Dog #1	Dog #2	Dog #3	Dog #4	Dog #5	Dog #6	Mean value
Epicardial lateral pacing	R=0.87*** s=3.6 i=19ms	R=0.80*** s=2.5 i=12ms	R=0.91*** s=1.6 i=24ms	R=0.94*** s=1.9 i=47ms	R=0.47*** s=1.9 i=39ms	R=0.89*** s=1.5 i=34ms	R=0.79 s=2.2 i=29ms
Epicardial anterior pacing	N.A.	R=0.76*** s=1.5 i=54ms	R=0.63*** s=1.7 i=31ms	R=0.89*** s=2.3 i=16ms	R=0.88*** s=2.3 i=13 ms	R=0.80*** s=1.4 i=44 ms	R=0.81 s=1.8 i=32ms
Endocardial pacing	R=0.84*** s=1.9 i=47ms	R=0.74*** s=1.8 i=22ms	R=0.63*** s=1.6 i=33ms	N.A.	R=0.61*** s=0.9 i=52ms	R=0.61*** s=0.9 i=50ms	R=0.69 s=1.4 i=41 ms
Sinus rhythm	R=0.61*** s=2.7 i=34ms	R=0.43*** s=1.2 i=23ms	R=0.76*** s=2.4 i=60ms	R=0.78*** s=2.1 i=40ms	R=0.39** s=2.7 i=33ms	R=0.41** s=1.9 i=46ms	R=0.56 s=2.2 i=39ms

The table indicates for each case the correlation coefficient (R), the slope (s) and the intercept (i) of the regression. In two cases, the data were not available (N.A.).

^**p<0.01,

^***p<0.001