The Strength-Interval Curve in Cardiac Tissue

Figure 4

The calculated cathodal (a) and anodal (c) strength-interval curves for S2 pulse durations of 2, 5, 10, and 20 msec. (b) and (d) are the same cathodal and anodal strength-interval curves at long intervals [10].

(a)

(b)

(c)

(d)