FIGURE 3. Comparison of tracer concentration ratios between interstitial (Ci [g^-1]) and cellular (Cc [g^-1]) spaces for ²⁰¹Tl (A) and MIBI (B) during experiments conducted in normoxia (; n = 16), low-flow ischemia (; n = 15), and stunning (; n = 15). Activity ratios determined for each of 4 consecutive 10-min periods following myocardial extraction of tracer. *P < 0.05.

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