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Figure 2 Difference in time course of APV alterations between group D (lines with solid circles) and group I (lines with open squares) was significant (p < 0.0001) by two-way repeated analysis of variance. The APV at 15 minutes after PTCA and 4 h later in group D were 19.4 ± 5.4 and 15.0 ± 7.3 cm/sec, respectively, whereas those in group I were 20.7 ± 6.6 and 13.4 ± 7.5 cm/sec, respectively. Group I showed a larger APV at the end of monitoring than group D (21.2 ± 9.1 vs. 9.0 ± 3.5 cm/sec).