Table 3

Stress Myocardial Perfusion in Paired Sequential PET at Minute Intervals After Baseline PET

No. of StudiesRest Flow, cc/min/gStress Flow (cc/min/g)CFR
Stress Flow PET 1Stress Flow PET 2p ValueΔFlow Stress 2–Stress 1CFR PET 1CFR PET 2p ValueΔCFR Stress 2–Stress 1
7- to 12-min pair390.90 ± 0.352.07 ± 0.612.31 ± 0.68<0.0010.24 ± 0.292.43 ± 0.592.72 ± 0.66<0.0010.28 ± 0.33
8- to 13-min pair340.87 ± 0.332.13 ± 0.582.38 ± 0.59<0.0010.25 ± 0.302.64 ± 0.732.92 ± 0.65<0.0010.29 ± 0.38
8- to 14-min pair320.84 ± 0.262.12 ± 0.472.21 ± 0.520.0180.09 ± 0.212.65 ± 0.642.75 ± 0.670.0630.10 ± 0.29
8- to 15-min pair470.93 ± 0.232.39 ± 0.572.39 ± 0.570.900.02 ± 0.262.63 ± 0.502.64 ± 0.500.700.02 ± 0.29
8- to 16-min pair200.87 ± 0.312.04 ± 0.701.93 ± 0.570.14–0.12 ± 0.342.48 ± 0.762.33 ± 0.640.16–0.15 ± 0.45

Values are mean ± SD unless otherwise indicated. Bold indicates a significant difference between the paired PETs in those rows. Bold italics indicates that the 8- to 15-min paired PETs differed by only 0.02 ± 0.26, that is not significant and reflects test-retest precision.

CFR = coronary flow reserve; PET = positron emission tomography.