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Table 2 Semiquantitative analysis of ischemic and remote segment perfusion

From: Impact of caffeine on myocardial perfusion reserve assessed by semiquantitative adenosine stress perfusion cardiovascular magnetic resonance

  baseline (w/o caffeine) n = 25 p follow-up (w/ caffeine) n = 25 p p (baseline vs. follow-up)
ischemic remote   ischemic remote   ischemic remote
RU rest 11.4 ± 2.6 10.7 ± 2.0 0.40 10.9 ± 2.4 12.0 ± 2.2 0.32 0.27 <  0.01
RU adenosine 10.5 ± 3.3 15.7 ± 2.8 <  0.001 9.7 ± 2.9 14.6 ± 3.3 <  0.001 0.13 < 0.05
RUrest/RUadenosine = MPRI 0.95 ± 0.23 1.49 ± 0.19 <  0.001 0.89 ± 0.18 1.24 ± 0.19 <  0.001 0.23 < 0.001
MPRIremote/MPRIischemic = MPRI ratio 1.64 ± 0.35   1.41 ± 0.19   0.01
  1. Data are mean ± SD
  2. RU, relative upslope; MPRI, myocardial perfusion reserve index
  3. < 0.05 entries are in bold