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Table 3 Mean Myocardial Blood Flow and Myocardial Flow Reserve with residual activity correction divided by age categories

From: Myocardial blood flow and myocardial flow reserve values in 13N–ammonia myocardial perfusion PET/CT using a time-efficient protocol in patients without coronary artery disease

Subgroup (n)

MBF rest (ml/g/min)

MBF stress (ml/g/min)

MFR (stress/rest ratio)

Total (206)

1.02 ± 0.22a

2.54 ± 0.41

2.60 ± 0.61a

Age < 50 (30)

1.05 ± 0.23

2.68 ± 0.48

2.66 ± 0.67

Age 50–59 (45)

0.99 ± 0.21

2.57 ± 0.43

2.73 ± 0.69a

Age 60–69 (73)

0.99 ± 0.22a

2.53 ± 0.39

2.66 ± 0.54

Age ≥ 70 (58)

1.08 ± 0.23

2.46 ± 0.36

2.39 ± 0.56a

  1. Mean results ± standard deviation
  2. MBF Myocardial Blood Flow, MFR Myocardial Flow Reserve
  3. anot normally distributed by Shapiro-Wilk test