Overview of qualitative perfusion scores and quantitative perfusion in H2[15O]-PET and ASL

Qualitative PerfusionQuantitative PerfusionTerritory
ACAMCAPCA
PET
    NormalCBF: 31.51 ± 6.87a9/26 (35%)13/26 (50%)23/26 (88%)
rCBF: 1.011 ± 0.112
    ReducedCBF: 28.20 ± 6.97a12/26 (46%)9/26 (35%)3/26 (12%)
rCBF: 0.943 ± 0.163
    Severely ReducedCBF: 23.00 ± 3.70a5/26 (19%)4/26 (15%)
rCBF: 0.677 ± 0.161
ASL
    NormalCBF: 31.88 ± 8.24a6/26 (23%)15/26 (57%)25/26 (96%)
rCBF: 1.059 ± 0.159
    ReducedCBF: 24.76 ± 7.58a15/26 (58%)8/26 (31%)1/26 (4%)
rCBF: 0.853 ± 0.249
    Severely ReducedCBF: 16.06 ± 5.18a5/26 (19%)3/26 (12%)None
rCBF: 0.507 ± 0.098
  • Note:—ACA indicates anterior cerebral artery; PCA, posterior cerebral artery; rCBF, relative CBF (values are given as ratios to cerebellar CBF).

  • a CBF values are given as mL/min per 100 g.