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Table 2: 
Mean perfusion and VAI parameters in ETP and PP
Imaging ParametersETP (n = 41)PP (n = 17)P Valuea
rCBV1.88 [SD, 0.78]1.38 [SD, 0.53].02
rVSI99.67 [SD, 38.78]83.17 [SD, 40.60].15
Peak shift–0.02 [SD, 0.36]0.33 [SD, 0.77].02
Arterial dominance score1.46 [SD, 0.7]2.11 [SD, 0.6].001
  • ↵a P values from an independent-samples t test.