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Table 3 Mean CBF and CBV for patients with symptomatic ICA occlusion, classified in haemodynamic stage 0 ( n= 10) and haemodynamic stage 1 or 2 ( n= 13)

From: Intervention versus standard medical treatment in patients with symptomatic occlusion of the internal carotid artery: a randomised oxygen-15 PET study

  Intervention Standard Unadjusted difference in change (95% CI) Adjusted difference in change *(95% CI)
   Mean ± SD Mean ± SD   
Haemodynamic stage 0 N = 5 N = 5  
 CBF MCA (mL/min/100 mL) Baseline 37.0 ± 3.0 35.0 ± 5.6   
3 months 33.9 ± 5.8 34.4 ± 5.2   
Change −3.1 ± 8.1 −0.6 ± 5.3 −2.5 (−12.5 to 7.4) −1.7 (−15.6 to 12.2)
 CBV MCA (mL/100 mL) Baseline 3.1 ± 0.6 2.8 ± 0.7   
3 months 3.0 ± 0.7 3.5 ± 0.4   
Change −0.2 ± 1.1 0.6 ± 1.0 −0.8 (−2.3 to 0.7) −1.1 (−3.2 to 1.1)
Haemodynamic stage 1 or 2 N = 7 N = 6  
 CBF MCA (mL/min/100 mL) Baseline 27.2 ± 3.4 31.5 ± 5.2   
3 months 30.0 ± 3.9 32.8 ± 4.6   
Change 2.8 ± 3.1 1.3 ± 3.2 1.6 (−2.2 to 5.4) −1.1 (−7.8 to 5.7)
 CBV MCA (mL/100 mL) Baseline 2.9 ± 0.6 3.7 ± 0.8   
3 months 4.0 ± 1.7 3.0 ± 0.6   
  Change 1.1 ± 1.9 −0.7 ± 1.1 1.8 (−0.2 to 3.8) 1.4 (−2.4 to 5.1)
  1. Asterisk ‘*’ indicates adjusted for age and sex; CBF, cerebral blood flow; CBV, cerebral blood volume; MCA, middle cerebral artery.