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Table 1 Blood gas measurements

From: Brain perfusion CT compared with15O-H2O-PET in healthy subjects

  RCBF PET RCBF CT  
( n = 11) Mean ± SD Mean ± SD p Value
PaCO2 (kPa) 5.51 ± 0.50 5.23 ± 0.42 < 0.01
PaO2 (kPa) 13.80 ± 1.37 14.77 ± 1.19 NS
ctHb (mmol/L) 8.22 ± 0.69 8.12 ± 0.73 NS
sO2 (%) 0.98 ± 0.01 0.99 ± 0.00 NS
  1. RCBF, regional cerebral blood flow; CT, computed tomography; PET, positron-emission tomography; SD, standard deviation; NS, non-significant; PaCO2, arterial tension of carbon dioxide; PaO2, arterial tension of oxygen; ctHb, haemoglobin concentration; sO2, oxygen saturation.