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Table 2 Correlations of PFT parameters and 68Ga-V/Q PET/CT functional volumes computed with the manual reference standard and the 15%max fixed threshold

From: Automatic delineation of functional lung volumes with 68Ga-ventilation/perfusion PET/CT

  Reference standard [7] 15%max threshold
  %WL with normal ventilation %WL with normal perfusion %WL with normal ventilation %WL with normal perfusion
FEV1/FVC 0.78* 0.81* 0.48* 0.46*
FEV1 (%pred) 0.61* 0.62* 0.24 0.25
DLCO (%pred) 0.43* 0.47* − 0.07 0.00
FVC (%pred) 0.30 0.28 0.03 − 0.01
  1. *indicates p value <0.05