Figure 3.

Bland-Altman plots comparing thresholding mean signal and linear binning ventilation defect quantification schemes. a) ¹²⁹Xe ventilation defect percentage (VDP) quantified via linear bias corrected 60% threshold mean signal and linear binning. b) ¹²⁹Xe VDP quantified via N4ITK-bias corrected 60% threshold mean signal plotted against linear binning. c) ¹²⁹Xe VDP quantified via N4ITK-bias corrected 75% threshold mean signal plotted against linear binning. LB = linear bias corrected, N4ITK = N4ITK-bias field corrected, TH60 is thresholding at 60% mean lung signal, TH75 is thresholding at 75% mean lung signal, and Lbin = Linear Binning.