Fig. 4From: Impact of the EARL harmonization program on automatic delineation of metabolic active tumour volumes (MATVs)Comparison of MATVs from PSF images optimised for diagnostic potential and EARL-compliant PSF7 images (observer 1). Relationships between MATVs extracted from OSEM reconstructions and PSF or PSF7 reconstructions, for the 40% isocontour-based methods (a, b) and gradient-based methods (c, d), assessed using Bland–Altman plotsBack to article page