Fig. 2
A representative example of automatic delineation of a tumour. MATVs derived from OSEM, PSF, and PSF7 reconstructions, as well as their unions and intersections, are shown on axial slices from a 61-year-old patient presenting with a stage IIIA squamous cell lung cancer. Panels a and b display 40% isocontour-based volumes and gradient-based volumes, respectively
