Figure 2
Atlas-predicted contouring for high risk breast cancer post lumpectomy. Representative slices of two contoured right breast-post lumpectomy cases comparing atlas predicted auto contours (bold outline) to manual contoured standard (thin outline with colourwash). Atlas subjects #5 (left images) and #14 (right images). ROIs demonstrated are CTVBRCWL (purple), CTVAX1 (yellow), CTVAX2 (pink), CTVAX3 (dark blue), CTVSCV (teal), LUMP (orange), H (red), LL(light yellow), RL(green). Bottom panels demonstrate the high degree of variability in seroma (LUMP) prediction with the atlas being unable to predict the subtle seroma (left images, DSC = 0) while contouring a more readily identifiable seroma with reasonable accuracy (right images, DSC = 0.89).