Fig. 6From: Tumor blood vessel in 3D reconstruction CT imaging as an risk indicator for growth of pulmonary nodule with ground-glass opacityKaplan–Meier plot for time to nodule growth according to CTR (the maximum diameter of consolidation in tumor (C) and the maximum diameter of the whole tumor including GGO (T). The CTR means C/T ratio. Part-solid GGNs (CTR > 0.5) show significantly higher cumulative percentages of growth than GGNs with CTR < 0.5Back to article page