Fig. 2From: Reappraising the clinical usability of consolidation-to-tumor ratio on CT in clinical stage IA lung cancerMeasurement of the consolidation-to-tumor ratio (CTR). a Computed tomography scan shows a part-solid nodule consisting of ground-glass nodule with a solid component. b Illustration of measurement of the CTR. c The maximum diameter of the entire tumor is 26 mm. d The maximum diameter of the solid portion is 12.8 mmBack to article page