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Fig. 2 | Cancer Imaging

Fig. 2

From: Solid component proportion is an important predictor of tumor invasiveness in clinical stage T1N0M0 (cT1N0M0) lung adenocarcinoma

Fig. 2

Calculation of the ground-glass opacity component (GGOc) proportion and solid component (Sc) proportion in the CT number distribution curve. a The threshold CT values of GGOc were obtained using receiver operating characteristic (ROC) according to the CT appearance. b The threshold CT values of Sc were obtained using ROC according to the CT appearance. c A case of calculation of the GGOc proportion. The region of CT value≤ − 411.5 HU is defined as the GGOc in the CT number distribution curve, the proportion of which is 79.8%. d A case of calculation of the Sc proportion. The region of CT value≥ − 189.5 HU is defined as the solid component in CT number distribution curve, the proportion of which is 6.1%

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Cancer Imaging

ISSN: 1470-7330

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