Spectral CT Analysis of Solitary Pulmonary Nodules for Differentiating Malignancy from Benignancy: The Value of Iodine Concentration Spatial Distribution Difference

Figure 3

A 60-year-old man with tuberculosis in the inferior lobe of right lung. The spectral CT (section thickness, 0.625 mm) water-based material decomposition images (a-c) and iodine-based material decomposition image (d-f) at PP, AP, and VP. The region of interest (ROI) was drawn in the proximal and distal area of the lesion. dNIC (PP) = -0.38, dNIC (AP) = -0.14, and dNIC (VP) = -0.22.

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