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. 2022 Dec 1;11(1):1–11. doi: 10.1007/s40134-022-00405-w

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Fig. 15 — A baseline CT scan shows an incidental lung nodule in the right apex (A); 13 months later a follow-up CT scan was performed (B). By applying a CAD system, the diameter, the volume, and the doubling time can be calculated