Spectral computed tomography parameters of primary tumors and lymph nodes for predicting tumor deposits in colorectal cancer

Figure 3 Illustration of venous phase segmentation. The 66-year-old male patient with tumor deposits-. In the arterial and venous phases the normalized iodine concentration of region of interest: A: Primary tumors (arrow) = 0.14, 0.38; B: The largest regional lymph nodes (dashed arrow) = 0.20, 0.65. Lymph node-to-primary tumor ratio = 1.39, 1.73.