Fig. 2

Measurement of dual-energy computed tomography (DECT) parameters in the same patients for different lymph nodes. The left column shows benign lymph nodes; the right column shows metastatic lymph nodes. Venous phase contrast-enhanced DECT images show the target lymph node with the following characteristics: iodine-based pseudo-colorized images for A a benign lymph node and B metastatic lymph node; representative effective atomic number images for C a benign lymph node and D a metastatic lymph node; representative venous phase CT images for E a benign lymph node and F a malignant lymph node; and graph of the spectral HU curves for G a benign lymph node, and H a malignant lymph node. CT, computed tomography; HU, Hounsfield unit