Research Article

Gemstone Spectral CT Virtual Noncontrast Images and Iodine Maps for the Characterization of Thyroid Lesions and Distinguishing Thyroid Papillary Carcinoma from Nodular Goiter

Figure 4

Receiver operating characteristic curve of the absolute attenuation between virtual noncontrast (VNC) and true noncontrast (TNC) images and iodine density for distinguishing papillary carcinoma from nodular goiter.