Diagnostic performance of photon-counting detector CT for differentiation between adrenal adenomas and metastases.

Objectives: Aim of this study was to assess the value of virtual non-contrast (VNC) reconstructions in differentiating between adrenal adenomas and metastases on a photon-counting detector CT (PCD-CT).

Material And Methods: Patients with adrenal masses and contrast-enhanced CT scans in portal venous phase were included. Image reconstructions were performed, including conventional VNC (VNC) and PureCalcium VNC (VNC), as well as virtual monochromatic images (VMI, 40-90 keV) and iodine maps.