Dual-energy CT: clinical application in differentiating an adrenal adenoma from a metastasis.

Background: Application of dual-energy CT in characterization of adrenal nodules has not been well evaluated.

Purpose: To evaluate the ability of dual-energy CT scan to differentiate an adrenal adenoma from a metastasis.

Material And Methods: Fifty-five patients presenting 63 adrenal nodules underwent dual-energy CT scan at tube voltages of 80 kVp and 140 kVp.