Computed tomography perfusion using first pass methods for lung nodule characterization.

Objective:To evaluate computed tomography (CT) perfusion using first pass methods for lung nodule characterization.Methods:Fifty-seven patients with 51 malignant and 6 benign nodules underwent first-pass, dynamic contrast-enhanced-CT (50 mL, 3–5 mL/s.). Kinetic analysis tools were CT Perfusion 3 (GE