Jude Frie

To evaluate the accuracy of Metal Artifact Reduction (MAR) reconstructions in Head and Neck scans using Virtual Monoenergetic Images (VMI) acquired with the Dual-Energy CT (DECT) technology Gemstone Spectral Imaging (GSI)

To establish the equivalence of dual-energy 120kVp-like virtual monochromatic images (VMIs) to 120kVp standard single-energy CT images in terms of electron density, image quality, and as applied to clinically representative external beam therapy plans.