CT Gemstone Spectral Imaging (GSI) instruction provides the Radiologic Technologists/Radiologists with training in the theory, operation and application of this diagnostic procedure on their GEHC scanner and Advantage Workstation (where applicable).  Upon completion participants should be able to operate the scanner software as required by the Physician in the performance of patient studies, and generate spectral images for review.  The program spans 2 days and combines didactic instruction and practical hands-on training segments.