- Material Decomposed images allow for the separation of materials like calcium, iodine, and water.
- Visualize a virtual non-contrast like image using the water-iodine basis pair image.
- Adjusting monochromatic energy levels can optimize image contrast and reduce beam-hardening artifacts.
- Discriminate different tissue types based on material density and monochromatic image data.
- Image overlays to visualize different material attributes in a single view.
- Vessel analysis to evaluate the extent of lumen occlusion when used with VesselIQ Xpress
- Iodine suppressed images with the dynamic range of regular CT images in addition to a virtual non-contrast like image using the water-iodine basis pair.
The GSI Viewer accepts images from a CT System that can acquire CT images using different kV levels of the same anatomical region of a patient in a single rotation from a single source. The differences in the energy dependence of the attenuation coefficient of the different materials provide information about the chemical composition of body materials. This approach enables images to be generated at energies selected from the available spectrum to visualize and analyze information about anatomical and pathological structures.
GSI provides information of the chemical composition of renal calculi by calculation and graphical display of the spectrum of effective atomic number. GSI Kidney stone characterization provides additional information to aid in the characterization of uric acid versus non-uric acid stones. it is intended to be used on non-contrast studies as an adjunct to current standard methods for evaluating stone etiology and composition.
Dr. Lawrence Tanenbaum
GSI Runoff Analysis
Gemstone Spectral Imaging (GSI) Vascular Analysis: Neurovascular Analysis using GSI
Gemstone Spectral Imaging (GSI) Metal Artifact Reduction using GSI for the Brain
Gemstone Spectral Imaging (GSI) Metal Artifact Reduction using GSI for Spine