Importing an Image Data File Native Data File Formats DICOM 3 Image Data Types Import Processing SPECT Image Data   Patient Catalog Using the Patient Catalog    SPECT Data Analysis 2D Analysis Views VOIs Talairach Altlas Grids 3D Analysis     Image Fusion Analysis: MRI and SPECT Image Mixture 2D Fusion Viewer VOIs 3D + 2D Viewer     Options Viewer Labels Viewer Layout