Cortex provides a link to the PACS Intelerad system in patient context to allow viewing of images and reports at the bedside. To be able to use this your PACS username needs to be set up in the backend of Cortex.
If you experience a spinning wheel when trying to access radiology on Cortex, this is usually due to your PACS (Intelerad) account not being set up. Please see this article for details.