Changing demographic information within DicomRay is very simple, here's how:
To change a patient's information, simply click on the patient from the left field, and click on the information in the box you would like to change. If there is an "x" in the box, this means you are not allowed to edit that information.
As you click down the hierarchy of the patient studies, you will see that the tabs above the patient information will light up. You can then click these tabs "Patient" "Study" "Series" "Image" and edit their information accordingly.