A system identifies, flags and tracks images and series of images previously accessed by a healthcare worker. A system for tracking medical image viewing by a user includes at least one repository storing data representing multiple medical images of a particular patient available for use in preparing a report. A viewing processor tracks whether an individual image of the multiple medical images has been presented on a display device by using predetermined rules in determining whether data representing the individual image has been communicated to the display device for display to a particular user associated with received user identification information. The viewing processor generates a viewed indicator associated with the individual image and the particular user in response to a determination data representing the individual display image has been communicated to the display device for display to the particular user. A documentation processor at least one of, (a) associates data representing the generated viewed indicator with data representing the individual image and (b) stores data, representing the generated viewed indicator and associates the generated viewed indicator with the individual image and the particular user, in a record.