Patent ID: 8019042

Claim:
A medical radiation therapy and workflow system supporting review and update of radiotherapy treatment, comprising: a task processor for providing task management data for initiating image comparison tasks prior to performing a session of radiotherapy; an image comparator, coupled to said task processor, for, in response to said task management data, comparing a first image of an anatomical portion of a particular patient used for planning radiotherapy for said particular patient, with a second image of said anatomical portion of said particular patient obtained on a subsequent date, by image alignment and comparison of image element representative data of aligned first and second images to determine a first image difference representative value and determining whether said first image difference representative value exceeds a first predetermined threshold; and an output processor, coupled to said image comparator, for initiating generation of an alert message indicating a need to review planned radiotherapy treatment for communication to a user in response to a determination said first image difference representative value exceeds a predetermined threshold.