The renderings and maps are saved in a database that is accessible from the Web in order to facilitate local and remote data sharing. In this slide the user has requested a surface rendering as well as information about the MR series that were used to create the 3-D patient model. Note the veins and arteries, which are much more prominent in surface renderings than in volume renderings of the type shown in the previous slide, and which are important landmarks for the visual matching. (The Web-based Retrieval tool is not yet publically-available).