Fig. 3.

Server-based rendering (SBR) is introduced at the third level, along with thin client applications. Thin clients have a smaller footprint on the client machine. SBR offloads graphics computation from the client machine to a server in the data center. At this level, the rendering server maintains its own private cache of image data, received from the primary archive or modality (M) via DICOM transfer. While SBR provides several advantages including improved performance and supportability, duplicated storage and server-to-server DICOM transfers are inefficient. Context-sharing on the client machine is now achieved by a standardized protocol (dotted line), allowing for improved interoperability