Figure 1 describes the basic architecture.
Figure 1. Enterprise level large-scale PACS and teleradiology combined model using the Grid Computing technology. The center of the figure is the grid computing infrastructure consisting of the Data Grid with the DICOM standard and IHE (Integrating Healthcare Enterprise) workflow profiles. The Data Grid handles the image and reports storage, and other grid computing resources take care of the workflow and management. The top row is the enterprise PACS consists of 1,…, N PAC systems. The bottom row depicts the pure teleradiology model with 1,…, M operations. Each PACS in the model has a shared storage contributed to the Data Grid. The Data Grid has a major component, “Teleradiology DICOM”, to direct the image and report workflow. Shaded areas represent the data storage contribution of PAC systems and Teleradiology to the Data Grid. In this model, radiologists at both PAC systems and teleradiology operation cover each other’s reading, and the Data Grid allows the sharing of the storage resources for both PAC systems and teleradiology operation.