Networking Architecture

Workstation connectivity

Every workstation whether it is for RIS, PACS or both, can connect to one or more Evorad RIS-PACS servers in one of the following ways:

  • Download standalone Evorad Workstation application from the server. The application will check for software updates and get them automatically every time it connects to Evorad RIS-PACS server.
  • Connect using a popular Internet browser using the web-based Evorad Workstation

Both ways share the same environment (Graphical User Interface) without any functional limitation in the web-based version. However the administrator of the system may limit the available functionality to specific user roles, e.g. clinical doctors may not have access to all image processing tools.

Network deployment

Evorad RIS-PACS offers many network deployment options that range from simple Local Area Network (LAN) base to multi-site PACS solutions. The diagram shows the superset of these options:

Evorad RIS-PACS NetworkingEvorad RIS-PACS Networking


1. Internal network with modalities, Evorad RIS-PACS server and Evorad Workstation for RIS, PACS and RIS-PACS users.

2. Remote workstation, which is connected through the internet for second opinion or remote diagnosis by an experienced radiologist, e.g. in the case of an emergency situation.

3. Peripheral Evorad RIS-PACS implementation in a multi-site PACS deployment, which is bidirectionally synchronized with the central server. Evorad RIS-PACS Servers could also operate in a distributed multi-site deployment where none of them is considered to be the central one.

Image transfer technology

Image and data transfer between Evorad Workstation and Evorad RIS-PACS Server is based on the HTTP protocol which minimizes configuration requirements for existing networking infrastructure. For maximum security the system can use the secure HTTPS protocol (SSL technology) that enforces data encryption.

Images are transferred using special streaming technology that maximizes network bandwidth utilization while preserving original DICOM file content as it was delivered by the modalities.