PACS configuration

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PACS configuration


Basic settings


Open the PACS search and download window:




If you do this for the first time, you will be asked to configure PACS settings:




If the configuration was already performed, you have to click the options icon RadiAnt_DICOM_Viewer_PACS_config_icon or use the shortcut  Ctrl + O  to change PACS settings.


Each networked DICOM application is characterized by three basic parameters: IP address, port and AE (Application Entity) title. The IP address is configured via system network settings. The port on which RadiAnt listens for PACS connections and the AE title are configured in RadiAnt. By default, the port is set to 11112 and the AE title to RADIANT.




Remember to configure your PACS server with the IP, port and AE title of RadiAnt DICOM Viewer. Otherwise, you will not be able to search and download studies to RadiAnt from this server.


Adding a PACS host


To add a new PACS location, the AE parameters (IP, port and title) of the server are needed. Enter them in the fields below, add a description and press  Enter  or click  Add .




After clicking  Save , you are ready to perform your first search and download.




If this is your first configuration and Windows Firewall is enabled, you will be asked to unblock network communication for RadiAnt. Click  Allow access ; otherwise, you will not be able to download DICOM studies from PACS locations.




Verifying PACS hosts (C-ECHO)


After a new PACS location is added to the list, a proper configuration and network connectivity can be verified using the C-ECHO DICOM service.


Click the RadiAnt_DICOM_Viewer_PACS_verify_icon button or press  F2  to perform a DICOM ping (C-ECHO) on all hosts in the list.

The locations awaiting verification will be presented with a yellow background.

After positive verification, the host's background becomes green.

If the connection and association with a host cannot be established, the background turns red.




Modifying PACS hosts

To change some parameters of a PACS location, select it in the list, change the desired field and press  Enter  or click the arrow icon RadiAnt_DICOM_Viewer_PACS_config_modify_host.

When you have several PACS location configured, you can change their priority in search by selecting them and clicking the up RadiAnt_DICOM_Viewer_PACS_config_move_up_host and down RadiAnt_DICOM_Viewer_PACS_config_move_down_host arrows (or using the shortcuts  Ctrl + Up  or  Ctrl + Down ).

If several locations are searched at the same time and give results with studies having the same study UID, the location with higher priority will be used to download the study.

To delete the selected location, click the RadiAnt_DICOM_Viewer_PACS_config_delete_host button or press  Ctrl + Del .




Advanced settings


Click the right mouse button on the selected PACS location to show the pop-up menu.


Select Preferred transfer syntax to change the encoding used when communicating with a PACS host. By default, the Explicit VR Little Endian transfer syntax is used. However, you may try other encodings if some problems with communication are encountered.




The maximum active downloads option lets you set the limit of concurrent downloads from one PACS host. The default value is 1. Usually, when set to a larger value, it will speed up the transfer of multiple studies. However, changing this value may also lead to connection timeouts and errors, depending on specific PACS server implementation.