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After Mac OPX sunsets on June 1, 2026, Mac users must use a third-party DICOM viewer to view studies in OnePACS. OnePACS supports both Aycan and OsiriX.

Important Note: OnePACS does not distribute or license Aycan or OsiriX. Customers should work with the vendor on all third-party licensing and support needs.

Set Up Aycan for OnePACS

To view OnePACS studies using the Aycan viewer, first ensure that the following requirements are met:

  • Purchase an active Aycan license and download Aycan according to vendor instructions.
  • Download the OnePACS Study Retriever from the Downloads section of the OnePACS website.

Activate Aycan

To activate Aycan, click the Activation tab in the aycan workstation Manager window. Copy the 10-character alphanumeric Hardware Key and send this key upon request to the vendor's support engineer. Enter the Activation Code provided by the vendor's support engineer into the Activation Code field and click OK. 

OP_Install_Aycan_ActivationCodes.png

Click the Information tab in the aycan workstation Manager window and click Start Aycan Workstation to open Aycan.

OP_Install_Aycan_InfoTabStartWorkstation.png

Download the OnePACS Study Retriever 
Edit section

From the OnePACS worklist, navigate to Options > Downloads. 

OP_Install_Aycan_OptionsDownloads.png

To Download Prior to 1/28/2026

Until 1/28/2026, the OnePACS Desktop application contains with OnePACS Study Retriever. Click the Download OnePacsDesktop link on the Downloads page and follow the download instructions. 

OP_Install_DownloadOPDesktopMacOS.png

To Download On or After 1/28/2026

Starting on 1/28/2026, the OnePACS Study Retriever is a standalone download. Click the Download OnePacs Study Retriever link on the Downloads page and follow the download instructions.

OP_Install_DownloadStudyViewer.png

Configure Aycan for OnePACS

In the OnePacs Study Retriever's Download Manager window, click Preferences.

OP_Install_Aycan_DownloadPreferences.png

Click the Destinations tab and select the Active checkbox for Aycan. Click the radio button in the Aycan row of the Set as Viewer column to set Aycan as the default study viewer for OnePACS. Select Networked Viewer (Aycan™, XML-RPC)  from the Viewer Type drop-down list. Click Configure.

OP_Install_Aycan_Configure.png

The XML-RPC Settings window displays. Enter 8080 into the Port field and click OK. In the Preferences - OnePACS Study Retriever window, click OK to save the configuration. 

OP_Install_Aycan_PortConfig.png

Open the Aycan workstation and navigate to Aycan workstation > Settings in the Apple navigation bar.

OP_Install_Aycan_WorkstationSettings.png

In the DICOM section of the Preferences window, select Listener. 

OP_Install_Aycan_Listener.png

Select the Activate the HTTP XML-RPC SOAP Server of aycan workstation checkbox.

OP_Install_Aycan_ActivateHTTP.png

Select a study to view in OnePACS and verify that the study opens in the Aycan viewer.

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