There is an open source PACS dcm4chee which can also be accessed via Read BI database. You may notice that the lib folder includes 5 dcm4che*.jar files needed to access the dcm4chee database. This database has no connection to the BI database, but the Read BI database provides a convenient method to input the dcm4chee data into Fiji.
Reading the same patient over the LAN from the dcm4chee looks like

These studies can of course be read in the browser but the purpose here is to import them to Fiji. In Read BI database this will look like

Notice that the second patient has no teaching entry since teaching studies is a private feature of the BI database. Likewise the other features in the Report tab are not supported in dcm4chee.
The setup of the database is shown below. The default port of 11112 is used and the data path points to the dcm4chee archive directory. Likewise dcm4chee is chosen in the combo box.

If there is only a single dcm4chee, it would be possible to use DCM4CHEE@localhost:11112 instead of the LAN version DCM4CHEE@192.168.1.100:11112 suggested above. However even on a single system one can query the database through the LAN. On all systems the actual LAN address will be the same: the system where the mySQL is physically located.
In the default dcm4chee setup, it can be the case where localhost works and the LAN address fails with an error like Access denied for user 'pacs'@'%' to database 'pacsdb'. In such a case download createBIdatabase, go to the Backup tab to set the proper address, then to the Create tab to enter the root password and then to the Dcm4chee tab. (Note: the proper address is the address of the BI database, not the Dcm4chee database. They are both located on the same mySQL server.)

Press the Set up user button. It will become disabled to signify that the changes have been made, and to prevent you from pressing it twice. You should probably reboot the computer in order to restart mySQL. After that the LAN connection should work.
For more details see Set up BI database or return to Help.
Wiki: BI Database
Wiki: Options
Wiki: Pet Ct Viewer Help
Wiki: Reading studies
Wiki: Reports