How long are TRIOS cases stored in the system (system cleanup)?

General overview

Each TRIOS case consists of 2 parts:

1. Scan streams - 3D raw scan data output that is converted into DCM file format after post processing.
2. Case itself with order form and patient information. If a case was sent or post-processed, it would also contain DCM files.

A DCM file is an image file saved in the Digital Imaging and Communications in Medicine (DICOM) image format. It stores a medical image and may also include patient information to pair the image with the patient.

Cases and patients are never deleted from the system. If a user post-processes or sends a case, it will contain scans in the DCM which cannot be edited, but the case can be sent as many times as needed.

Streams allow an order to be edited, and are not considered patient data, therefore software can automatically delete them due to their large size. Because TRIOS on Unite can be set up in a server/client installation, streams are only saved on the PC where the case was scanned. Streams must be post-processed before the case can be opened on another computer or exported as a .3oxz file.

Streams cleanup

This feature is to help the customer not to run out of hard drive space. There are two procedures of streams cleanup:

1. Automatic cleanup will be executed:
   • for all POST-PROCESSED cases older than 45 days;
   • for all NON-POSTPROCESSED older than 90 days;
   • for POST-PROCESSED cases created earlier than 45 days ago if there is less than 15 GB of free space on the system drive (starting from the oldest case and till the latest one until there is enough free space).
2. Manual cleanup window activates on the Scanning page when disk goes below 15 GB of free space and automatic cleanup was unable to free up enough space:
   • It will delete STREAMS only
   • This window will give the user the option to delete recovery data (streams), older than 1-3 weeks.
   • The oldest streams to preserve can be chosen up to 2 months back (if the free disc space allows it).

Protection from cleanup

For complex or long cases that may need revisiting the "Protect from cleanup" option is available, however, this will not protect the cases from manual cleanup. The protect from clean up option can be done from the cases browser or the scan page:

Contact 3Shape Support if you have any further questions.

For full information on correct usage consult the official Safety and Setup Guide and the most current Manual.