Teaching files are valuable training tools in radiology and other imaging specialties. Many residents are required to create and maintain teaching files and many experienced practitioners keep files of interesting cases for their own reference and to share with colleagues.

Participation in clinical trials is a growing need and both a potential source of revenue and a driver of quality improvement.

In order to accomplish these tasks efficiently, a user must be able to:

• Flag appropriate images and add supplemental information
• Anonymize image studies, often using reversible anonymization (pseudonymization) in research trials
• Route the study to the appropriate destination (a teaching file system or clinical trial repository)

DICOM standards provide the essential mechanisms for performing these tasks.

(Source IHE web site)

For more details please follow the below link

https://wiki.ihe.net/index.php/Teaching_File_and_Clinical_Trial_Export