Administered by the American College of Radiology




TRIAD (Transfer of Images and Data) is a Web-based application that provides secure, efficient, and robust transmission of medical images and related electronic data. Developed and maintained by the American College of Radiology (ACR) with a focus on user-friendliness, TRIAD supports the exchange of electronic images and data for the multi-center clinical trials and other clinical research projects. Also, TRIAD has been adopted for use by the ACR’s accreditation programs and National Radiology Data Registry.

A new TRIAD website has recently launched. Visit to learn more about how this tool supports imaging and radiation quality assurance for the NCI National Clinical Trials Network.

Quick Links to TRIAD Resources

CTEP-IAM Account Registration Link

TRIAD User Guide

TRIAD Installation


IMPORTANT Message for TRIAD users:



ACR TRIAD software v4.10 will require the following prerequisites:

*Note:  Other versions of Visual C++ can be on the workstation.  However, Visual C++ 2010 and Visual C++  2012 must be on the workstation in order for TRIAD to run.

Prior to the release date, we strongly suggest checking your system to make sure that these required components are installed.  All users currently running TRIAD will be prompted to upgrade to the latest release version 4.9. 

Administrative privileges are required to install or upgrade these components.


Contact TRIAD-Support:

T: 703.390.9858 or,


TRIAD Support is available from Monday to Friday between 8am - 5pm ET