Please fill out the credentialing status inquiry form to let us know that you would like to be credentialed for this protocol.

Institutions that were previously credentialed to participate in another protocol will be notified if any additional credentialing steps are required.

This trial will utilize TRIAD for dosimetry digital treatment data submission. TRIAD is the American College of Radiology’s (ACR) image exchange application and it is used by the RTOG. See section 5.5 of the protocol for information on installing TRIAD.

For this study, IMRT is mandatory for photon treatment, and IGRT is optional,unless reduced margins are being used.

In order to complete the IMRT credentialing process the following items must be completed:

• All participants are asked to complete the IROC Houston Facility Questionnaires.

• Irradiate the IROC Houston's H&N phantom. Please fill in the request form online.

• Successfully complete the boney IGRT credentialing requirements. Please also complete the IGRT questionnaire.Note: IGRT credentialing is ONLY required for reduced margins.

Note:

Institutions that are credentialed to participate in other RTOG IMRT protocols requiring an IMRT H&N phantom irradiation need not repeat the phantom irradiation for credentialing for this protocol.