RTOG Nasopharyngeal H-0225 Dry Run Guidelines

• Digital Data
• Hard Copy Data
• DVH Data and Testing

IMAGE-GUIDED THERAPY CENTER

The Dry Run test  for this study is required to be performed using a CT image data set as compliant with protocol requirements as possible. Successful completion of this test and a complete Facility Questionnaire submission are required to obtain credentials to participate in this study.

Following are the requirements/guidelines for successful completion of a patient data submission Dry Run test for RTOG IMRT Nasopharyngeal Protocol H-0225:

One of the most important aspects of the Dry Run test is to fully understand the protocol specified prescription and properly use this prescription in your Dry Run treatment plan(s) and subsequent patient treatment plan(s). The prescription for this study has both minimum coverage requirements as well as PTV overdose and critical structure overdose criteria.

Using the format documented in Specification for Tape/Network Format for Exchange of Treatment Planning Data, Version 3.20 , or later, the following data must be submitted to the Image-Guided Therapy Center:

There should be reasonable agreement between individual participating institutions's DVH computations and those of the Image-Guided Therapy Center. Therefore, any discrepancy (between submitting institution and ITC) in excess of +5% ( or +10 cc)in total volume or +5% (relative to the absolute structure volume) of the volume calculated to be at or above the appropriate TD 5/5 dose for the particular structure will need to be resolved prior to successfully completing the Dry Run Test.

NOTE: There is no requirement that the patient whose data is used for the Dry Run test be treated according to H-0225. This test set can be from a data set for a patient who was previously seen and/or treated (in some other fashion). The only requirement is that the CT scan, tumor /target volumes and critical normal structure contours be made compliant with the protocol requirements and that protocol compliant treatment plans be generated and the appropriate data submitted to the Image-Guided Therapy Center. Variation of CT scan spacing or range is allowed as long as all treated areas are completely encompassed in the scan set.  All patient identifying data for the Dry Run test data must be removed before submission to protect patient confidentiality.

No films are required other than DRRs as identified in the digital submission items above as the patient's treatment is not required to be per protocol.