The Use Of Clinical Audit To Monitor The Transfer Of Responsibility For Verification Of Electronic Portal Images

The approval of portal verification images is an important component in the quality assurance of radiation therapy delivery. However, the process of approval can be cumbersome and result in delays. The time spent by staff to ensure that the approval process is completed in an appropriate fashion, is time taken away from other patient related activities. In addition, evolving changes in practice are increasing the requirement that portal verification image approval be done at the time of treatment. This process will inevitably require immediate action by radiation therapists (RT's).

In 2003, a process was initiated to transfer the responsibility for the approval of portal images to RT's. Traditionally, the radiation oncologist had assumed this responsibility. Once the change in practice was implemented, a clinical audit process was put in place to monitor the results. The use of the clinical audit has been an effective learning tool for critical reflection on practice. The clinical audit has shown that the responsibility transfer has been successful and resulted in a more efficient approval of portal images.