Your Most Valuable QA and Dosimetry Tools

QA & Dosimetry News
Return to QADN

Video: Why You Should Use Transit Dosimetry In Your Clinic

September 21, 2015

Jennifer Hamilton M.E. // Medical Physicist



Over the past year, I've spoken with many physicists about PerFRACTION™, our new transit dosimetry software.

Many are intrigued, and everyone is interested in the peace of mind that would come from automatically monitoring patients' treatments. However, we all have limited time, and have to decide the most effective QA tasks on which to spend that time.

Eric Ford and his colleagues at the University of Washington have done excellent work on this issue*. They found that In-Vivo QA of just the first fraction of treatments offers the chance to catch the majority of common treatment errors.

Now, for those of you who are still skeptical, and I must admit, I probably would have been one of you, there are a few questions and concerns I'd like to address:

  1. Transit dosimetry isn't necessary.
  2. It will disrupt my workflow.
  3. So I caught an error with the system, now what do I do with this information?
  4. This will damage my EPID
  5. That's all well and good, but my administrator will never buy into it


Click and watch the video above to hear my responses.


*Bojechko C, Phillips M, Kalet A, Ford E.C. Department of Radiation Oncology, University of Washington "A quantification of the effectiveness of EPID dosimetry and software-based plan verification systems in detecting incidents in radiotherapy" Med Phys 42(9), Sept 2015 


Return to QADN