Quality Assurance in Intensity Modulated Radiotherapy: Eight-Year Experience
Author Information
Author(s): Fenoglietto Pascal, Laliberté Benoit, Aillères Norbert, Riou Olivier, Dubois Jean-Bernard, Azria David
Primary Institution: CRLC Val d'Aurelle-Paul Lamarque, Montpellier, France
Hypothesis
A single phase treatment would provide the potential to reduce workload and improve radiotherapy delivery efficiency.
Conclusion
More than 3500 beams were found to be within the limits defined as validated for treatment between 2001 and 2008.
Supporting Evidence
- The average difference between measured and computed doses was within 3%.
- 99% of prostate fields passed the gamma index criteria.
- IMRT has been the standard treatment for post-prostatectomy radiotherapy since 2008.
Takeaway
This study checked the accuracy of radiation treatments for cancer patients over eight years, ensuring they received the right amount of radiation.
Methodology
Treatment plans were validated using ionization chambers and film dosimetry under a linear accelerator.
Limitations
No gold standard for IMRT plan validation was established, and the study relied on conventional QA methods.
Participant Demographics
Patients treated included those with prostate, head and neck, and anal canal carcinoma.
Digital Object Identifier (DOI)
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