Abstract
Purpose: To explore a novel patient-dose DVH-based method for pretreatment dose quality assurance tests. Methods: 20 IMRT plans for head-and-neck cancer patients were used. A comparison was performed between the planned dose distributions, the computed, and the reconstructed ones using the gamma-index (GI) method. The GI analysis was performed using both the 3%/3 mm and the 2%/2 mm criteria. Results: No significant DVH-deviation was observed. Considering the 3%/3 mm criteria the mean GI% <1 for the body and structures was significantly higher compared to 2%/2 mm criteria. Conclusions: Our results underline the importance of QA-methods based on DVH-metrics to predict the impact of delivered dose.
Original language | English |
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Pages (from-to) | 85-91 |
Number of pages | 7 |
Journal | Cancer Investigation |
Volume | 32 |
Issue number | 3 |
DOIs | |
Publication status | Published - Mar 2014 |
Keywords
- 3D quality assurance
- COMPASS system
- Head and neck
- IMRT
ASJC Scopus subject areas
- Cancer Research
- Oncology