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2008, vol. 16, br. 1-2, str. 7-9
The quality assurance of Varian enhanced dynamic wedges using Daily QA Check 2
(naslov ne postoji na srpskom)
Institut za onkologiju Vojvodine, Sremska Kamenica

e-adresalrutonjski@nspoint.net
Sažetak
(ne postoji na srpskom)
Background: Clinical implementation of enhanced dynamic wedges (EDW) requires, as any other dynamic treatment, very serious quality assurance (QA) program. In this work, we presented the results of six-month evaluation of Varian enhanced dynamic wedges and detailed QA program for those wedges. Methods: The Sun Nuclear Daily QA Check 2 was used for QA purpose. The QA program included daily and monthly checks. The daily QA program included central axis dose and wedge angle measurements. Within the monthly QA program wedge factors and delivered STTs from the Dynalog files were checked. Results: Our daily QA measurements of dose and wedge angle showed the reproducibility error less than ±1.5%. On the other hand, monthly QA measurements of wedge factor the reproducibility error was less than ±0.5%. The monthly QA check of delivered STTs showed excellent agreement. Conclusion: During the six-month quality control we observed a good reproducibility in the delivery of EDW treatment. Also, the Sun Nuclear Daily QA Check 2 showed to be very satisfying in QA of the EDW treatment.
Reference
*** (2002) C-Series Clinac: Enhanced dynamic wedge implementation guide. Palo Alto, California: Varian Medical systems
*** (2001) User's guide: Daily QA check 2, model 1092. Melbourne, Florida: Sun Nuclear Corporation
Alaei, P., Higgins, P.D. (2006) Performance evaluation and quality assurance of Varian enhanced dynamic wedges. Journal of Applied Clinical Medical Physics, 7(1): 14
Beavis, A.W., Weston, S.J., Whitton, V.J. (1996) Implementation of the Varian EDW into a commercial RTP system. Phys Med Biol, 41(9): 1691-704
Klein, E.E., Gerber, R., Zhu, X.R., Oehmke, F., Purdy, J.A. (1998) Multiple machine implementation of enhanced dynamic wedge. Int J Radiat Oncol Biol Phys, 40(4): 977-85
Koken, P.W., Heukelom, S., Cuijpers, J.P. (2003) On the practice of the clinical implementation of enhanced dynamic wedges. Med Dosim, 28(1): 13-9
Leavitt, D.D., Huntzinger, C., Etmektzoglou, T. (1997) Dynamic collimator and dose rate control: Enabling technology for enhanced dynamic wedge. Med Dosim, 22(3): 167-70
Moeller, J.H., Leavitt, D.D., Klein, E. (1997) The quality assurance of enhanced dynamic wedges. Med Dosim, 22(3): 241-6
 

O članku

jezik rada: engleski
vrsta rada: članak
DOI: 10.2298/AOO0802007R
objavljen u SCIndeksu: 20.10.2008.

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