![]() ![]() Methods: Beam data was configured for Varian Eclipse AAA algorithm using the GBD provided by the vendor. Purpose: To use end-to-end testing to validate a 6 MV high dose rate photon beam, configured for Eclipse AAA algorithm using Golden Beam Data (GBD), for SBRT treatments using RapidArc. This test can be used as a first step in beam model acceptance for clinical use. The end-to-end proved efficient, showing excellent agreement between planned and delivered dose evidencing strong consistency of the whole process from imaging through planning to delivery. Conclusion: Implementation of a simple and reliable quality assurance tool was accomplished. ![]() Planar doses pass gamma 3% 3mm in all cases and 2% 2mm for VMAT plans. electron density table were checked for CT-scanners more ยป used. 2D dose distributions were acquired using MapCheck and Varian aS1000 EPID.Gamma analysis was performed for evaluation of 2D dose distribution agreement using MapCheck software and Varian Portal Dosimetry Application.Varian high energy Clinacs Trilogy, 2100C/CD, 2000CR and low energy 6X/EX where tested.TPS-CT# vs. An Exradin A1SL chamber is used with a Keithley 35617EBS electrometer for point dose measurements in the phantom. Using Varian Eclipse 10.0 and Elekta XiO 4.50 planning systems, IMRT, RapidArc and 3DCRT with hard and dynamic wedges plans were planned on the phantom and tested. An ad hoc 16 cm diameter PMMA phantom was constructed with one central and four peripheral bores that can accommodate calibrated electron density inserts. The test includes analysis of point dose and planar dose distributions agreement between TPS calculated and measured dose. Methods: A test involving all steps of the radiation therapy: imaging, planning and delivery process was designed. To establish an internal standard for machine commissioning acceptance. Purpose: To implement an end-to-end QA test of the radiation therapy imaging, planning and delivery process, aimed to assess the dosimetric agreement accuracy between planned and delivered treatment, in order to identify and correct possible sources of deviation. ![]()
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