| Question 1: 1. How often is an end-to-end test recommended for SBRT treatment units? |
| Reference: | AAPM-RSS Medical Physics Practice Guideline 9.a. for SRS-SBRT. Halvorsen et al 2017. JACMP 18(5) pp10-21 |
| Choice A: | At commissioning only |
| Choice B: | Quarterly |
| Choice C: | Semi-annually |
| Choice D: | Annually |
| Question 2: 2. What QA tests should be considered for intrafractional motion monitoring systems? |
| Reference: | Real-time intrafraction motion monitoring in external beam radiotherapy. Bertholet et al 2019. Phys Med Biol 64 (15) TR01 |
| Choice A: | Localization accuracy only |
| Choice B: | Latency only |
| Choice C: | Localization accuracy and treatment interruption accuracy |
| Choice D: | Localization accuracy, treatment interruption accuracy and latency |
| Question 3: Using daily vs. weekly IGRT for prostate cancer results in: |
| Reference: | de Crevoisier et al. “Daily versus weekly prostate cancer image guided radiation therapy: phase 3 multicenter randomized trial.” International Journal of Radiation Oncology* Biology* Physics 102.5 (2018): 1420-1429. |
| Choice A: | Decreased rectal toxicity and decreased local control |
| Choice B: | Decreased rectal toxicity and increased local control |
| Choice C: | Increased rectal toxicity and decreased local control |
| Choice D: | Increased rectal toxicity and increased local control |
| Question 4: Real-time adaptive radiation therapy requires: |
| Reference: | Dieterich et al. “Locating and targeting moving tumors with radiation beams.” Medical Physics 35.12 (2008): 5684-5694. |
| Choice A: | A method to detect target motion in real-time |
| Choice B: | A method to actuate beam-target alignment in real time |
| Choice C: | A and B |
| Choice D: | A or B |
| Question 5: MV imaging during treatment with a conventional linac: |
| Reference: | Real-time intrafraction motion monitoring in external beam radiotherapy, J. Bertholet et al. Phys Med Biol, Vol 64, 15TR01, 2019. |
| Choice A: | Has better contrast than kV imaging |
| Choice B: | Adds imaging dose to the patient |
| Choice C: | Is affected by treatment beam modulation |
| Choice D: | None of the above |
| Question 6: Real-time three-dimensional target localization with a conventional linac: |
| Reference: | First experience with markerless online 3D spine position monitoring during SBRT delivery using a conventional linac, C. Hazelaar et al. Int J Radiother Onc Biol Phys, Vol 101, Issue 5, pp 1253-1258, 2018. |
| Choice A: | Requires implantation of fiducial markers |
| Choice B: | Requires MV portal imaging |
| Choice C: | Requires a real-time respiratory signal |
| Choice D: | Can be done with the kV imager alone |
