2017 AAPM Annual Meeting
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Session Title: Improving Dose Prescriptions for Safety, Reporting, and Clinical Guideline Consistency
Question 1: The standardized order which should be used when describing the dose aspects of a treatment prescription is:
Reference:SB Evans, BA Fraass, P Berner, KS Collins, T Nurushev, MJ O’Neill, J Zeng, LB Marks: Standardizing dose prescriptions: An ASTRO white paper. PRO 6: e369-e381, 2016.
Choice A:Total Dose –> No of Fraction -> Dose/Fraction.
Choice B:No of Fraction -> Dose/Fraction –> Total Dose.
Choice C:Dose/Fraction –> No of Fraction -> Total Dose.
Choice D:Any order is acceptable.
Question 2: The recommended dose units which should be used for any treatment prescription are:
Reference:SB Evans, BA Fraass, P Berner, KS Collins, T Nurushev, MJ O’Neill, J Zeng, LB Marks: Standardizing dose prescriptions: An ASTRO white paper. PRO 6: e369-e381, 2016.
Choice A:cGy.
Choice B:Gy.
Choice C:A & B.
Choice D:Either.
Question 3: ICRU-83 is report that deals with:
Reference:ICRU-83, ICRU Report 83. Prescribing, Recording, and Reporting Intensity-Modulated Photon-Beam Therapy (IMRT) International Commission on Radiation Units and Measurements; Bethesda, MD: 2010.
Choice A:Defining GTV, CTV, PTV.
Choice B:Providing reference point for dose prescription.
Choice C:Proving information on the motion and margin.
Choice D:None of all.
Question 4: What was the reference, ICRU-83 adopted for the IMRT dose prescription?
Reference:Das IJ, Cheng CW, Chopra KL, et al. Intensity-modulated radiation therapy dose prescription, recording and delivery: Patterns of variability among institutions and planning systems. J Natl Cancer Inst. 100:300-307, 2008.
Choice A:Mijnheer et al, Radiother Oncol, 1987.
Choice B:ICRU-62, 1999.
Choice C:ICRU-78, 2007.
Choice D:Das et al, J Natl Cancer Inst, 2008.
Question 5: IMRT dose prescription and reporting information can be acquired from ICRU-83. Where does ICRU recommend the dose be prescribed?
Reference:ICRU-83, ICRU Report 83. Prescribing, Recording, and Reporting Intensity-Modulated Photon-Beam Therapy (IMRT) International Commission on Radiation Units and Measurements; Bethesda, MD: 2010.
Choice A:Isocenter.
Choice B:D95.
Choice C:D50.
Choice D:D2.
Question 6: What is the most common dose prescription practiced in IMRT today?
Reference:Das, I.J.; Andersen A; Chen, Z.; Dimofte, A.; Glatstein, E.; Hoisak, J.;Huang, L.; Langer, M.P.; Lee, C.; Pacella, M.; Popple, R.A.; Rice, R.; Smilowitz, J.; Sponseller, P.; Zhu, T. State of Dose Prescription and Compliance to International Standard (ICRU-83) in Intensity Modulated Radiation Therapy Among Academic Institutions Practical Radiation Oncology 7(2):e145-e155; 2017. http://dx.doi.org/10.1016/j.prro.2016.11.003
Choice A:95%
Choice B:98%
Choice C:100%
Choice D:105%
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