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% |