| Question 1: Respiratory motion is corrected by adjusting MLC sinograms and jaws on the Radixact delivery system using a model based on: |
| Reference: | Schnarr E, Beneke M, Casey D, et al. Feasibility of real-time motion management with helical tomotherapy [published online ahead of print 2018/02/07]. Med Phys. 2018;45(4):1329-1337 |
| Choice A: | internal target motion visualized with sequential kV images and IR camera LED signal. |
| Choice B: | pre-treatment MVCT image registration with periodic orthogonal kV images. |
| Choice C: | continuous MVCT monitoring of internal targets correlated with external surrogate. |
| Choice D: | 4DCT motion acquired at time of simulation and compared to IR camera LED signal. |
| Question 2: Which of the following is the TG-306 recommended tolerance for tomotherapy field width (FWHM): |
| Reference: | Urso, Patrizia, Nathan A. Corradini, and Cristina Vite. "Accuracy of Tomo EDGE dynamic jaw field widths." Journal of applied clinical medical physics 19.5 (2018): 761-766. |
| Choice A: | within 1% of the nominal field width for both symmetric and asymmetric jaws |
| Choice B: | within 2% of the nominal field with for both symmetric and asymmetric jaws |
| Choice C: | within 1% of nominal field width for symmetric jaws and 2% for asymmetric jaws. |
| Choice D: | within 1% of nominal field width for symmetric jaws and 0.5mm for asymmetric jaws. |
| Choice E: | within 1% of nominal field width for symmetric jaws and 0.2mm for asymmetric jaws. |
| Question 3: The dosimetric impact due to the modelling of tomotherapy MLC behavior (latency curve) can be as large as: |
| Reference: | Hui C, Chen Q, Khandelwal S, Neal B, Watkins W. Detection of dose delivery variations on TomoTherapy using on-board detector based verification. Phys Med Biol. 2018;63(14):14NT02. |
| Choice A: | 1% |
| Choice B: | 3% |
| Choice C: | 5% |
| Choice D: | >5% and <10% |
| Choice E: | >10% |
| Question 4: TG-306 recommends gamma pass rate for patient specific QA: |
| Reference: | Miften M, Olch A, Mihailidis D, et al. Tolerance limits and methodologies for IMRT measurement‐based verification QA: Recommendations of AAPM Task Group No. 218. Medical physics. 2018;45(4):e53-e83 |
| Choice A: | Gamma ≥ 90% with dose difference/DTA criteria at 3%/3mm and low dose threshold at 10% |
| Choice B: | Gamma ≥ 95% with dose difference/DTA criteria at 3%/2mm and a dose threshold at 10% |
| Choice C: | Gamma ≥ 90% with dose difference/DTA criteria 3%/2mm and a 10% dose threshold |
| Choice D: | Gamma ≥ 95% with dose difference/DTA criteria at 3%/2mm and a dose threshold at 30% |
| Question 5: TG 306 recommends MVCT CT number calibration procedure to be performed, if MVCT images are used for dose calculations, at frequency of |
| Reference: | Thomas SJ, Romanchikova M, Harrison K, et al. Recalculation of dose for each fraction of treatment on TomoTherapy. The British journal of radiology. 2016;89(1059):20150770. |
| Choice A: | Daily |
| Choice B: | Weekly |
| Choice C: | Monthly |
| Choice D: | Yearly |
| Question 6: The quantitative outcome of an FMEA is the calculation of a: |
| Reference: | Huq, M.S., Fraass, B.A., Dunscombe, P.B., et al. The report of Task Group 100 of the AAPM: Application of risk analysis methods to radiation therapy quality management. Med Phys. 2016;43(7):4209-4262. |
| Choice A: | RCA (Risk Calculation Assessment) score which includes the assignment of scores for occurrence, vulnerability, and detectability. |
| Choice B: | RPN (Risk Priority Number) score which includes the assignment of scores for occurrence, severity, and detectability. |
| Choice C: | FM (Failure Mode) score which includes the assignment of scores for incidence, severity, and detectability. |
| Choice D: | PM (Process Map) score which includes the assignment of scores for occurrence, severity, and obviousness. |
