| Question 1: The pancreas is divided into |
| Reference: | Reference: Heerkens HD, Hall WA, Li XA, Knechtges P, Dalah E, Paulson ES, et al. Recommendations for MRI-based contouring of gross tumor volume and organs at risk for radiation therapy of pancreatic cancer. Pract Radiat Oncol. 2017;7(2):126-36. |
| Choice A: | Head and body |
| Choice B: | Head, body, and tail |
| Choice C: | Head, neck, body, and tail |
| Choice D: | Head, uncinate process, neck, body, and tail |
| Choice E: | none of the above |
| Question 2: A standardized contouring workflow for pancreas cancer deliniation should include: |
| Reference: | Reference: Heerkens HD, Hall WA, Li XA, Knechtges P, Dalah E, Paulson ES, et al. Recommendations for MRI-based contouring of gross tumor volume and organs at risk for radiation therapy of pancreatic cancer. Pract Radiat Oncol. 2017;7(2):126-36. |
| Choice A: | CT with and without IV contrast |
| Choice B: | T2 W |
| Choice C: | T1 W |
| Choice D: | T1 arterial/ T1 venous (post contrast) |
| Choice E: | All of the above |
| Question 3: The HR CTV for cervical cancer brachytherapy: |
| Reference: | Reference: Haie-Meder C, Potter R, Van Limbergen E, et al. Recommendations for Gynecological (GYN) GEC-ESTRO Working Group (I): concepts and terms in 3D image-based 3D treatment planning in cervix cancer brachytherapy with emphasis on MRI assessment of GTV and CTV. Radiother Oncol. 2005; 74:235–245. |
| Choice A: | Is a replacement for Point A |
| Choice B: | Includes the entire cervix, GTV and any extra-cervical extension of disease |
| Choice C: | Defined best on CT rather than MRI |
| Choice D: | Is not used for dose specification |
| Choice E: | None of the above |
| Question 4: Which of the following is true for CT based prostate planning using MR as a secondary imaging modality? |
| Reference: | Reference: Hanvey, S., et al. (2012). "The influence of MRI scan position on image registration accuracy, target delineation and calculated dose in prostatic radiotherapy." Br J Radiol 85(1020): e1256-1262. |
| Choice A: | MR should always be registered to the CT with respect to the bones |
| Choice B: | MR should be used to delineate all the structures including target volumes as well as normal tissue anatomy |
| Choice C: | MRs in either diagnostic or simulation position will give similar contouring accuracy |
| Choice D: | b, c |
| Choice E: | none of the above |
| Question 5: Which of the following statement concerning MR-only planning is true |
| Reference: | Reference: Tyagi N, Fontenla S, Zelefsky M, Chong-Ton M, Ostergren K, Shah N, Warner L, Kadbi M, Mechalakos J and Hunt M, Clinical workflow for MR-only simulation and planning in prostate. Radiat Oncol 2017 Jul 17;12(1):119 |
| Choice A: | Patient motion is not a concern for MR-guided RT because patients are in an immobilization mask |
| Choice B: | Commercial solution for synthetic CT generation does not exist for bilateral hip-implant patients |
| Choice C: | An MR-linac system with 70 cm bore size can give geometrically accurate images within the entire bore size. |
| Choice D: | none of the above |
| Question 6: Which of the following is true regarding electron return effect (ERE) in the presence of 1.5T magnetic field |
| Reference: | Reference: Ahmad SB, Sarfehnia A, Paudel MR, Kim A, Hissoiny S, Sahgal A and Kelle B, Evaluation of a commercial MRI Linac based Monte Carlo dose calculation algorithm with GEANT4. Med Phys 206 43(2), 897-907 |
| Choice A: | ERE results in hot spots when going from high density to low density |
| Choice B: | ERE results in cold spots when going from low density to high density |
| Choice C: | ERE results in hot spots at the ext dose if the beam exists into a low-density material |
| Choice D: | All of the above |
