2020 Joint AAPM | COMP Virtual Meeting
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Session Title: Multiparametic MRI for Precision Radiotherapy: From Physics to Clinical Applications
Question 1: Which of the following statements is INCORRECT?
Reference:Leidholdt, E. M., Seibert, J. A., Bushberg, J. T., Boone, J. M. (2002). The Essential Physics of Medical Imaging. United Kingdom: Lippincott Williams & Wilkins.
Choice A:Relative contrast in T1, T2 weighted images depends on pulse sequences
Choice B:Relative contrast in T1, T2 weighted images depends on inherent tissues T1, T2 values
Choice C:T1, T2 weighted images are routinely used in the clinic for tumor delineation
Choice D:DWI imaging is just another form of T1, T2 weighted imaging
Question 2: Which of the following statements is INCORRECT? Diffusion weighted imaging:
Reference:R Bammer, Basic Principles of Diffusion-Weighted Imaging, Eur J Radiol. 2003 Mar;45(3):169-84. doi: 10.1016/s0720-048x(02)00303-0.
Choice A:Primarily measures the water molecular motion in tissue
Choice B:is a NOT a measure of the respiratory motion
Choice C:does not need QA because DWI is quantitative already
Choice D:in tumor response to radiation, diffusion should increase
Question 3: Prostate Imaging - Reporting and Data System Version 2 (PI-RADS™ v2) provides recommendations on prostate diagnosis using multi-parametric MRI. What MRI field strengths does this document recommend using for prostate mpMRI?
Reference:Weinreb, J.C., Barentsz, J.O., Choyke, P.L., Cornud, F., Haider, M.A., Macura, K.J., Margolis, D., Schnall, M.D., Shtern, F., Tempany, C.M. and Thoeny, H.C., 2016. PI-RADS prostate imaging–reporting and data system: 2015, version 2. European urology, 69(1), pp.16-40.
Choice A:3 Tesla
Choice B:1.5 Tesla
Choice C:Greater than or equal to 1.5 Tesla
Choice D:Less than 1.5 Tesla
Question 4: Which of the following statements is INCORRECT about multi-parametric MRI?
Reference:Kumar V, Bora GS, Kumar R, Jagannathan NR. Multiparametric (mp) MRI of prostate cancer. Prog Nucl Magn Reson Spectrosc. 2018;105:23-40.
Choice A:Uses same sequences for different anatomical sites
Choice B:Provides more accurate tumor assessment than conventional MRI
Choice C:Brings challenges of analyzing and displaying large amount of data
Choice D:Provides improved reproducibility and reliability than conventional MRI
Question 5: Which type of MR image is UNLIKELY to be acquired in simultaneous multi-parametric MRI?
Reference:Amthor T, Doneva M, Koken P, Sommer K, Meineke J, Bornert P. Magnetic Resonance Fingerprinting with short relaxation intervals. Magn Reson Imaging. 2017;41:22-28.
Choice A:T1-weighted
Choice B:T2-weighted
Choice C:Proton density weighted
Choice D:Dynamic contrast enhanced
Question 6: Which one of the following is UNLIKELY to be a radiotherapy application for multi-parametric MRI?
Reference:Citak-Er F, Firat Z, Kovanlikaya I, Ture U, Ozturk-Isik E. Machine-learning in grading of gliomas based on multi-parametric magnetic resonance imaging at 3T. Computers in Biology and Medicine. 2018;99:154-160.
Choice A:Differentiate tumor with hemorrhage, infection, edema, or micro-infiltration
Choice B:Treatment assessment
Choice C:Generate synthetic CT
Choice D:Real-time treatment monitoring
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