2021 AAPM Virtual 63rd Annual Meeting
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Session Title: Artificial Intelligence in the Clinic - Is It Going to Help or Hurt Our Productivity?
Question 1: In knowledge-based dose-volume histogram (DVH) prediction, DVHs of OARs for a resultant plan can be correlated with specific:
Reference:Reference: Ma M, et al: Dosimetric features‐driven machine learning model for DVH prediction in VMAT treatment planning. Medical Physics, 46(2), 857-867, 2019.
Choice A:Geometric features
Choice B:Anatomical features
Choice C:Dosimetric features
Choice D:All above
Question 2: Which of the following is true for script-based automatic plan check? A script-based automatic planning check tool can check:
Reference:Reference: Liu S et al: Optimizing efficiency and safety in external beam radiotherapy using automated plan check (APC) tool and six sigma methodology. JCAMP. 20, 8: 56–64, 2019
Choice A:Dose, fractionation and energy consistence between plan and prescription
Choice B:Plan Quality
Choice C:Collision Clearance
Choice D:All above
Question 3: 1. Which metric best correlates with time-saving during contouring
Reference:Reference: Femke Vaassen, Colien Hazelaar, Ana Vaniqui, Mark Gooding, Brent van der Heyden, Richard Canters, Wouter van Elmpt, Evaluation of measures for assessing time-saving of automatic organ-at-risk segmentation in radiotherapy, Physics and Imaging in Radiation Oncology, Volume 13, 2020, Pages 1-6, ISSN 2405-6316, https://doi.org/10.1016/j.phro.2019.12.001.
Choice A:Dice Similarity
Choice B:95% Hausdorff
Choice C:Added Path Length
Choice D:Mutual Information
Question 4: Atlas-based image segmentation requires
Reference:Reference: P. Aljabar, R.A. Heckemann, A. Hammers, J.V. Hajnal, D. Rueckert, Multi-atlas based segmentation of brain images: Atlas selection and its effect on accuracy, NeuroImage, Volume 46, Issue 3, 2009, Pages 726-738, ISSN 1053-8119, https://doi.org/10.1016/j.neuroimage.2009.02.018.
Choice A:large training data
Choice B:optimal template selection
Choice C:training data augmentation
Choice D:intensive convolution operations
Question 5: Avoid the following for reproducible application of inference models
Reference:Reference: Matelsky, J., Kiar, G., Johnson, E. et al. Container-Based Clinical Solutions for Portable and Reproducible Image Analysis. J Digit Imaging 31, 315–320 (2018). https://doi.org/10.1007/s10278-018-0089-4
Choice A:Upgrade to the latest versions of model dependencies
Choice B:Package dependencies used while training in a conda environment.
Choice C:Package dependencies used while training in a Singularity or Docker container
Choice D:Run functional tests on any system change
Question 6: AAPM Task Group 275: Strategies for Effective Physics Plan and Chart Review in Radiation Therapy reports that 3 out of the top 10 failure modes for initial plan/chart review of photon/electron EBRT are related to errors in contouring and margins used during treatment planning
Reference:Ref: Ford, Eric, et al. "Strategies for effective physics plan and chart review in radiation therapy: report of AAPM Task Group 275." Medical physics 47.6 (2020): e236-e272.
Choice A:True
Choice B:False
Question 7: Current state of the art in auto-segmentation is achieved through:
Reference:Ref: Cardenas, Carlos E., et al. "Advances in auto-segmentation." Seminars in radiation oncology. Vol. 29. No. 3. WB Saunders, 2019.
Choice A:Intensity Thresholding
Choice B:Atlas-based Segmentation
Choice C:Deep learning-based Segmentation
Choice D:All of the above
Question 8: Current estimates suggest that AI-based tools will help streamline the treatment planning process, producing more consistent plans and potentially reducing treatment planning errors, providing physicists with additional time for other tasks such as quality improvement, FMEA, research, teaching, and/or physicists-patient consult.
Reference:Ref: Netherton, Tucker J., et al. "The Emergence of Artificial Intelligence within Radiation Oncology Treatment Planning." Oncology 99.2 (2021): 124-134.
Choice A:True
Choice B:False
Question 9: Which one of the following is not part of model/epistemic uncertainty
Reference:Kendall, A. & Gal, Y. What Uncertainties Do We Need in Bayesian Deep Learning for Computer Vision? In Advances in Neural Information Processing Systems 30 (eds. Guyon, I. et al.) 5574–5584 (Curran Associates, Inc., 2017)
Choice A:uncertainty in the chosen model structure
Choice B:uncertainty in the estimated model parameters
Choice C:uncertainty due to the lack of training data.
Question 10: System meta-analysis had shown that when there was no report of sample level metric, medical ML can be taken with:
Reference:Christodoulou, E. et al. A systematic review shows no performance benefit of machine learning over logistic regression for clinical prediction models. J. Clin. Epidemiol. 110, 12–22 (2019).
Choice A:full confidence
Choice B:caution
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