2022 AAPM 64th Annual Meeting
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Session Title: AI-Empowered Clinical Decision Support for Personalized Radiation Therapy
Question 1: Which of the following statements about deep reinforcement learning (DRL) is wrong?
Reference:Human-level control through deep reinforcement learning, V Mnih et al, Nature, 518, pp529–533, 2015
Choice A:DRL incorporates a deep neural network as agent to interact with the environment
Choice B:DRL automatically generates a number of training samples in a trial-and-error fashion
Choice C:DRL is a type of learning strategies within the scope of deep learning
Choice D:DRL does NOT fall into the regime of deep learning/machine learning
Question 2: Why is AI/ML useful for clinical outcome modeling?
Reference:El Naqa I, A Guide to Outcome Modeling in Radiotherapy and Oncology: Listening to the Data, CRC Press Taylor & Francis Group, Boca Raton, FL, 2018.
Choice A:The underlying mechanisms of clinical outcome and patient response are known given current knowledge
Choice B:Machine learning allow for discovering complex patterns in the data such as encountered including radiomics
Choice C:Statistical methods can only be used for testing but not for building such models
Choice D:None of the above
Choice E:All of the above
Question 3: Which one of the following measure(s) have been used for clinical evaluation of AI auto-segmentation techniques?
Reference:Caravatta, L., et al., Inter-observer variability of clinical target volume delineation in radiotherapy treatment of pancreatic cancer: a multi-institutional contouring experience. Radiat Oncol, 2014. 9: p. 198.
Choice A:Volume based, e.g., Dice similarity coefficient, Jaccard index
Choice B:Distance based: e.g., Hausdorff distance, mean surface distance
Choice C:Dosimetry based: e.g., DVH changes of the plan
Choice D:All of the above
Question 4: Can any known radiobiological model correctly predict local control over the whole range of fractionation schedules?
Reference:Jeong J, Oh JH, Sonke JJ, Belderbos J, Bradley JD, Fontanella AN, Rao SS, Deasy JO. Modeling the cellular response of lung cancer to radiation therapy for a broad range of fractionation schedules. Clinical Cancer Research. 2017 Sep 15;23(18):5469-79.
Choice A:Yes
Choice B:No
Question 5: Radiobiological models are always represented as equations that correlate to outcome, True or False?
Reference:Jeong J, Oh JH, Sonke JJ, Belderbos J, Bradley JD, Fontanella AN, Rao SS, Deasy JO. Modeling the cellular response of lung cancer to radiation therapy for a broad range of fractionation schedules. Clinical Cancer Research. 2017 Sep 15;23(18):5469-79.
Choice A:True
Choice B:False
Question 6: What are the key challenges facing the development of cancer patient digital twins?
Reference:Hernandez-Boussard T, Macklin P, Greenspan EJ, Gryshuk AL, Stahlberg E, Syeda-Mahmood T, Shmulevich I. Digital twins for predictive oncology will be a paradigm shift for precision cancer care. Nat Med. 2021 Dec;27(12):2065-2066. doi: 10.1038/s41591-021-01558-5. PMID: 34824458.
Choice A:Data challenges such as generating and acquiring high-volume, high-quality, multiscale data
Choice B:Modeling and integration challenges such as seamlessly integrating data-driven and mechanistic modeling
Choice C:Ethical and community challenges such as ethical biases and privacy concerns
Choice D:All of the above
Choice E:None of the above
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