2021 AAPM Virtual 63rd Annual Meeting
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Session Title: SIIM-AAPM Joint Symposium on Machine Intelligence in Medical Imaging
Question 1: (#1) What is a framework for transforming diagnostic billing codes into AI-friendly structures?
Reference:Reference: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6844192/
Choice A:(a) medical language processing
Choice B:(b) transformer models
Choice C:(c) phenome wide association / phenome disease association studies (PheWAS/PheWAS)
Choice D:(d) disease association studies
Question 2: (#2) What were the fundamental innovation that allowed neural networks to be effective on medical images?
Reference:Reference: https://link.springer.com/chapter/10.1007/978-3-319-24574-4_28
Choice A:(a) convolutional blocks
Choice B:(b) residual connections
Choice C:(c) multi-scale connections
Choice D:(d) downsampling
Question 3: 1. It is not possible to train an auto-segmentation model on both contrast enhanced and non-contrast enhanced CT images of the liver.
Reference:Reference: Anderson BM, Lin EY, Cardenas CE, Gress DA, Erwin WD, Odisio BC, Koay EJ, Brock KK. Automated Contouring of Contrast and Noncontrast Computed Tomography Liver Images With Fully Convolutional Networks. Adv Radiat Oncol. 2020 May 16;6(1):100464. doi: 10.1016/j.adro.2020.04.023. PMID: 33490720; PMCID: PMC7807136.
Choice A:True
Choice B:False
Question 4: 2. The use of Dice similarity coefficient to measurement accuracy of auto-segmentation
Reference:Reference: Anderson BM, Lin EY, Cardenas CE, Gress DA, Erwin WD, Odisio BC, Koay EJ, Brock KK. Automated Contouring of Contrast and Noncontrast Computed Tomography Liver Images With Fully Convolutional Networks. Adv Radiat Oncol. 2020 May 16;6(1):100464. doi: 10.1016/j.adro.2020.04.023. PMID: 33490720; PMCID: PMC7807136.
Choice A:a. May over or underestimate accuracy compared to clinical acceptability
Choice B:b. Is a perfect surrogate for clinical acceptability
Choice C:c. Is only valid to assess tumor segmentation
Choice D:d. Is only valid to assess organ segmentation
Question 5: 3. In a recent study on liver auto-segmentation, the DeepLab v3+ architecture
Reference:Reference: Anderson BM, Lin EY, Cardenas CE, Gress DA, Erwin WD, Odisio BC, Koay EJ, Brock KK. Automated Contouring of Contrast and Noncontrast Computed Tomography Liver Images With Fully Convolutional Networks. Adv Radiat Oncol. 2020 May 16;6(1):100464. doi: 10.1016/j.adro.2020.04.023. PMID: 33490720; PMCID: PMC7807136.
Choice A:a. Performed significantly worse than both the VGG16 and the 3D UNET
Choice B:b. Performed significantly worse than the VGG16 but significantly better than the 3D UNET
Choice C:c. Performed significantly better than the VGG16 but significantly worse than the 3D UNET
Choice D:d. Performed significantly better than both the VGG16 and the 3D UNET
Question 6: (#1) When optimizing k-space sampling patterns for MRI acquisition:
Reference:Reference: G. Wang, T. Luo, J-F. Nielsen, D. Noll, J. Fessler: “B-spline parameterized joint optimization of reconstruction and k-space trajectories (BJORK) for accelerated 2D MRI”, 2021. http://arxiv.org/abs/2101.11369
Choice A:(a) Using a B-spline parameterization automatically ensures that hardware constraints like slew rate limits are enforced.
Choice B:(b) The optimal sampling patterns for different anatomical regions can differ.
Choice C:(c) One must consider the effects of eddy currents in the optimization process.
Choice D:(d) The optimization problem is convex.
Question 7: (#2) In terms of MRI reconstruction methods, which of the following statements is true:
Reference:Reference: G. Wang, T. Luo, J-F. Nielsen, D. Noll, J. Fessler: “B-spline parameterized joint optimization of reconstruction and k-space trajectories (BJORK) for accelerated 2D MRI”, 2021. http://arxiv.org/abs/2101.11369
Choice A:(a) Optimized k-space sampling benefits only deep-learning reconstruction methods.
Choice B:(b) A neural network is mathematically equivalent to a regularization term.
Choice C:(c) An unrolled neural network approach with data consistency steps outperforms an image-domain U-Net approach.
Choice D:(d) Neural network reconstruction methods are faster than compressed sensing methods.
Question 8: 1. Which of the following can assist with AI workflow orchestration?
Reference:Reference: Integrating the Healthcare Enterprise: IHE Radiology Technical Framework Supplement for AI Results; Radiology Technical Committee. https://www.ihe.net/uploadedFiles/Documents/Radiology/IHE_RAD_Suppl_AIR.pdf. July 16, 2020; accessed March 24, 2021.
Choice A:a. DICOM
Choice B:b. DOCKER
Choice C:c. FHIR
Choice D:d. IHE
Question 9: 2. All of the following are ML inference integration standards except
Reference:Reference: Docker Overview. https://docs.docker.com/get-started/overview/. Accessed March 24, 2021.
Choice A:a. CDE
Choice B:b. DICOM
Choice C:c. DOCKER
Choice D:d. FHIR
Question 10: 3. Which of the following standards can be used for AI results reporting?
Reference:Reference: Common Data Elements (CDEs) for Radiology. https://www.radelement.org/. Accessed March 24, 2021. Clunie DA. DICOM Structured Reporting. https://www.google.com/books/edition/DICOM_Structured_Reporting/EVjOolUJNGUC?hl=en&gbpv=1&pg=PP1&printsec=frontcover. PixelMed Publishing, Bangor, PA, 2000.
Choice A:a. CDE and DICOM
Choice B:b. CDE and DOCKER
Choice C:c. DICOM and DOCKER
Choice D:d. FHIR and IHE
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