Publications

2024

• D. Lee, X. Zhan, W. Y. Tai, W. Zbijewski, K. Taguchi, et al. "Improving model–data mismatch for photon-counting detector model using global and local model parameters." Medical Physics, 51.2 (2024): 964-977.

• S. Subramanian, W. P. Segars, T. Y. Lee, A. V. Faria, D. Lee, et al. “A CT system-free approach for brain perfusion assessment: temporal perfusion index estimation.” Medical Imaging 2024: Physics of Medical Imaging. Vol. 12925. SPIE, 2024.

• W. Y. Tai, D. Lee, X. Zhan, K. Taguchi, and W. Zbijewski, “Impact of bowtie scatter on iodine quantification in photon-counting CT”. Will be presented at: Radiological Society of North America 2024 Scientific Assembly and Annual Meeting, Dec. 1–5, 2024, Chicago, IL.

• H. Jo, D. Lee, and S. Cho. “Image up-sampling method for dual-radiation nondestructive cargo inspection system.” Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment (2024): 169541.

2023

• D. Lee, et al. "Photon-count detector model using local parameters for pixel-to-pixel deviations." Medical Imaging 2023: Physics of Medical Imaging. Vol. 12463. SPIE, 2023. (Oral presentation)

• W. Y. Tai, D. Lee, et al. "Effects of bowtie scatter on material decomposition in photon-counting CT." Medical Imaging 2023: Physics of Medical Imaging. Vol. 12463. SPIE, 2023. (Oral presentation)

• S. Subramanian, D. Lee, A. V. Faria, M. Unberath, W. P. Segars, and K. Taguchi, “Brain Perfusion CT without a CT system”. Presented at: Radiological Society of North America 2023 Scientific Assembly and Annual Meeting, Nov. 26–Nov. 30, 2023, Chicago, IL.

• W. Y. Tai, D. Lee, X. Zhan, K. Taguchi, and W. Zbijewski, “Fast Monte Carlo scatter correction in Photon-Counting CT”. Presented at: Radiological Society of North America 2023 Scientific Assembly and Annual Meeting, Nov. 26–Nov. 30, 2023, Chicago, IL.

• D. Lee, X. Zhan, W. Y. Tai, W. Zbijewski, and K. Taguchi “Advanced Photon-Counting Detector Simulator with a Count-Rate-Dependent Mapping Operator and a Pixel-to-Pixel Variation Generator” 2023 IEEE Nuclear Science Symposium, Medical Imaging Conference and International Symposium on Room-Temperature Semiconductor Detectors (NSS MIC RTSD). IEEE, 2023.

• S. Subramanian, D. Lee, A. V. Faria, W. P. Segars, M. Unberath and K. Taguchi, "Brain tissue perfusion assessment without using a CT system," 2023 IEEE Nuclear Science Symposium, Medical Imaging Conference, and International Symposium on Room-Temperature Semiconductor Detectors (NSS MIC RTSD), Vancouver, BC, Canada, 2023.

• S. Yun, U. Jeong, D. Lee, et al. "Image quality improvement in bowtie-filter-equipped cone-beam CT using a dual-domain neural network." Medical Physics, 50.12 (2023): 7498-7512.

2022

• D. Lee, S. Yun, J. Soh, S. Lim, H. Kim, and S. Cho, "A Generalized Simultaneous Algebraic Reconstruction Technique (G-SART) for Dual-Energy X-ray Computed Tomography." J Xray Sci Technol. 30(3):549-566.(2022); doi: 10.3233/XST-211054.

• W. Y. Tai, D. Lee, X. Zhan, K. Taguchi, and W. Zbijewski, "Impact of scatter on material decomposition accuracy in Photon-Counting CT". Presented at: Radiological Society of North America 2022 Scientific Assembly and Annual Meeting, Nov. 27–Dec. 1, 2022, Chicago, IL.

• S. Yun, U. Jeong, D. Lee, et al. "Dual-domain network with transfer learning for reducing bowtie-filter induced artifacts in half-fan cone-beam CT." 7th International Conference on Image Formation in X-Ray Computed Tomography. Vol. 12304. SPIE, 2022.

2021

• D. Lee and S. Cho, “Learned energy-flexible algorithm using joint sparsity for dual-energy CT: a preliminary study." 16th Virtual International Meeting on Fully 3D Image Reconstruction in Radiology and Nuclear Medicine, 2021.

• S. Yun, D. Lee, H. Kim, R. Pua, S. Cho, and S. Cho, "Efficient prior image generation for normalized sinogram surgery with the beam-hardening correction." 16th Virtual International Meeting on Fully 3D Image Reconstruction in Radiology and Nuclear Medicine, 2021.

2020

• D. Lee, H. Jo, S. Shim, J. Kim, K. Oh, B. Lee, N. Lee, and S. Cho, "Effective noise reduction algorithm for material decomposition in dual-energy X-ray inspection." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 968 (2020): 163930.

• S. Cho, S. Lee, J. Lee, D. Lee, et al. "A novel low-dose dual-energy imaging method for a fast-rotating gantry-type CT scanner." IEEE Transactions on Medical Imaging 40.3 (2020): 1007-1020.

• D. Lee, H. Jo, and S. Cho, "Single-scan dual-energy CT image reconstruction via normalized gradient magnitude image (NGMI) regularization." 6th International Conference on Image Formation in X-Ray Computed Tomography. CT-meeting, 2020.

2019

• H. Kim, D. Lee, et al. "Improvement of the bonding properties of mineral trioxide aggregate by elastin-like polypeptide supplementation." Scanning 2019 (2019).

2018

• D. Lee, J. Lee, J. Min, B. Lee, B. Lee, K. Oh, J. Kim, and S. Cho "Efficient material decomposition method for dual-energy X-ray cargo inspection system." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 884 (2018): 105-112.

• K. Oh, J. Kim, S. Kim, M. Chae, D. Lee,  et al. "Evaluation and optimization of an image acquisition system for dual-energy cargo inspections." IEEE Transactions on Nuclear Science 65.9 (2018): 2657-2661.

• D. Lee, J. Soh, S. Lim, and S. Cho, "A Beam-Hardening Correction Method Based on a Discrete Spectral Attenuation Model in X-ray Microcomputed Tomography." IEEE Nuclear Science Symposium and Medical Imaging Conference. IEEE NSS/MIC, 2018.

2017

• D. Lee, J. Lee, H. Kim, T. Lee, J. Soh, M. Park, C. Kim, Y. J. Lee and S. Cho, "A feasibility study of low-dose single-scan dual-energy cone-beam CT in many-view under-sampling framework." IEEE transactions on medical imaging 36.12 (2017): 2578-2587.

• D. Lee, J. Soh, T. Kwon, T. Lee, S. Wi, J. Lee, and S. Cho, "Low-dose cone-beam CT reconstruction with moving beam blockers for dual-energy CT." JKMP. KSMP, JSMP, 2017.