Andy Tseng, PhD

Assistant Professor

Andy Tseng, PhD, is an Assistant Professor in the Department of Radiology and Imaging Sciences. He earned his doctorate in Optical Sciences from the University of Arizona in 2015 and subsequently joined the department as a postdoctoral researcher. In 2019, he was promoted to Associate Research Scientist.

Dr. Tseng’s research focuses on computed tomography (CT) physics, system design and optimization, image reconstruction, and image quality assessment. He has developed advanced reconstruction algorithms for cone-beam CT, including approaches based on compressed sensing and deep learning. His current work includes the development of dual-energy cone-beam CT for image-guided interventions and a novel simultaneous bilateral breast CT system.

He has authored 15 peer-reviewed journal articles and continues to contribute to the advancement of CT imaging technologies.

 

Select Publications

2025

Larsen, T., H. Wu Tseng, J-T. Alan Chiang, and S. Vedantham, "Soft-tissue lesion and microcalcification detectability in cone-beam breast CT: cascaded system analysis.", J Med Imaging (Bellingham), vol. 12, issue 6, pp. 063501, 2025 Nov. PMCID: PMC12704369 
Tseng, H. Wu, Z. Fu, and S. Vedantham, "Simultaneous reduction of radiation dose and scatter-to-primary ratio using a truncated detector and advanced algorithms for dedicated cone-beam breast CT.", Biomed Phys Eng Express, vol. 11, issue 2, 2025 Mar 03. PMCID: PMC12047646  PMID: 39983239

2024

Larsen, T., H. Wu Tseng, R. Trinate, Z. Fu, J-T. Alan Chiang, A. Karellas, and S. Vedantham, "Maximizing microcalcification detectability in low-dose dedicated cone-beam breast CT: parallel cascades-based theoretical analysis.", J Med Imaging (Bellingham), vol. 11, issue 3, pp. 033501, 2024 May. PMCID: PMC11095120 
Fu, Z., H. Wu Tseng, and S. Vedantham, "An attenuation field network for dedicated cone beam breast CT with short scan and offset detector geometry.", Sci Rep, vol. 14, issue 1, pp. 319, 2024 Jan 03. PMCID: PMC10764954  PMID: 38172250

2023

Tseng, H. Wu, A. Karellas, and S. Vedantham, "Dedicated cone-beam breast CT: Data acquisition strategies based on projection angle-dependent normalized glandular dose coefficients.", Med Phys, vol. 50, issue 3, pp. 1406-1417, 2023 Mar. PMCID: PMC10207937  PMID: 36427332

2022

Tseng, H. Wu, A. Karellas, and S. Vedantham, "Cone-beam breast CT using an offset detector: effect of detector offset and image reconstruction algorithm.", Phys Med Biol, vol. 67, issue 8, 2022 Apr 07. PMID: 35316793

2021

Tseng, H. Wu, A. Karellas, and S. Vedantham, "Radiation dosimetry of a clinical prototype dedicated cone-beam breast CT system with offset detector.", Med Phys, vol. 48, issue 3, pp. 1079-1088, 2021 Mar. PMCID: PMC9007273  PMID: 33501686
Tseng, H., A. Karellas, and S. Vedantham, "Radiation dosimetry of a clinical prototype dedicated cone‐beam breast CT system with offset detector", Medical Physics, 01/2021.

2020

Tseng, H. Wu, S. Vedantham, and A. Karellas, "Cone-beam breast computed tomography using ultra-fast image reconstruction with constrained, total-variation minimization for suppression of artifacts", Physica Medica, vol. 73, 05/2020.
Tseng, H. Wu, A. Karellas, and S. Vedantham, "Sparse-view, short-scan, dedicated cone-beam breast computed tomography: image quality assessment.", Biomed Phys Eng Express, vol. 6, issue 6, 2020 Sep 28. PMCID: PMC8004539  PMID: 33377758
Fu, Z., H. Wu Tseng, S. Vedantham, A. Karellas, and A. Bilgin, "A residual dense network assisted sparse view reconstruction for breast computed tomography", Scientific Reports, vol. 10; 21111, 12/2020.
Tseng, H. Wu, A. Karellas, and S. Vedantham, "Sparse-view, short-scan, dedicated cone-beam breast computed tomography: image quality assessment", Biomedical Physics & Engineering Express , vol. 6, issue 6, 09, 2020.
Tseng, H. W., A. Karellas, and S. Vedantham, "Sparse-view, short-scan, dedicated cone-beam breast computed tomography: Image quality assessment.", Biomedical Physics & Engineering Express, vol. 5, 09/ 2020.
Fu, Z., H. Wu Tseng, S. Vedantham, A. Karellas, and A. Bilgin, "A residual dense network assisted sparse view reconstruction for breast computed tomography.", Sci Rep, vol. 10, issue 1, pp. 21111, 2020 Dec 03. PMCID: PMC7713379  PMID: 33273541

2019

Tseng, H. W., S. Vedantham, S. H. Cho, and A. Karellas, "Joint optimization of collimator and reconstruction parameters in x-ray fluorescence computed tomography using analytical point spread function and model observer.", IEEE Trans Biomed Eng, 2019 Dec 30. PMID: 31899411