Prof. William Hsu
SPIE Involvement:
Author | Instructor
Area of Expertise:
imaging informatics , deep learning , data integration , integrated diagnostics , cancer screening
Profile Summary

Dr. Hsu is Professor of Radiological Sciences and Bioengineering at the University of California, Los Angeles. He is a biomedical informatician with over 15 years of experience and over 80 peer-reviewed publications in data integration, artificial intelligence/machine learning, and imaging informatics. He directs the Integrated Diagnostics Shared Resource, a large-scale data and biobanking effort combining clinical, radiologic and pathologic images, outcomes, and biospecimens to advance imaging-based characterization of tissue microenvironments for diagnosis and treatment. He is funded by grants from the National Science Foundation, National Institutes of Health, V Foundation, and the Agency for Healthcare Research and Quality. He serves as deputy editor for Radiology: Artificial Intelligence and has previously served as section co-editor for the International Medical Informatics Association Yearbook in Medical Informatics.
Publications (7)

Proceedings Article | 3 April 2024 Poster + Paper
Noor Nakhaei, Tengyue Zhang, Demetri Terzopoulos, William Hsu
Proceedings Volume 12927, 1292734 (2024) https://doi.org/10.1117/12.3006255
KEYWORDS: Image segmentation, Medical imaging, Image processing algorithms and systems, Skin cancer, Retina

Proceedings Article | 3 April 2024 Presentation + Paper
Proceedings Volume 12933, 129330V (2024) https://doi.org/10.1117/12.3006499
KEYWORDS: Radiomics, Lung, Computed tomography, Statistical modeling, Lung cancer, Data fusion

Proceedings Article | 3 April 2024 Presentation + Paper
Proceedings Volume 12927, 1292711 (2024) https://doi.org/10.1117/12.3006582
KEYWORDS: Computed tomography, CT reconstruction, Medical image reconstruction, Computer aided detection, Image restoration, Artificial intelligence, Visualization, Therapeutics, Ischemia, Neuroimaging

SPIE Journal Paper | 8 May 2021 Open Access
Nova Smedley, Denise Aberle, William Hsu
JMI, Vol. 8, Issue 03, 031906, (May 2021) https://doi.org/10.1117/12.10.1117/1.JMI.8.3.031906
KEYWORDS: Neural networks, Data modeling, Tumors, Tumor growth modeling, Signal processing, Proteins, Performance modeling, Lung cancer, Hypoxia, Computed tomography

Proceedings Article | 16 February 2021 Presentation + Paper
M. W. Wahi-Anwar, N. Emaminejad, Y. Choi, H. Kim, W. Hsu, M. Brown, M. McNitt-Gray
Proceedings Volume 11595, 115950G (2021) https://doi.org/10.1117/12.2582126
KEYWORDS: Medical imaging, Lung, Computer aided diagnosis and therapy, Imaging systems, Range imaging, Lung cancer, Data acquisition

Showing 5 of 7 publications
Conference Committee Involvement (1)
Imaging Informatics
17 February 2025 | San Diego, California, United States
Course Instructor
SC1295: From Analytic to Clinical Validation: Moving AI/ML into Practice
Artificial Intelligence (AI) is increasingly being used in a wide variety of medical imaging applications. Most of the focus, however, is on algorithm and scheme development, but this is only part of the picture. In order to have an impact on clinical decision making, workflow and patient care these AI tools must be evaluated using real-world cases and actual clinical providers that are expected to use them in routine care. The techniques used to conduct these types of studies are less well known in this field thus investigators need to be trained the proper study design and analysis methods. This course will cover basic principles, techniques, and process for validating models developed using artificial intelligence (AI)/machine learning (ML) techniques. The primary goal of this course is to help the audience understand and apply fundamental principles related to designing, executing, and interpreting model evaluation studies. The course will be organized around two parts: analytic validation and clinical validation. In the first half, the audience will be exposed to approaches for performing a technical validation of a prediction model, including different study designs, appropriate statistical tests, metrics, dataset considerations, and decision curve analysis. The second half will cover the process of undertaking clinical validation that would address real-world use of models, regulatory and deployment issues. Topics include workflow integration, prospective clinical trials, reader impact studies, and regulatory approvals. Examples will focus on imaging-related models that are drawn from literature and the instructors’ personal experiences in prognostic modeling, computer-aided diagnosis, and imaging biomarker development. <strong><br>Course level is Intermediate and will include some Advanced level concepts.</strong>
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