About me
I am a Postdoctoral Associate in the Gong Lab at the J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida.
My research interests include positron emission tomography (PET), image reconstruction, denoising, and deep learning. My work explores deep learning-based PET image reconstruction and enhancement.
Before joining the University of Florida in 2025, I worked as a researcher at Central Research Laboratory, Hamamatsu Photonics K.K. and as a visiting collaborative researcher at the National Institutes for Quantum Science and Technology (QST).
Research interests
- Positron emission tomography (PET)
- Image reconstruction and enhancement
- Deep learning for medical imaging
Selected publications
Flow Matching-Based PET Image Reconstruction
arXiv:2608.20112, 2026. (Preprint)
PET Image Reconstruction Using Deep Diffusion Image Prior
IEEE Transactions on Medical Imaging, vol. 45, no. 6, pp. 2628-2638, 2026.
Deep learning-based PET image denoising and reconstruction: a review
Radiological Physics and Technology, vol. 17, no. 1, pp. 24-46, 2024. (Invited review paper)
Ultrafast timing enables reconstruction-free positron emission imaging
Nature Photonics, vol. 15, no. 12, pp. 914-918, 2021. (* Equal contribution)
PET Image Reconstruction Incorporating Deep Image Prior and a Forward Projection Model
IEEE Transactions on Radiation and Plasma Medical Sciences, vol. 6, no. 8, pp. 841-846, 2022.
4D deep image prior: dynamic PET image denoising using an unsupervised four-dimensional branch convolutional neural network
Physics in Medicine and Biology, vol. 66, no. 1, 015006, 2021.
Dynamic PET image denoising using deep convolutional neural networks without prior training datasets
IEEE Access, vol. 7, pp. 96594-96603, 2019.
Contact
J. Crayton Pruitt Family Department of Biomedical Engineering
University of Florida, United States
Email: fumio.hashimo@ufl.edu
Alternative: fumio.hashimoto01@gmail.com
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