PET image denoising using unsupervised deep learning

J Cui, K Gong, N Guo, C Wu, X Meng, K Kim… - European journal of …, 2019 - Springer
Purpose Image quality of positron emission tomography (PET) is limited by various physical
degradation factors. Our study aims to perform PET image denoising by utilizing prior …

PET image denoising using a deep neural network through fine tuning

K Gong, J Guan, CC Liu, J Qi - IEEE Transactions on Radiation …, 2018 - ieeexplore.ieee.org
Positron emission tomography (PET) is a functional imaging modality widely used in clinical
diagnosis. In this paper, we trained a deep convolutional neural network to improve PET …

Dynamic PET image denoising using deep image prior combined with regularization by denoising

H Sun, L Peng, H Zhang, Y He, S Cao, L Lu - IEEE Access, 2021 - ieeexplore.ieee.org
The quantitative accuracy of positron emission tomography (PET) is affected by several
factors, including the intrinsic resolution of the imaging system and inherently noisy data …

Noise2Void: unsupervised denoising of PET images

TA Song, F Yang, J Dutta - Physics in Medicine & Biology, 2021 - iopscience.iop.org
Objective: Elevated noise levels in positron emission tomography (PET) images lower image
quality and quantitative accuracy and are a confounding factor for clinical interpretation. The …

4D deep image prior: dynamic PET image denoising using an unsupervised four-dimensional branch convolutional neural network

F Hashimoto, H Ohba, K Ote, A Kakimoto… - Physics in Medicine …, 2021 - iopscience.iop.org
Although convolutional neural networks (CNNs) demonstrate the superior performance in
denoising positron emission tomography (PET) images, a supervised training of the CNN …

PET image denoising based on denoising diffusion probabilistic model

K Gong, K Johnson, G El Fakhri, Q Li, T Pan - European Journal of …, 2024 - Springer
Purpose Due to various physical degradation factors and limited counts received, PET
image quality needs further improvements. The denoising diffusion probabilistic model …

Dynamic PET image denoising using deep convolutional neural networks without prior training datasets

F Hashimoto, H Ohba, K Ote, A Teramoto… - IEEE …, 2019 - ieeexplore.ieee.org
Deep learning has attracted growing interest for application to medical imaging, such as
positron emission tomography (PET), due to its excellent performance. Convolutional neural …

Full‐count PET recovery from low‐count image using a dilated convolutional neural network

K Spuhler, M Serrano‐Sosa, R Cattell… - Medical …, 2020 - Wiley Online Library
Purpose Positron emission tomography (PET) is an essential technique in many clinical
applications that allows for quantitative imaging at the molecular level. This study aims to …

Supervised learning with cyclegan for low-dose FDG PET image denoising

L Zhou, JD Schaefferkoetter, IWK Tham, G Huang… - Medical image …, 2020 - Elsevier
PET imaging involves radiotracer injections, raising concerns about the risk of radiation
exposure. To minimize the potential risk, one way is to reduce the injected tracer. However …

Anatomical-guided attention enhances unsupervised PET image denoising performance

Y Onishi, F Hashimoto, K Ote, H Ohba, R Ota… - Medical image …, 2021 - Elsevier
Although supervised convolutional neural networks (CNNs) often outperform conventional
alternatives for denoising positron emission tomography (PET) images, they require many …