Deep learning based spectral CT imaging

W Wu, D Hu, C Niu, LV Broeke, APH Butler, P Cao… - Neural Networks, 2021 - Elsevier
Spectral computed tomography (CT) has attracted much attention in radiation dose
reduction, metal artifacts removal, tissue quantification and material discrimination. The x-ray …

Non-local low-rank cube-based tensor factorization for spectral CT reconstruction

W Wu, F Liu, Y Zhang, Q Wang… - IEEE transactions on …, 2018 - ieeexplore.ieee.org
Spectral computed tomography (CT) reconstructs material-dependent attenuation images
from the projections of multiple narrow energy windows, which is meaningful for material …

Feasibility study of three-material decomposition in dual-energy cone-beam CT imaging with deep learning

J Zhu, T Su, X Zhang, J Yang, D Mi… - Physics in Medicine …, 2022 - iopscience.iop.org
Objective. In this work, a dedicated end-to-end deep convolutional neural network, named
as Triple-CBCT, is proposed to demonstrate the feasibility of reconstructing three different …

SISTER: Spectral-image similarity-based tensor with enhanced-sparsity reconstruction for sparse-view multi-energy CT

D Hu, W Wu, M Xu, Y Zhang, J Liu… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
Multi-energy computed tomography (MCT) has a great potential in material decomposition,
tissue characterization, lesion detection, and other applications. However, the severe noise …

DIRECT‐Net: a unified mutual‐domain material decomposition network for quantitative dual‐energy CT imaging

T Su, X Sun, J Yang, D Mi, Y Zhang, H Wu… - Medical …, 2022 - Wiley Online Library
Purpose The purpose of this paper is to present an end‐to‐end deep convolutional neural
network to improve the dual‐energy CT (DECT) material decomposition performance …

A high-quality photon-counting CT technique based on weight adaptive total-variation and image-spectral tensor factorization for small animals imaging

W Wu, D Hu, K An, S Wang… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Photon-counting X-ray computed tomography (CT) has been attracting great attention in
tissue characterization, material discrimination, and so on. The emitting X-ray energy …

Image restoration for low-dose CT via transfer learning and residual network

A Zhong, B Li, N Luo, Y Xu, L Zhou, X Zhen - IEEE Access, 2020 - ieeexplore.ieee.org
Deep learning has recently been extensively investigated to remove artifacts in low-dose
computed tomography (LDCT). However, the power of transfer learning for medical image …

FONT-SIR: Fourth-order nonlocal tensor decomposition model for spectral CT image reconstruction

X Chen, W **a, Y Liu, H Chen, J Zhou… - … on Medical Imaging, 2022 - ieeexplore.ieee.org
Spectral computed tomography (CT) reconstructs images from different spectral data
through photon counting detectors (PCDs). However, due to the limited number of photons …

DECT sparse reconstruction based on hybrid spectrum data generative diffusion model

J Liu, F Wu, G Zhan, K Wang, Y Zhang, D Hu… - Computer Methods and …, 2025 - Elsevier
Purpose Dual-energy computed tomography (DECT) enables the differentiation of different
materials. Additionally, DECT images consist of multiple scans of the same sample …

Spectral CT reconstruction via spectral-image tensor and bidirectional image-gradient minimization

W Wu, H Yu, F Liu, J Zhang, V Vardhanabhuti - Computers in Biology and …, 2022 - Elsevier
It is challenging to obtain good image quality in spectral computed tomography (CT) as the
photon-number for the photon-counting detectors is limited for each narrow energy bin. This …