Improving spatial resolution with an edge-enhancement model for low-dose propagation-based X-ray phase-contrast computed tomography

L Zhang, H Zhao, Z Zhou, M Jia, L Zhang, J Jiang… - Optics …, 2021 - opg.optica.org
Propagation-based X-ray phase-contrast computed tomography (PB-PCCT) has been
increasingly popular for distinguishing low contrast tissues. Phase retrieval is an important …

Revising the lower statistical limit of x-ray grating-based phase-contrast computed tomography

M Marschner, L Birnbacher, M Willner, M Chabior… - Plos one, 2017 - journals.plos.org
Phase-contrast x-ray computed tomography (PCCT) is currently investigated as an
interesting extension of conventional CT, providing high soft-tissue contrast even if …

Suppressing multi-material and streak artifacts with an accelerated 3D iterative image reconstruction algorithm for in-line X-ray phase-contrast computed tomography

Y Zhao, M Zheng, Y Li, S Han, F Li, B Qi, D Liu… - Optics Express, 2022 - opg.optica.org
In-line X-ray phase-contrast computed tomography typically contains two independent
procedures: phase retrieval and computed tomography reconstruction, in which multi …

Synchrotron‐based high‐energy x‐ray phase sensitive microtomography for biomedical research

H Liu, X Wu, T Xiao - Medical physics, 2015 - Wiley Online Library
Purpose: Propagation‐based phase‐contrast CT (PPCT) utilizes highly sensitive phase‐
contrast technology applied to x‐ray microtomography. Performing phase retrieval on the …

A new in-line X-ray phase-contrast computed tomography reconstruction algorithm based on adaptive-weighted anisotropic TpV regularization for insufficient data

Y Zhao, D Ji, Y Chen, J Jian, X Zhao… - Journal of Synchrotron …, 2019 - scripts.iucr.org
In-line X-ray phase-contrast computed tomography (IL-PCCT) is a valuable tool for revealing
the internal detailed structures in weakly absorbing objects (eg biological soft tissues), and …

Physics-informed deep neural network reconstruction framework for propagation-based x ray phase-contrast computed tomography with sparse-view projections

F Li, Y Zhao, S Han, D Ji, Y Li, M Zheng, W Lv, J Jian… - Optics Letters, 2022 - opg.optica.org
Propagation-based phase contrast computed tomography (PB-PCCT) is an effective
technique for three-dimensional visualization of weakly attenuating samples. However, the …

Comparison of quantitative multi-material phase-retrieval algorithms in propagation-based phase-contrast X-ray tomography

I Häggmark, W Vågberg, HM Hertz, A Burvall - Optics Express, 2017 - opg.optica.org
Propagation-based phase-contrast X-ray imaging provides high-resolution, dose-efficient
images of biological materials. A crucial challenge is quantitative reconstruction, referred to …

Dual-path deep learning reconstruction framework for propagation-based X-ray phase–contrast computed tomography with sparse-view projections

S Han, Y Zhao, F Li, D Ji, Y Li, M Zheng, W Lv, X Xin… - Optics Letters, 2021 - opg.optica.org
Propagation-based X-ray phase–contrast computed tomography (PB-PCCT) can serve as
an effective tool for studying organ function and pathologies. However, it usually suffers from …

Image reconstruction in phase-contrast tomography exploiting the second-order statistical properties of the projection data

CY Chou, PY Huang - Optics Express, 2011 - opg.optica.org
X-ray phase-contrast tomography (PCT) methods seek to quantitatively reconstruct separate
images that depict an object's absorption and refractive contrasts. Most PCT reconstruction …

Model-based iterative reconstruction for propagation-based phase-contrast x-ray ct including models for the source and the detector

L Hehn, R Gradl, M Dierolf, KS Morgan… - … on Medical Imaging, 2019 - ieeexplore.ieee.org
Propagation-based phase-contrast X-ray computed tomography is a valuable tool for high-
resolution visualization of biological samples, giving distinct improvements in terms of …