34 citations · 79 across the 18 of their papers we have counts for
9 papers · 1 filter
Fast Patient-Specific Breast CT Dosimetry: 22-Fold Acceleration of Monte Carlo MGD Estimation
Amir Entezam, Ashkan Pakzad, Christopher J. Hall +9
Accurate patient-specific mean glandular dose (MGD) estimation in breast computed tomography (BCT) requires anatomically realistic models, but high-resolution patient-derived phant…
Development and Validation of Patient-Specific Monte Carlo Dosimetry for Synchrotron Breast Phase-Contrast CT
Amir Entezam, Ashkan Pakzad, Christopher J. Hall +11
This study develops and validates a patient-specific Monte Carlo (MC) dosimetry framework for propagation-based phase-contrast breast CT (BCT) at the Imaging and Medical Beamline (…
On optimization of Paganin's method for propagation-based X-ray phase-contrast imaging and tomography
Timur E. Gureyev, David M. Paganin, Ashkan Pakzad +1
Paganin's method for image reconstruction in propagation-based phase-contrast X-ray imaging and tomography has enjoyed broad acceptance in recent years, with over one thousand publ…
Signal-to-noise and spatial resolution in in-line imaging. 3. Optimization using a simple model
T. E. Gureyev, D. M. Paganin, H. M. Quiney
The problem of optimization of propagation-based phase-contrast imaging setups is considered in the case of projection X-ray imaging and three-dimensional tomography with phase ret…
Signal-to-noise and spatial resolution in in-line imaging. 2. Phase-contrast tomography
T. E. Gureyev, D. M. Paganin, K. M. Pavlov +2
In the first part of this paper, quantitative aspects of propagation-based phase-contrast imaging (PBI) were investigated using theoretical and numerical approaches, as well as exp…
Towards order of magnitude X-ray dose reduction in breast cancer imaging using phase contrast and deep denoising
Ashkan Pakzad, Robert Turnbull, Simon J. Mutch +14
Breast cancer is the most frequently diagnosed human cancer in the United States at present. Early detection is crucial for its successful treatment. X-ray mammography and digital…
Comparison of three reconstruction algorithms for low-dose phase-contrast computed tomography of the breast with synchrotron radiation
Sandro Donato, Simone Caputo, Luca Brombal +17
Three different computed tomography (CT) reconstruction algorithms: Filtered Back Projection (FBP), Unified Tomographic Reconstruction (UTR) and customized Simultaneous Algebraic R…
Signal-to-noise and spatial resolution in in-line imaging. 1. Basic theory, numerical simulations and planar experimental images
T. E. Gureyev, D. M. Paganin, H. M. Quiney
Signal-to-noise ratio and spatial resolution are quantitatively analysed in the context of in-line (propagation based) X-ray phase-contrast imaging. It is known that free-space pro…
Dark-field signal extraction in propagation-based phase-contrast imaging
T. E. Gureyev, D. M. Paganin, B. Arhatari +4
A method for extracting the dark-field signal in propagation-based phase-contrast imaging is proposed. In the case of objects consisting predominantly of a single material, or seve…