89 citations · 183 across the 17 of their papers we have counts for
10 papers · 1 filter
Phase-contrast micro-CT for intra-operative breast tumour margin assessment using a microfocus x-ray source and photon-counting detector
Michelle K. Croughan, Timur E. Gureyev, Jane Fox +5
Objective: Intra-operative tumour margin assessment during breast-conserving surgery requires rapid, high-resolution imaging of excised tissue, allowing the surgical team to take a…
Fast unified reconstruction algorithm for conventional, phase-contrast and diffraction tomography
Timur E. Gureyev, Hamish G. Brown, Harry M. Quiney +1
A unified method for three-dimensional reconstruction of objects from transmission images collected at multiple illumination directions is described. The method may be applicable t…
Three-dimensional contrast transfer function in phase-contrast tomography
Darren A. Thompson, Yakov I. Nesterets, Konstantin M. Pavlov +1
A new method is developed for three-dimensional (3D) reconstruction of multi-material objects using propagation-based X-ray phase-contrast tomography (PB-CT) with phase retrieval v…
Tomographic phase and attenuation extraction for a sample composed of unknown materials using X-ray propagation-based phase-contrast imaging
Samantha J. Alloo, David M. Paganin, Kaye S. Morgan +9
Propagation-based phase-contrast X-ray imaging (PB-PCXI) generates image contrast by utilizing sample-imposed phase-shifts. This has proven useful when imaging weakly-attenuating s…
Fast three-dimensional phase retrieval in propagation-based x-ray tomography
Darren Thompson, Yakov I. Nesterets, Konstantin M. Pavlov +1
The following paper describes a method for three-dimensional (3D) reconstruction of multi-material objects based on propagation-based X-ray phase-contrast tomography (PB-CT) with p…
CT dose reduction factors in the thousands using X-ray phase contrast
Marcus J. Kitchen, Genevieve A. Buckley, Timur E. Gureyev +6
Phase-contrast X-ray imaging can improve the visibility of weakly absorbing objects (e.g. soft tissues) by an order of magnitude or more compared to conventional radiographs. Previ…
On spatial resolution, signal-to-noise and information capacity of linear imaging systems
Timur Gureyev, Yakov Nesterets, Frank de Hoog
A simple model for image formation in linear shift-invariant systems is considered, in which both the detected signal and the noise variance are varying slowly compared to the poin…
Evaluating the Performance of BSBL Methodology for EEG Source Localization On a Realistic Head Model
Sajib Saha, Rajib Rana, Ya. I. Nesterets +3
Source localization in EEG represents a high dimensional inverse problem, which is severely ill-posed by nature. Fortunately, sparsity constraints have come into rescue as it helps…
Linear algorithms for phase retrieval in the Fresnel region: validity conditions
T. E. Gureyev, Ya. I. Nesterets
We describe the relationship between different forms of linearized expressions for the spatial distribution of intensity of X-ray projection images obtained in the Fresnel region.…
Evaluation of Spatial Resolution and Noise Sensitivity of sLORETA Method for EEG Source Localization Using Low-Density Headsets
Sajib Saha, Yakov I. Nesterets, Murat Tahtali +1
Electroencephalography (EEG) has enjoyed considerable attention over the past century and has been applied for diagnosis of epilepsy, stroke, traumatic brain injury and other disor…