Image artefact propagation in motion estimation and reconstruction in interventional cardiac C-arm CT
The acquisition of data for cardiac imaging using a C-arm computed tomography system
requires several seconds and multiple heartbeats. Hence, incorporation of motion correction …
requires several seconds and multiple heartbeats. Hence, incorporation of motion correction …
Swinging multi-source industrial CT systems for aperiodic dynamic imaging
The goal of this paper is to develop a new architecture for industrial computed tomography
(ICT) aiming at dynamically imaging an aperiodic changing object. We propose a data …
(ICT) aiming at dynamically imaging an aperiodic changing object. We propose a data …
Noise reduction in CT image using prior knowledge aware iterative denoising
The clinical demand for low image noise often limits the slice thickness used in many CT
applications. However, a thick-slice image is more susceptible to longitudinal partial volume …
applications. However, a thick-slice image is more susceptible to longitudinal partial volume …
Sparse-view X-ray CT reconstruction with Gamma regularization
By providing fast scanning with low radiation doses, sparse-view (or sparse-projection)
reconstruction has attracted much research attention in X-ray computerized tomography …
reconstruction has attracted much research attention in X-ray computerized tomography …
[HTML][HTML] Fast 4D cone-beam CT from 60 s acquisitions
DC Hansen, TS Sørensen - Physics and Imaging in Radiation Oncology, 2018 - Elsevier
Abstract Background & purpose Four dimensional Cone beam CT (CBCT) has many
potential benefits for radiotherapy but suffers from poor image quality, long acquisition times …
potential benefits for radiotherapy but suffers from poor image quality, long acquisition times …
Characterization of statistical prior image constrained compressed sensing. I. Applications to time‐resolved contrast‐enhanced CT
PT Lauzier, GH Chen - Medical physics, 2012 - Wiley Online Library
Purpose: Prior image constrained compressed sensing (PICCS) is an image reconstruction
framework that takes advantage of a prior image to improve the image quality of CT …
framework that takes advantage of a prior image to improve the image quality of CT …
4D imaging of two‐phase flow in porous media using laboratory‐based micro‐computed tomography
KR Tekseth, DW Breiby - Water Resources Research, 2024 - Wiley Online Library
Dynamic three‐dimensional computed tomography (CT) imaging of liquid transport in
porous media has primarily been conducted at high brilliance synchrotrons thus allowing …
porous media has primarily been conducted at high brilliance synchrotrons thus allowing …
Iterative reconstruction for photon-counting CT using prior image constrained total generalized variation
In this paper, we present an iterative reconstruction for photon-counting CT using prior
image constrained total generalized variation (PICTGV). This work aims to exploit structural …
image constrained total generalized variation (PICTGV). This work aims to exploit structural …
Adaptive non‐local means on local principle neighborhood for noise/artifacts reduction in low‐dose CT images
Purpose Low‐dose CT (LDCT) technique can reduce the x‐ray radiation exposure to
patients at the cost of degraded images with severe noise and artifacts. Non‐local means …
patients at the cost of degraded images with severe noise and artifacts. Non‐local means …
Tomosynthesis implementation with adaptive online calibration on clinical c-arm systems
K Chung, LR Schad, FG Zöllner - International journal of computer assisted …, 2018 - Springer
Purpose Cone beam computed tomography (CBCT) systems offer physicians crucial 3D and
2D imaging capabilities during interventions. However, certain medical applications only …
2D imaging capabilities during interventions. However, certain medical applications only …