Fiducial marker‐based correction for involuntary motion in weight‐bearing C‐arm CT scanning of knees. II. Experiment
Purpose: AC‐arm CT system has been shown to be capable of scanning a single cadaver
leg under loaded conditions by virtue of its highly flexible acquisition trajectories. In Part I of …
leg under loaded conditions by virtue of its highly flexible acquisition trajectories. In Part I of …
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 …
[PDF][PDF] Motion compensated fan-beam CT by enforcing fourier properties of the sinogram
In computed tomography involuntary patient motion can lead to a severe degradation of
image quality. Most of the motion estimation methods rely on additional information, such as …
image quality. Most of the motion estimation methods rely on additional information, such as …
[PDF][PDF] Estimation of missing fan-beam projections using frequency consistency conditions
Reducing radiation dose is a crucial problem in computed tomography. One approach is to
undersample the projections and compensate for the missing ones using an estimation …
undersample the projections and compensate for the missing ones using an estimation …
[PDF][PDF] Improved trajectories in C-Arm computed tomography for non-circular fields of view
In C-arm computed tomography, the field of view (FOV) is often not sufficient to acquire
certain anatomical structures, eg a full hip or thorax. Recently proposed methods to extend …
certain anatomical structures, eg a full hip or thorax. Recently proposed methods to extend …
Effective one step-iterative fiducial marker-based compensation for involuntary motion in weight-bearing C-arm cone-beam CT scanning of knees
We previously introduced three different fiducial marker-based correction methods (2D
projection shifting, 2D projection warping, and 3D image warping) for patients' involuntary …
projection shifting, 2D projection warping, and 3D image warping) for patients' involuntary …
Interventional heart wall motion analysis with cardiac C-arm CT systems
Today, quantitative analysis of three-dimensional (3D) dynamics of the left ventricle (LV)
cannot be performed directly in the catheter lab using a current angiographic C-arm system …
cannot be performed directly in the catheter lab using a current angiographic C-arm system …
Fast interpolation of dense motion fields from synthetic phantoms
A Maier, O Taubmann, J Wetzl, J Wasza… - … 16. bis 18. März 2014 in …, 2014 - Springer
Numerical phantoms are a common tool for the evaluation of registration and reconstruction
algorithms. For applications concerning motion, dense deformation fields are of particular …
algorithms. For applications concerning motion, dense deformation fields are of particular …
Acquisition of 3D Knee Morphology Under Weight-Bearing Conditions Using a C-arm CT Scanner for the Assessment of Knee Disorders
JH Choi - 2014 - search.proquest.com
A C-arm-based cone-beam computed tomography (CBCT) scanner with a digital flat-panel
detector represents a promising imaging system for the evaluation of static 3D joint positions …
detector represents a promising imaging system for the evaluation of static 3D joint positions …
[PDF][PDF] Material Decomposition for Energy Resolving Detectors using Weighted Levenberg-Marquardt Optimization
Material Decomposition for Energy Resolving Detectors using Weighted Levenberg-Marquardt
Optimization Page 1 Material Decomposition for Energy Resolving Detectors using Weighted …
Optimization Page 1 Material Decomposition for Energy Resolving Detectors using Weighted …