CT sinogram‐consistency learning for metal‐induced beam hardening correction
Sign Up to like & getrecommendations! Published in 2018 at "Medical Physics"
DOI: 10.1002/mp.13199
Abstract: PURPOSE This paper proposes a sinogram-consistency learning method to deal with beam hardening-related artifacts in polychromatic computerized tomography (CT). The presence of highly attenuating materials in the scan field causes an inconsistent sinogram that does… read more here.
Keywords: beam hardening; sinogram consistency; learning method; consistency learning ... See more keywords
Beam-hardening in 70-kV Coronary CT angiography: Artifact reduction using an advanced post-processing algorithm.
Sign Up to like & getrecommendations! Published in 2018 at "European journal of radiology"
DOI: 10.1016/j.ejrad.2018.02.016
Abstract: PURPOSE To investigate the effect of an iterative beam-hardening correction algorithm (iBHC) on artifact reduction and image quality in coronary CT angiography (cCTA) with low tube voltage. MATERIAL AND METHODS Thirty-six patients (17 male, mean… read more here.
Keywords: image quality; algorithm; beam hardening; artifact reduction ... See more keywords
X-ray computed tomography: Practical evaluation of beam hardening in iron ore samples
Sign Up to like & getrecommendations! Published in 2019 at "Minerals Engineering"
DOI: 10.1016/j.mineng.2018.11.010
Abstract: Abstract X-ray computed tomography is a non-destructive 3D analytical technique, which in recent years has gained more widespread applications to characterise the internal structure of materials in minerals processing and metallurgical studies. Successful application of… read more here.
Keywords: mineralogy; beam hardening; sample; iron ore ... See more keywords
Decomposing a prior-CT-based cone-beam CT projection correction algorithm into scatter and beam hardening components
Sign Up to like & getrecommendations! Published in 2017 at "Physics and Imaging in Radiation Oncology"
DOI: 10.1016/j.phro.2017.09.002
Abstract: Abstract A scatter correction algorithm (SCA) for cone beam CT (CBCT) projections, making use of prior information obtained by deformable image registration of CT to CBCT, has recently been proposed and tested for particle therapy… read more here.
Keywords: beam hardening; correction; cone beam; correction algorithm ... See more keywords
Comparative performance assessment of beam hardening correction algorithms applied on simulated data sets
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Microscopy"
DOI: 10.1111/jmi.12746
Abstract: Beam hardening artefacts deteriorate the reconstructed image quality in industrial computed tomography. The appearances of beam hardening artefacts can be cupping effects or streaks. They impair the image fidelity to the object being scanned. This… read more here.
Keywords: hardening correction; algorithm; beam hardening; hardening artefacts ... See more keywords
Beam hardening artifacts of liquid embolic agents: comparison between Squid and Onyx
Sign Up to like & getrecommendations! Published in 2018 at "Journal of NeuroInterventional Surgery"
DOI: 10.1136/neurintsurg-2018-014542
Abstract: Background Initial clinical experience with Squid shows subjectively reduced artifacts on post-embolization CT scans compared with Onyx. To further investigate these observations, we aimed to perform a comparison of artifacts between Squid and Onyx in… read more here.
Keywords: hardening artifacts; beam hardening; flat panel; squid ... See more keywords
Beam hardening correction in polychromatic x-ray grating interferometry.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.024690
Abstract: The beam hardening is one of the two causes of the fringe shift distortion in polychromatic X-ray grating interferometry. Based on the assumption of the uniform energy dependence, we developed a novel analytic approach to… read more here.
Keywords: ray grating; beam hardening; polychromatic ray; grating interferometry ... See more keywords
A new approach for reducing beam hardening artifacts in polychromatic X-ray computed tomography using more accurate prior image.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of X-ray science and technology"
DOI: 10.3233/xst-17325
Abstract: PURPOSE Metal artifacts severely degrade CT image quality in clinical diagnosis, which are difficult to removed, especially for the beam hardening artifacts. The metal artifact reduction (MAR) based on prior images are the most frequently-used… read more here.
Keywords: image; beam hardening; metal; prior image ... See more keywords
Comparison of beam hardening effect of physical and enhanced dynamic wedges at bladder inhomogeneity using EBT3 film dosimeter
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Cancer Research and Therapeutics"
DOI: 10.4103/0973-1482.206244
Abstract: Introduction: Using physical wedges (PWs) to modify dose distribution and more homogeneous target coverage is a well-established technique. However, there are many problems with PWs known as beam hardening, which made them problematic. This can… read more here.
Keywords: comparison beam; dynamic wedges; beam hardening; enhanced dynamic ... See more keywords