Moving metal artifact reduction in cone-beam CT scans with implanted cylindrical gold markers

2014 ◽  
Vol 41 (12) ◽  
pp. 121710 ◽  
Author(s):  
Jakob Toftegaard ◽  
Walther Fledelius ◽  
Dieter Seghers ◽  
Michael Huber ◽  
Marcus Brehm ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Ct Scans ◽  
Cone Beam ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction

OC-0081: Motion and metal artifact reduction in cone beam CT with implanted cylindrical gold markers

2014 ◽  
Vol 111 ◽  
pp. S31-S32
Author(s):  
J. Toftegaard ◽  
W. Fledelius ◽  
D. Seghers ◽  
M. Huber ◽  
E.S. Worm ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Cone Beam ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction

scholarly journals The impact of software-based metal artifact reduction on the liquid embolic agent Onyx in cone-beam CT: a systematic in vitro and in vivo study

2021 ◽  
pp. neurintsurg-2021-018018
Author(s):  
Niclas Schmitt ◽  
Charlotte S Weyland ◽  
Lena Wucherpfennig ◽  
Christof M Sommer ◽  
Martin Bendszus ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Brain Parenchyma ◽  
Cone Beam ◽  
Embolic Agent ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction ◽  
The Impact

BackgroundOnyx is frequently used for endovascular embolization of intracranial arteriovenous malformations (AVMs) and dural arteriovenous fistulas (dAVFs). One drawback of using Onyx is the generation of artifacts in cone-beam CT (CBCT). These artifacts can represent an obstacle for the detection of periprocedural hemorrhage or planning of subsequent radiosurgery. This study investigates the effect of artifact reduction by the syngo DynaCT SMART Metal Artifact Reduction (MAR) software.MethodsA standardized in vitro tube model (n=10) was filled with Onyx 18 and CBCT image acquisition was conducted in a brain imaging phantom. Furthermore, post-interventional CBCT images of 20 patients with AVM (n=13) or dAVF (n=7), each treated with Onyx, were investigated. The MAR software was applied for artifact reduction. Artifacts of the original and the post-processed images were analyzed quantitatively (standard deviation in a region of interest on the layer providing the most artifacts) and qualitatively. For the patient images, the effect of the MAR software on brain parenchyma on artifact-free images was further investigated.ResultsQuantitative and qualitative analyses of both datasets demonstrated a lower degree of artifacts in the post-processed images (eg, patient images: 38.30±22.03 density units (no MAR; mean SD±SD) vs 19.83±12.31 density units (with MAR; p<0.001). The MAR software had no influence on the brain parenchyma in artifact-free images.ConclusionThe MAR software significantly reduced the artifacts evoked by Onyx in CBCT without affecting the visualization of brain parenchyma on artifact-free images. Applying this software could thus improve the quality of periprocedural CBCT images after embolization with Onyx.

scholarly journals E-021 Quantitative Evaluation of Metal Artifact Reduction for Coiled Aneurysms in Cone-Beam CT

2016 ◽  
Vol 8 (Suppl 1) ◽  
pp. A56.1-A56
Author(s):  
D Ruijters ◽  
P van de Haar ◽  
G Kaila ◽  
T Grünhagen ◽  
J Moret ◽  
...  
Keyword(s):  
Quantitative Evaluation ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction

scholarly journals Known-component metal artifact reduction (KC-MAR) for cone-beam CT

2019 ◽  
Vol 64 (16) ◽  
pp. 165021 ◽  
Author(s):  
A Uneri ◽  
X Zhang ◽  
T Yi ◽  
J W Stayman ◽  
P A Helm ◽  
...  
Keyword(s):  
Cone Beam Ct ◽  
Cone Beam ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction

scholarly journals Evaluation of Software-Based Metal Artifact Reduction in Intraoperative 3D Imaging of the Spine Using a Mobile Cone Beam CT

2020 ◽  
Vol 33 (5) ◽  
pp. 1136-1143
Author(s):  
Maxim Privalov ◽  
Marcus Mohr ◽  
Benedict Swartman ◽  
Nils Beisemann ◽  
Holger Keil ◽  
...  
Keyword(s):  
3D Imaging ◽  
Cone Beam Ct ◽  
Cone Beam ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction ◽  
Intraoperative 3D Imaging
Sign in / Sign up

Export Citation Format

Share Document