Combination of Iterative Metal Artifact Reduction and Virtual Monoenergetic Reconstruction Using Split-Filter Dual-Energy CT in Patients With Dental Artifact on Head and Neck CT

2021 ◽  
Author(s):  
Alexander Marcel Alfred Schmidt ◽  
Jan-Peter Grunz ◽  
Bernhard Petritsch ◽  
Philipp Gruschwitz ◽  
Jonas Knarr ◽  
...  
Keyword(s):  
Head And Neck ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction

Dual-energy CT with virtual monochromatic images and metal artifact reduction software for reducing metallic dental artifacts

2017 ◽  
Vol 58 (11) ◽  
pp. 1312-1319 ◽  
Author(s):  
Jihoon Cha ◽  
Hyung-Jin Kim ◽  
Sung Tae Kim ◽  
Yi Kyung Kim ◽  
Ha Youn Kim ◽  
...  
Keyword(s):  
Image Quality ◽  
Head And Neck ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction ◽  
Monochromatic Imaging ◽  
Dental Prostheses ◽  
Ct Data

Background Metallic dental prostheses may degrade image quality on head and neck computed tomography (CT). However, there is little information available on the use of dual-energy CT (DECT) and metal artifact reduction software (MARS) in the head and neck regions to reduce metallic dental artifacts. Purpose To assess the usefulness of DECT with virtual monochromatic imaging and MARS to reduce metallic dental artifacts. Material and Methods DECT was performed using fast kilovoltage (kV)-switching between 80-kV and 140-kV in 20 patients with metallic dental prostheses. CT data were reconstructed with and without MARS, and with synthesized monochromatic energy in the range of 40–140-kiloelectron volt (keV). For quantitative analysis, the artifact index of the tongue, buccal, and parotid areas was calculated for each scan. For qualitative analysis, two radiologists evaluated 70-keV and 100-keV images with and without MARS for tongue, buccal, parotid areas, and metallic denture. The locations and characteristics of the MARS-related artifacts, if any, were also recorded. Results DECT with MARS markedly reduced metallic dental artifacts and improved image quality in the buccal area ( P < 0.001) and the tongue ( P < 0.001), but not in the parotid area. The margin and internal architecture of the metallic dentures were more clearly delineated with MARS ( P < 0.001) and in the higher-energy images than in the lower-energy images ( P = 0.042). MARS-related artifacts most commonly occurred in the deep center of the neck. Conclusion DECT with MARS can reduce metallic dental artifacts and improve delineation of the metallic prosthesis and periprosthetic region.

scholarly journals Metal artifact reduction by monoenergetic extrapolation of dual-energy CT in patients with metallic implants

2019 ◽  
Vol 27 (2) ◽  
pp. 230949901985117 ◽  
Author(s):  
Ka Yin Gregory Lee ◽  
Hei Man Joyce Cheng ◽  
Chi Yeung Chu ◽  
Chi Wai Annie Tam ◽  
Wai Kuen Kan
Keyword(s):  
Dual Energy ◽  
Dual Energy Ct ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction ◽  
Metallic Implants ◽  
Monoenergetic Extrapolation

Reduction of Metal Artifact with Dual-Energy CT: Virtual Monospectral Imaging with Fast Kilovoltage Switching and Metal Artifact Reduction Software

2015 ◽  
Vol 19 (05) ◽  
pp. 446-455 ◽  
Author(s):  
Jean-Michel Sverzut ◽  
Raphaël Campagna ◽  
Henri Guerini ◽  
Antoine Feydy ◽  
Jean-Luc Drapé ◽  
...  
Keyword(s):  
Dual Energy ◽  
Dual Energy Ct ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction

Metal Artifact Reduction in Virtual Monoenergetic Spectral Dual-Energy CT of Patients With Metallic Orthopedic Implants in the Distal Radius

2018 ◽  
Vol 211 (5) ◽  
pp. 1083-1091 ◽  
Author(s):  
Hye Jin Yoo ◽  
Sung Hwan Hong ◽  
Bo Mi Chung ◽  
Sun Jeong Moon ◽  
Ja-Young Choi ◽  
...  
Keyword(s):  
Distal Radius ◽  
Orthopedic Implants ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction

TH-D-332-01: The Use of Dual-Energy CT Images for Monte Carlo Treatment Planning: Material Extraction and Metal Artifact Reduction

2008 ◽  
Vol 35 (6Part27) ◽  
pp. 2990-2990
Author(s):  
M Bazalova ◽  
L Beaulieu ◽  
J Carrier ◽  
E Vigneault ◽  
F Verhaegen
Keyword(s):  
Monte Carlo ◽  
Treatment Planning ◽  
Ct Images ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction ◽  
Material Extraction

Complementary contrast media for metal artifact reduction in dual-energy CT

2015 ◽  
Author(s):  
Jack W. Lambert ◽  
Peter M. Edic ◽  
Paul Fitzgerald ◽  
Andrew S. Torres ◽  
Benjamin M. Yeh
Keyword(s):  
Contrast Media ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction

SU-F-J-73: Simple Approach for Quantification of Metal Artifact Reduction Capabalities of Dual-Energy CT

2016 ◽  
Vol 43 (6Part9) ◽  
pp. 3423-3423
Author(s):  
N Lamichhane ◽  
K Padgett ◽  
X Li ◽  
I Mihaylov
Keyword(s):  
Dual Energy ◽  
Simple Approach ◽  
Dual Energy Ct ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction

Comparison of metal artifact reduction using single-energy CT and dual-energy CT with various metallic implants in cadavers

2020 ◽  
Vol 133 ◽  
pp. 109357
Author(s):  
Izabella Barreto ◽  
Eric Pepin ◽  
Ivan Davis ◽  
Cooper Dean ◽  
Tara Massini ◽  
...  
Keyword(s):  
Dual Energy ◽  
Dual Energy Ct ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction ◽  
Metallic Implants

Benefits of iterative metal artifact reduction and dual-energy CT towards mitigating artifact in the setting of total shoulder prostheses

2020 ◽  
Vol 50 (1) ◽  
pp. 51-58
Author(s):  
Payam Mohammadinejad ◽  
Francis I. Baffour ◽  
Mark C. Adkins ◽  
Lifeng Yu ◽  
Cynthia H. McCollough ◽  
...  
Keyword(s):  
Dual Energy ◽  
Dual Energy Ct ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction

Clinical Assessment of Metal Artifact Reduction Methods in Dual-Energy CT Examinations of Instrumented Spines

2019 ◽  
Vol 212 (2) ◽  
pp. 395-401 ◽  
Author(s):  
Zaiyang Long ◽  
David R. DeLone ◽  
Amy L. Kotsenas ◽  
Vance T. Lehman ◽  
Alex A. Nagelschneider ◽  
...  
Keyword(s):  
Clinical Assessment ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Artifact Reduction ◽  
Metal Artifact ◽  
Metal Artifact Reduction ◽  
Reduction Methods
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