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Open Access 01-12-2020 | Original Article

Clinical application of multi-material artifact reduction (MMAR) technique in Revolution CT to reduce metallic dental artifacts

Authors: Yijuan Wei, Fei Jia, Ping Hou, Kaiji Zha, Shi Pu, Jianbo Gao

Published in: Insights into Imaging | Issue 1/2020

Abstract

Background

This study aimed to explore the performance of Revolution CT virtual monoenergetic images (VMI) combined with the multi-material artifact reduction (MMAR) technique in reducing metal artifacts in oral and maxillofacial imaging.

Results

There were significant differences in image quality scores between VMI + MMAR images and VMI+MARS (multiple artifact reduction system) images at each monochromatic energy level (p = 0.000). Compared with the MARS technology, the MMAR technology further reduced metal artifacts and improved the image quality. At VMI_{90 keV} and VMI_{110 keV}, the SD, CNR, and AI in the Revolution CT group were significantly lower than in the Discovery CT, but no significant differences in these parameters were found between two groups at VMI_{50 keV}, VMI_{70 keV}, and VMI_{130 keV} (p > 0.05). The attenuation was comparable between two groups at any energy level (p > 0.05).

Conclusions

Compared with the MARS reconstruction technique of Discovery CT, the MMAR technique of Revolution CT is better to reduce the artifacts of dental implants in oral and maxillofacial imaging, which improves the image quality and the diagnostic value of surrounding soft tissues.

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Title: Clinical application of multi-material artifact reduction (MMAR) technique in Revolution CT to reduce metallic dental artifacts
Authors: Yijuan Wei
Fei Jia
Ping Hou
Kaiji Zha
Shi Pu
Jianbo Gao
Publication date: 01-12-2020
Publisher: Springer Berlin Heidelberg
Published in: Insights into Imaging / Issue 1/2020
Electronic ISSN: 1869-4101
DOI: https://doi.org/10.1186/s13244-020-0836-1

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Clinical application of multi-material artifact reduction (MMAR) technique in Revolution CT to reduce metallic dental artifacts

Abstract

Background

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Results

Conclusions

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