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198736

Effect of Variant Milliampere Setting on Appearance of Metal Artifacts in Cone Beam Computed Tomography

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Last updated: 23 Jan 2023

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Abstract

Objective: This study aimed to evaluate the effect of variant milliampere setting on appearance of metal artifacts in Cone Beam Computed Tomography. Methods: A dry human mandible with three titanium implants in anterior, premolar, and molar areas was scanned by CRANEX 3Dx CBCT unit utilizing variant mA setting, then,  gray values were derived to detect metal artifacts in two different trials.   Results: In our study, both trials (trial I, trial II) showed insignificant difference as P-value > 0.05,  gray values in different areas of the jaw (anterior, premolar, molar areas) showed that the amount of metal artifacts was generally insignificantly different when varying mA setting except few conditions, and there was significant difference between anterior area and posterior area (premolar, molar). Conclusions: Our results revealed that metal artifacts exist constantly around dental implant in CBCT images and the anatomical region determine the amount of artifacts, which increased anteriorly more than posteriorly. Our findings revealed that there's no obvious difference by increasing mA setting, however, from interpretation of gray values, S2 exposure setting (8mA, 90 kVp and 2.3s with 6x8cm field of view) in anterior area, H4 exposure setting (10mA, 90 kVp and 6.1s with 6x8cm field of view) in premolar and molar areas have the least mean gray value, and thereafter less amount of metal artifacts.  

DOI

10.21608/mjd.2020.198736

Keywords

Cone-beam computed tomography, Titanium implants, Metal Artifacts, Gray value

Authors

First Name

Eslam

Last Name

Mohamed Elsaid Elmetwally Mowafy

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Affiliation

Master's degree student, Department of Oral Diagnosis and Radiology, Faculty of Dentistry, Mansoura University, Egypt

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First Name

Hany

Last Name

Mahmoud Omar

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Affiliation

Professor of Oral and Maxillofacial Radiology, Faculty of Dentistry, Cairo University, Egypt

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First Name

Bassant

Last Name

Hamdy Mohamed Mowafy

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Affiliation

Lecturer of Oral Diagnosis and Radiology, Faculty of Dentistry, Mansoura University, Egypt

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Volume

7

Article Issue

3

Related Issue

28058

Issue Date

2020-09-01

Receive Date

2021-10-09

Publish Date

2020-09-01

Page Start

50

Page End

55

Print ISSN

2735-4172

Online ISSN

2812-5479

Article File

MJD_Volume 7_Issue 3_Pages 50-55.pdf

PDF . 436.9kB

Link

https://mjd.journals.ekb.eg/article_198736.html

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https://mjd.journals.ekb.eg/service?article_code=198736

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Original Article

Type Code

1,715

Publication Type

Journal

Publication Title

Mansoura Journal of Dentistry

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https://mjd.journals.ekb.eg/

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Article

Created At

23 Jan 2023