Effect of Variant Milliampere Setting on Appearance of Metal Artifacts in Cone Beam Computed Tomography
Mohamed Elsaid Elmetwally Mowafy, E., Mahmoud Omar, H., Hamdy Mohamed Mowafy, B. (2020). Effect of Variant Milliampere Setting on Appearance of Metal Artifacts in Cone Beam Computed Tomography. EKB Journal Management System, 7(3), 50-55. doi: 10.21608/mjd.2020.198736
Eslam Mohamed Elsaid Elmetwally Mowafy; Hany Mahmoud Omar; Bassant Hamdy Mohamed Mowafy. "Effect of Variant Milliampere Setting on Appearance of Metal Artifacts in Cone Beam Computed Tomography". EKB Journal Management System, 7, 3, 2020, 50-55. doi: 10.21608/mjd.2020.198736
Mohamed Elsaid Elmetwally Mowafy, E., Mahmoud Omar, H., Hamdy Mohamed Mowafy, B. (2020). 'Effect of Variant Milliampere Setting on Appearance of Metal Artifacts in Cone Beam Computed Tomography', EKB Journal Management System, 7(3), pp. 50-55. doi: 10.21608/mjd.2020.198736
Mohamed Elsaid Elmetwally Mowafy, E., Mahmoud Omar, H., Hamdy Mohamed Mowafy, B. Effect of Variant Milliampere Setting on Appearance of Metal Artifacts in Cone Beam Computed Tomography. EKB Journal Management System, 2020; 7(3): 50-55. doi: 10.21608/mjd.2020.198736

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

Mansoura Journal of Dentistry
Article 10, Volume 7, Issue 3, September 2020, Page 50-55  XML PDF (426.65 K)
Document Type: Original Article
DOI: 10.21608/mjd.2020.198736
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Authors
Eslam Mohamed Elsaid Elmetwally Mowafy1; Hany Mahmoud Omar2; Bassant Hamdy Mohamed Mowafy3
1Master’s degree student, Department of Oral Diagnosis and Radiology, Faculty of Dentistry, Mansoura University, Egypt
2Professor of Oral and Maxillofacial Radiology, Faculty of Dentistry, Cairo University, Egypt
3Lecturer of Oral Diagnosis and Radiology, Faculty of Dentistry, Mansoura University, Egypt
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.
 
Keywords
Cone-Beam Computed Tomography; Titanium implants; Metal artifacts; Gray value
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