Evaluation of beam hardening artifacts around dental implants: CT study on bovine ribs

Balkan Journal of Dental Medicine

article

Serindere Gozde¹  Aktuna Belgin Ceren¹  Serindere Mehmet²  Berkay Belgin Huseyin³  Orhan Kaan⁴ 

[1] Hatay Mustafa Kemal University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology;Hatay Education and Research Hospital, Department of Radiology;Private Dental Clinic;Ankara University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Ankara, Turkey + Ankara University, Medical Design Application and Research Center

关键词: beam hardening artifact;    bone density;    computed tomography;    dental implant;   

DOI  :  10.5937/bjdm2301028S

学科分类：社会科学、人文和艺术（综合）

来源: Walter de Gruyter GmbH

【 摘 要 】

Background/Aim: The aim of this study was to evaluate beam hardening artifacts generated by Grade 4 and Grade 5 dental implants on computed tomography (CT) images at low and high kilovoltage peaks (kVp). Material and Methods: A total of 16 implants, 8 of which were Grade 4 and 8 were Grade 5, were inserted into bovine ribs. CT images of bovine ribs were acquired using two different exposure protocol: low kVp and high kVp. Beam hardening artifacts generated by Grade 4 and Grade 5 dental implants were calculated by the mean Hounsfield unit (HU) within a standardized region-of-interest (ROI). Results: Artifact in Grade 4 implants were greater than that in Grade 5 implants. Also, artifacts at the high kVp were lower than that at the low kVp. Conclusions: CT scans providing HU values can be used to evaluate the beam hardening artifact. Beam hardening artifacts decreased in the CT images with high kVp. Grade 5 dental implants have an advantage by producing less severe beam hardening artifacts.

【 授权许可】

CC BY