Analyzing radiation absorption difference of dental substance by using Dual CT

Autor: H. Yu, Y.S. Ju, Han-Joon Yang, Ho-Nyeon Lee, Jae-Hwan Cho
Rok vydání: 2015
Předmět:
Zdroj: Radiation Effects and Defects in Solids. 170:601-609
ISSN: 1029-4953
1042-0150
DOI: 10.1080/10420150.2015.1073287
Popis: The purpose of this study was to evaluate the changes of noise and computer tomography (CT) number in each dental substance, by using the metal artefact reduction algorithm; we used dual CT for this study. For the study, we produced resin, titanium, gypsum, and wax that are widely used by dentists. In addition, we made nickel to increase the artefact. While making the study materials, we made sure that there is no difficulty when inserting the substances inside phantom. In order to study, we scanned before and after using the metal artefact reduction algorithm. We conducted an average analysis of CT number and noise, before and after using the metal artefact reduction algorithm. As a result, there was no difference in CT number and noise before and after using the metal artefact reduction algorithm. However, when it comes to the noise value in each substance, wax's noise value was the lowest whereas titanium's noise value was the highest, after applying the metal artefact reduction algorithm. In nickel, C...
Databáze: OpenAIRE
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