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Reduction of Metal Artifact in Three-Dimensional Computed Tomography(3D CT) with Dental Impression Materials

Authors
 Park, W.S.  ;  Kim, K.D.  ;  Shin, H.K.  ;  Lee, S.H. 
Citation
 IEEE ENGINEERING IN MEDICINE AND BIOLOGY MAGAZINE , : 3496-3499, 2007 
Journal Title
 IEEE ENGINEERING IN MEDICINE AND BIOLOGY MAGAZINE 
ISSN
 0739-5175 
Issue Date
2007
MeSH
Artifacts* ; Dental Impression Materials* ; Humans ; Imaging, Three-Dimensional/instrumentation* ; Imaging, Three-Dimensional/methods ; Metals* ; Phantoms, Imaging ; Radiographic Image Enhancement/instrumentation* ; Radiographic Image Enhancement/methods ; Radiography, Dental/instrumentation* ; Radiography, Dental/methods ; Reproducibility of Results ; Sensitivity and Specificity ; Tomography, X-Ray Computed/instrumentation* ; Tomography, X-Ray Computed/methods
Abstract
Metal Artifact still remains one of the main drawbacks in craniofacial Three-Dimensional Computed Tomography (3D CT). In this study, we tried to test the efficacy of additional silicone dental impression materials as a "tooth shield" for the reduction of metal artifact caused by metal restorations and orthodontic appliances. 6 phantoms with 4 teeth were prepared for this in vitro study. Orthodontic bracket, bands and amalgam restorations were placed in each tooth to reproduce various intraoral conditions. Standardized silicone shields were fabricated and placed around the teeth. CT image acquisition was performed with and without silicone shields. Maximum value, mean, and standard deviation of Hounsfield Units (HU) were compared with the presence of silicone shields. In every situation, metal artifacts were reduced in quality and quantity when silicone shields are used. Amalgam restoration made most serious metal artifact. Silicone shields made by dental impression material might be effective way to reduce the metal artifact caused by dental restoration and orthodontic appliances. This will help more excellent 3D image from 3D CT in craniofacial area.
Full Text
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4353084
DOI
10.1109/IEMBS.2007.4353084
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Surgery (구강악안면외과학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Advanced General Dentistry (통합치의학과) > 1. Journal Papers
Yonsei Authors
Kim, Kee Deog(김기덕) ORCID logo https://orcid.org/0000-0003-3055-5130
Park, Wonse(박원서) ORCID logo https://orcid.org/0000-0002-2081-1156
Lee, Sang Hwy(이상휘) ORCID logo https://orcid.org/0000-0002-9438-2489
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/96107
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