Cited 29 times in
Artifact reduction from metallic dental materials in T1-weighted spin-echo imaging at 3.0 tesla
DC Field | Value | Language |
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dc.contributor.author | 이근우 | - |
dc.date.accessioned | 2014-12-18T08:21:18Z | - |
dc.date.available | 2014-12-18T08:21:18Z | - |
dc.date.issued | 2013 | - |
dc.identifier.issn | 1053-1807 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/86151 | - |
dc.description.abstract | PURPOSE: To investigate and propose a method of artifact reduction arising from metallic dental materials by applying a slice-encoding for metal artifact correction (SEMAC) technique on T1-weighted spin-echo (SE) imaging at 3 Tesla. MATERIALS AND METHODS: The view angle tilting (VAT) technique was adapted to conventional T1-weighted spin-echo (SE) sequence to correct the in-plane distortion, and the SEMAC technique was used for correcting the remaining through-plane distortions. Fourier transform based B0 field simulations were performed to estimate the amount of field perturbation and a scout imaging method was developed which guide in selecting the number of slice-encodings needed in SEMAC sequences. Phantoms of six different dental materials with various shapes and sizes that are used in practice (amalgam; titanium implant; gold and Ni-Cr crowns; Ni-Ti and stainless steel orthodontic wires) were imaged. In vivo images of two subjects were also acquired. The amounts of artifact reduction were quantified in phantom studies. RESULTS: Compared with conventional SE imaging in phantom studies, in-plane artifacts were reduced by up to 43% in the VAT SE images and 80% in the SEMAC images. Through-plane artifacts were reduced by up to 65% in SEMAC images. In vivo SEMAC images also showed reduced artifacts. CONCLUSION: The SEMAC technique can mitigate artifact caused by metallic dental materials for T1w-SE imaging. | - |
dc.description.statementOfResponsibility | open | - |
dc.relation.isPartOf | JOURNAL OF MAGNETIC RESONANCE IMAGING | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.title | Artifact reduction from metallic dental materials in T1-weighted spin-echo imaging at 3.0 tesla | - |
dc.type | Article | - |
dc.contributor.college | College of Dentistry (치과대학) | - |
dc.contributor.department | Dept. of Prosthodontics (보철과학) | - |
dc.contributor.googleauthor | Sang-Young Zho | - |
dc.contributor.googleauthor | Min-Oh Kim | - |
dc.contributor.googleauthor | Keun-Woo Lee | - |
dc.contributor.googleauthor | Dong-Hyun Kim | - |
dc.identifier.doi | 10.1002/jmri.23785 | - |
dc.admin.author | false | - |
dc.admin.mapping | false | - |
dc.contributor.localId | A02688 | - |
dc.relation.journalcode | J01567 | - |
dc.identifier.eissn | 1522-2586 | - |
dc.identifier.url | http://onlinelibrary.wiley.com/doi/10.1002/jmri.23785/abstract | - |
dc.contributor.alternativeName | Lee, Keun Woo | - |
dc.contributor.affiliatedAuthor | Lee, Keun Woo | - |
dc.rights.accessRights | not free | - |
dc.citation.volume | 37 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 471 | - |
dc.citation.endPage | 478 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MAGNETIC RESONANCE IMAGING, Vol.37(2) : 471-478, 2013 | - |
dc.identifier.rimsid | 28813 | - |
dc.type.rims | ART | - |
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