Effect of metallic materials on magnetic resonance image uniformity: a quantitative experimental study

Shimamoto, Hiroaki; Felemban, Doaa; Uchimoto, Yuka; Matsuda, Nobuhiko; Takagawa, Naoko; Takeshita, Ami; Iwamoto, Yuri; Okahata, Ryoko; Tsujimoto, Tomomi; Kreiborg, Sven; Mallya, Sanjay M.; Yang, Fan pei Gloria

doi:https://doi.org/10.1007/s11282-024-00778-y

Effect of metallic materials on magnetic resonance image uniformity: a quantitative experimental study

Shimamoto, Hiroaki; Felemban, Doaa; Uchimoto, Yuka et al.

Oral Radiology, 2024, 41(1), 78-87

アクセス数:759件（2025-07-19 21:35 集計）

固定URL: https://hdl.handle.net/11094/98398

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タイトル	Effect of metallic materials on magnetic resonance image uniformity: a quantitative experimental study
著者	NRID 1000030448112 1000030448112 researchmap permalink read0127765 read0127765 Scopus Author ID 14026102500 14026102500 著者名 Shimamoto, Hiroaki
	著者名 Felemban, Doaa
	著者名 Uchimoto, Yuka
	著者名 Matsuda, Nobuhiko
	著者名 Takagawa, Naoko
	著者名 Takeshita, Ami
	著者名 Iwamoto, Yuri
	著者名 Okahata, Ryoko
	NRID 1000000632150 1000000632150 researchmap permalink 6221 6221 Scopus Author ID 36887663900 36887663900 著者名 Tsujimoto, Tomomi
	著者名 Kreiborg, Sven
	著者名 Mallya, Sanjay M.
	ORCID 0000-0001-6133-0706 0000-0001-6133-0706 Scopus Author ID 34972160300 34972160300 著者名 Yang, Fan pei Gloria
キーワード等	Image uniformity
	Metallic materials
	MRI
	Quantitative study
内容	The version of record of this article, first published in Oral Radiology, is available online at Publisher’s website: https://doi.org/10.1007/s11282-024-00778-y.
抄録	Objective: To assess quantitatively the effect of metallic materials on MR image uniformity using a standardized method. Methods: Six types of 1 cm cubic metallic materials (i.e., Au, Ag, Al, Au–Ag–Pd alloy, Ti, and Co–Cr alloy) embedded in a glass phantom filled were examined and compared with no metal condition inserted as a reference. The phantom was scanned five times under each condition using a 1.5-T MR superconducting magnet scanner with an 8-channel phased-array brain coil and head and neck coil. For each examination, the phantom was scanned in three planes: axial, coronal, and sagittal using T1-weighted spin echo (SE) and gradient echo (GRE) sequences in accordance with the American Society for Testing and Materials (ASTM) F2119-07 standard. Image uniformity was assessed using the non-uniformity index (NUI), which was developed by the National Electrical Manufacturers Association (NEMA), as an appropriate standardized measure for investigating magnetic field uniformity. Results: T1-GRE images with Co–Cr typically elicited the lowest uniformity, followed by T1-GRE images with Ti, while all other metallic materials did not affect image uniformity. In particular, T1-GRE images with Co–Cr showed significantly higher NUI values as far as 6.6 cm at maximum equivalent to 11 slices centering around it in comparison with the measurement uncertainty from images without metallic materials. Conclusion: We found that MR image uniformity was influenced by the scanning sequence and coil type when Co–Cr and Ti were present. It is assumed that the image non-uniformity in Co–Cr and Ti is caused by their high magnetic susceptibility.
出版者	Springer
収録物名	Oral Radiology
巻(号)	41(1)
ページ	78-87
刊行年月	2024-10-15
言語	英語
ハンドルURL	https://hdl.handle.net/11094/98398
PISSN	09116028
eISSN	16139674
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1007/s11282-024-00778-y
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCTERMS.bibliographicCitation	Oral Radiology. 2024, 41(1), p. 78-87
DC.title	Effect of metallic materials on magnetic resonance image uniformity: a quantitative experimental study
DC.creator	Shimamoto, Hiroaki
	Felemban, Doaa
	Uchimoto, Yuka
	Matsuda, Nobuhiko
	Takagawa, Naoko
	Takeshita, Ami
	Iwamoto, Yuri
	Okahata, Ryoko
	Tsujimoto, Tomomi
	Kreiborg, Sven
	Mallya, Sanjay M.
	Yang, Fan pei Gloria
DC.publisher	Springer
DC.language' scheme='DCTERMS.RFC1766	英語
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2024-10-15
DC.identifier	https://doi.org/10.1007/s11282-024-00778-y
DC.subject	Image uniformity
	Metallic materials
	MRI
	Quantitative study
DC.description	The version of record of this article, first published in Oral Radiology, is available online at Publisher’s website: https://doi.org/10.1007/s11282-024-00778-y.
DCTERMS.abstract	Objective: To assess quantitatively the effect of metallic materials on MR image uniformity using a standardized method. Methods: Six types of 1 cm cubic metallic materials (i.e., Au, Ag, Al, Au–Ag–Pd alloy, Ti, and Co–Cr alloy) embedded in a glass phantom filled were examined and compared with no metal condition inserted as a reference. The phantom was scanned five times under each condition using a 1.5-T MR superconducting magnet scanner with an 8-channel phased-array brain coil and head and neck coil. For each examination, the phantom was scanned in three planes: axial, coronal, and sagittal using T1-weighted spin echo (SE) and gradient echo (GRE) sequences in accordance with the American Society for Testing and Materials (ASTM) F2119-07 standard. Image uniformity was assessed using the non-uniformity index (NUI), which was developed by the National Electrical Manufacturers Association (NEMA), as an appropriate standardized measure for investigating magnetic field uniformity. Results: T1-GRE images with Co–Cr typically elicited the lowest uniformity, followed by T1-GRE images with Ti, while all other metallic materials did not affect image uniformity. In particular, T1-GRE images with Co–Cr showed significantly higher NUI values as far as 6.6 cm at maximum equivalent to 11 slices centering around it in comparison with the measurement uncertainty from images without metallic materials. Conclusion: We found that MR image uniformity was influenced by the scanning sequence and coil type when Co–Cr and Ti were present. It is assumed that the image non-uniformity in Co–Cr and Ti is caused by their high magnetic susceptibility.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	98398
citation_title	Effect of metallic materials on magnetic resonance image uniformity: a quantitative experimental study
citation_author	Shimamoto, Hiroaki
	Felemban, Doaa
	Uchimoto, Yuka
	Matsuda, Nobuhiko
	Takagawa, Naoko
	Takeshita, Ami
	Iwamoto, Yuri
	Okahata, Ryoko
	Tsujimoto, Tomomi
	Kreiborg, Sven
	Mallya, Sanjay M.
	Yang, Fan pei Gloria
citation_publisher	Springer
citation_language	英語
citation_date	2024-10-15
citation_journal_title	Oral Radiology
citation_volume	41
citation_issue	1
citation_firstpage	78
citation_lastpage	87
citation_doi	https://doi.org/10.1007/s11282-024-00778-y
citation_public_url	https://hdl.handle.net/11094/98398

Effect of metallic materials on magnetic resonance image uniformity: a quantitative experimental study

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