High-resolution in vivo MR imaging of intraspinal cervical nerve rootlets at 3 and 7 Tesla.
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| Title: | High-resolution in vivo MR imaging of intraspinal cervical nerve rootlets at 3 and 7 Tesla. |
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| Authors: | Galley, Julien1,2 (AUTHOR) galleyjulien@gmail.com, Sutter, Reto1 (AUTHOR), Germann, Christoph1 (AUTHOR), Wanivenhaus, Florian3 (AUTHOR), Nanz, Daniel4,5 (AUTHOR) |
| Source: | European Radiology. Jul2021, Vol. 31 Issue 7, p4625-4633. 9p. 3 Color Photographs, 2 Black and White Photographs, 2 Charts. |
| Subjects: | Cervical plexus, Magnetic resonance imaging, Spinal canal, Intraclass correlation, Cervical vertebrae |
| Abstract: | Objectives: No routine imaging technology allows reliable visualization of nerve rootlets inside the spinal canal with positive contrast. The stronger MR signal at 7 T, with optimized protocols, may offer a solution. The purpose was to evaluate the potential of 3D Dual-Echo Steady-State (DESS) MR imaging of the cervical spine at 3 and 7 T in assessing the micro-anatomy of the nerve rootlets. Materials/methods: This prospective study was approved by the local ethics committee. Twenty-one patients, clinically referred to cervical-spine MRI, underwent additional MR exams at 3 T and 7 T, each of which consisted of a single 3D-DESS series with equal acquisition times. Artifacts, visualization quality, and number of identified rootlets (C2 to C8) were rated by two musculoskeletal radiologists. Results were compared by Wilcoxon tests. Interobserver reliability was assessed using weighted κ statistics and intraclass correlation coefficient (ICC). Results: Intraspinal rootlets could successfully be visualized at both field strengths. Rating differences for artifacts and quality of rootlet depiction were not significant for the two field strengths. The mean number of identified rootlets was larger for 7-T than for 3-T MR for every assessed nerve; however, this difference was not statistically significant using the Bonferroni correction (p values ranging from 0.002 to 0.53). Interobserver agreement was substantial to almost perfect (weighted κ values of 0.69 and 0.82). The ICC for the number of identified rootlets was 0.80. Conclusion: Non-invasive 3D-DESS MR-imaging at 3 and 7 T has the potential to provide precise assessments of the micro-anatomy of intraspinal cervical nerve roots. Key Points: • Cervical rootlets can be successfully visualized with positive contrast using 3D-DESS MR-imaging. • 3D-DESS MR-imaging at 3 and 7 T provides precise assessments of the micro-anatomy of cervical nerves. • The mean number of identified cervical rootlets using 3D-DESS was larger for 7 T than for 3 T MR; however, this difference was not statistically significant. [ABSTRACT FROM AUTHOR] |
| Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 150974484 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: High-resolution in vivo MR imaging of intraspinal cervical nerve rootlets at 3 and 7 Tesla. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Galley%2C+Julien%22">Galley, Julien</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> galleyjulien@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Sutter%2C+Reto%22">Sutter, Reto</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Germann%2C+Christoph%22">Germann, Christoph</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wanivenhaus%2C+Florian%22">Wanivenhaus, Florian</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nanz%2C+Daniel%22">Nanz, Daniel</searchLink><relatesTo>4,5</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22European+Radiology%22">European Radiology</searchLink>. Jul2021, Vol. 31 Issue 7, p4625-4633. 9p. 3 Color Photographs, 2 Black and White Photographs, 2 Charts. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Cervical+plexus%22">Cervical plexus</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+resonance+imaging%22">Magnetic resonance imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Spinal+canal%22">Spinal canal</searchLink><br /><searchLink fieldCode="DE" term="%22Intraclass+correlation%22">Intraclass correlation</searchLink><br /><searchLink fieldCode="DE" term="%22Cervical+vertebrae%22">Cervical vertebrae</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Objectives: No routine imaging technology allows reliable visualization of nerve rootlets inside the spinal canal with positive contrast. The stronger MR signal at 7 T, with optimized protocols, may offer a solution. The purpose was to evaluate the potential of 3D Dual-Echo Steady-State (DESS) MR imaging of the cervical spine at 3 and 7 T in assessing the micro-anatomy of the nerve rootlets. Materials/methods: This prospective study was approved by the local ethics committee. Twenty-one patients, clinically referred to cervical-spine MRI, underwent additional MR exams at 3 T and 7 T, each of which consisted of a single 3D-DESS series with equal acquisition times. Artifacts, visualization quality, and number of identified rootlets (C2 to C8) were rated by two musculoskeletal radiologists. Results were compared by Wilcoxon tests. Interobserver reliability was assessed using weighted κ statistics and intraclass correlation coefficient (ICC). Results: Intraspinal rootlets could successfully be visualized at both field strengths. Rating differences for artifacts and quality of rootlet depiction were not significant for the two field strengths. The mean number of identified rootlets was larger for 7-T than for 3-T MR for every assessed nerve; however, this difference was not statistically significant using the Bonferroni correction (p values ranging from 0.002 to 0.53). Interobserver agreement was substantial to almost perfect (weighted κ values of 0.69 and 0.82). The ICC for the number of identified rootlets was 0.80. Conclusion: Non-invasive 3D-DESS MR-imaging at 3 and 7 T has the potential to provide precise assessments of the micro-anatomy of intraspinal cervical nerve roots. Key Points: • Cervical rootlets can be successfully visualized with positive contrast using 3D-DESS MR-imaging. • 3D-DESS MR-imaging at 3 and 7 T provides precise assessments of the micro-anatomy of cervical nerves. • The mean number of identified cervical rootlets using 3D-DESS was larger for 7 T than for 3 T MR; however, this difference was not statistically significant. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00330-020-07557-3 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 4625 Subjects: – SubjectFull: Cervical plexus Type: general – SubjectFull: Magnetic resonance imaging Type: general – SubjectFull: Spinal canal Type: general – SubjectFull: Intraclass correlation Type: general – SubjectFull: Cervical vertebrae Type: general Titles: – TitleFull: High-resolution in vivo MR imaging of intraspinal cervical nerve rootlets at 3 and 7 Tesla. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Galley, Julien – PersonEntity: Name: NameFull: Sutter, Reto – PersonEntity: Name: NameFull: Germann, Christoph – PersonEntity: Name: NameFull: Wanivenhaus, Florian – PersonEntity: Name: NameFull: Nanz, Daniel IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 09387994 Numbering: – Type: volume Value: 31 – Type: issue Value: 7 Titles: – TitleFull: European Radiology Type: main |
| ResultId | 1 |
