Simple and robust saturation-based slice selection for ultrashort echo time MRI.
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| Title: | Simple and robust saturation-based slice selection for ultrashort echo time MRI. |
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| Authors: | Harkins, Kevin D.1, Horch, R. Adam1,2, Does, Mark D.1,2,3,4 |
| Source: | Magnetic Resonance in Medicine. Jun2015, Vol. 73 Issue 6, p2204-2211. 8p. |
| Abstract: | Purpose To present a new method for localizing signal within a two-dimensional (2D) slice suitable for ultrashort echo time (UTE) imaging, called saturation-based UTE (sat-UTE). The new method digitally subtracts two acquisitions that are nonselectively excited with and without selective saturation of the slice of interest. Methods Sat-UTE was compared with half-pulse and double-half pulse excited UTE within phantoms, as well as 3D-UTE within ex vivo femur and in vivo tibia. Numerical simulations were also used to quantify the effects of slice profile broadening and signal component amplitudes for quantitative UTE. Results Sat-UTE is robust to suppress out-of-slice signal, and produces short T2 signal decay curves comparable to 3D-UTE, but has a lower signal to noise ratio efficiency compared with other slice-selective methods. Conclusion The proposed method is useful for fast, quantitative evaluation of short T2 signals, and is insensitive to gradient performance. Magn Reson Med 73:2204-2211, 2015. © 2014 Wiley Periodicals, Inc. [ABSTRACT FROM AUTHOR] |
| Copyright of Magnetic Resonance in Medicine is the property of Wiley-Blackwell 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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| Items | – Name: Title Label: Title Group: Ti Data: Simple and robust saturation-based slice selection for ultrashort echo time MRI. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Harkins%2C+Kevin+D%2E%22">Harkins, Kevin D.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Horch%2C+R%2E+Adam%22">Horch, R. Adam</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Does%2C+Mark+D%2E%22">Does, Mark D.</searchLink><relatesTo>1,2,3,4</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Magnetic+Resonance+in+Medicine%22">Magnetic Resonance in Medicine</searchLink>. Jun2015, Vol. 73 Issue 6, p2204-2211. 8p. – Name: Abstract Label: Abstract Group: Ab Data: Purpose To present a new method for localizing signal within a two-dimensional (2D) slice suitable for ultrashort echo time (UTE) imaging, called saturation-based UTE (sat-UTE). The new method digitally subtracts two acquisitions that are nonselectively excited with and without selective saturation of the slice of interest. Methods Sat-UTE was compared with half-pulse and double-half pulse excited UTE within phantoms, as well as 3D-UTE within ex vivo femur and in vivo tibia. Numerical simulations were also used to quantify the effects of slice profile broadening and signal component amplitudes for quantitative UTE. Results Sat-UTE is robust to suppress out-of-slice signal, and produces short T2 signal decay curves comparable to 3D-UTE, but has a lower signal to noise ratio efficiency compared with other slice-selective methods. Conclusion The proposed method is useful for fast, quantitative evaluation of short T2 signals, and is insensitive to gradient performance. Magn Reson Med 73:2204-2211, 2015. © 2014 Wiley Periodicals, Inc. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Magnetic Resonance in Medicine is the property of Wiley-Blackwell 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: 10.1002/mrm.25361 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 2204 Titles: – TitleFull: Simple and robust saturation-based slice selection for ultrashort echo time MRI. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Harkins, Kevin D. – PersonEntity: Name: NameFull: Horch, R. Adam – PersonEntity: Name: NameFull: Does, Mark D. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2015 Type: published Y: 2015 Identifiers: – Type: issn-print Value: 07403194 Numbering: – Type: volume Value: 73 – Type: issue Value: 6 Titles: – TitleFull: Magnetic Resonance in Medicine Type: main |
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