Modified wideband three-dimensional late gadolinium enhancement MRI for patients with implantable cardiac devices.
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| Title: | Modified wideband three-dimensional late gadolinium enhancement MRI for patients with implantable cardiac devices. |
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| Authors: | Rashid, Shams1, Rapacchi, Stanislas1, Shivkumar, Kalyanam1,2, Plotnik, Adam1, Finn, J. Paul1,3, Hu, Peng1,3 |
| Source: | Magnetic Resonance in Medicine. Feb2016, Vol. 75 Issue 2, p572-584. 13p. |
| Abstract: | Purpose To study the effects of cardiac devices on three-dimensional (3D) late gadolinium enhancement (LGE) MRI and to develop a 3D LGE protocol for implantable cardioverter defibrillator (ICD) patients with reduced image artifacts. Theory and Methods The 3D LGE sequence was modified by implementing a wideband inversion pulse, which reduces hyperintensity artifacts, and by increasing bandwidth of the excitation pulse. The modified wideband 3D LGE sequence was tested in phantoms and evaluated in six volunteers and five patients with ICDs. Results Phantom and in vivo studies results demonstrated extended signal void and ripple artifacts in 3D LGE that were associated with ICDs. The reason for these artifacts was slab profile distortion and the subsequent aliasing in the slice-encoding direction. The modified wideband 3D LGE provided significantly reduced ripple artifacts than 3D LGE with wideband inversion only. Comparison of 3D and 2D LGE images demonstrated improved spatial resolution of the heart using 3D LGE. Conclusion Increased bandwidth of the inversion and excitation pulses can significantly reduce image artifacts associated with ICDs. Our modified wideband 3D LGE protocol can be readily used for imaging patients with ICDs given appropriate safety guidelines are followed. Magn Reson Med 75:572-584, 2016. © 2015 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 |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 112338207 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Modified wideband three-dimensional late gadolinium enhancement MRI for patients with implantable cardiac devices. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Rashid%2C+Shams%22">Rashid, Shams</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rapacchi%2C+Stanislas%22">Rapacchi, Stanislas</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Shivkumar%2C+Kalyanam%22">Shivkumar, Kalyanam</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Plotnik%2C+Adam%22">Plotnik, Adam</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Finn%2C+J%2E+Paul%22">Finn, J. Paul</searchLink><relatesTo>1,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Hu%2C+Peng%22">Hu, Peng</searchLink><relatesTo>1,3</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Magnetic+Resonance+in+Medicine%22">Magnetic Resonance in Medicine</searchLink>. Feb2016, Vol. 75 Issue 2, p572-584. 13p. – Name: Abstract Label: Abstract Group: Ab Data: Purpose To study the effects of cardiac devices on three-dimensional (3D) late gadolinium enhancement (LGE) MRI and to develop a 3D LGE protocol for implantable cardioverter defibrillator (ICD) patients with reduced image artifacts. Theory and Methods The 3D LGE sequence was modified by implementing a wideband inversion pulse, which reduces hyperintensity artifacts, and by increasing bandwidth of the excitation pulse. The modified wideband 3D LGE sequence was tested in phantoms and evaluated in six volunteers and five patients with ICDs. Results Phantom and in vivo studies results demonstrated extended signal void and ripple artifacts in 3D LGE that were associated with ICDs. The reason for these artifacts was slab profile distortion and the subsequent aliasing in the slice-encoding direction. The modified wideband 3D LGE provided significantly reduced ripple artifacts than 3D LGE with wideband inversion only. Comparison of 3D and 2D LGE images demonstrated improved spatial resolution of the heart using 3D LGE. Conclusion Increased bandwidth of the inversion and excitation pulses can significantly reduce image artifacts associated with ICDs. Our modified wideband 3D LGE protocol can be readily used for imaging patients with ICDs given appropriate safety guidelines are followed. Magn Reson Med 75:572-584, 2016. © 2015 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.25601 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 572 Titles: – TitleFull: Modified wideband three-dimensional late gadolinium enhancement MRI for patients with implantable cardiac devices. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Rashid, Shams – PersonEntity: Name: NameFull: Rapacchi, Stanislas – PersonEntity: Name: NameFull: Shivkumar, Kalyanam – PersonEntity: Name: NameFull: Plotnik, Adam – PersonEntity: Name: NameFull: Finn, J. Paul – PersonEntity: Name: NameFull: Hu, Peng IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 07403194 Numbering: – Type: volume Value: 75 – Type: issue Value: 2 Titles: – TitleFull: Magnetic Resonance in Medicine Type: main |
| ResultId | 1 |
