Elliptical subject-specific model of respiratory motion for cardiac MRI.
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| Title: | Elliptical subject-specific model of respiratory motion for cardiac MRI. |
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| Authors: | Burger, Ian1, Meintjes, Ernesta M.1 |
| Source: | Magnetic Resonance in Medicine. Sep2013, Vol. 70 Issue 3, p722-731. 10p. |
| Abstract: | Respiratory motion is a major problem in cardiac MRI. In this work, the displacement of the heart relative to the diaphragm was investigated. A subject-specific nonlinear elliptical affine model has been developed to incorporate the effect of hysteresis in motion correction. Nine healthy volunteers participated in a study in which the diaphragm position and an image of the heart were acquired during each cardiac cycle, while breathing freely. The elliptical model was compared to a linear affine model, and the results show that the elliptical model performed significantly ( P < 0.05) better than the linear model. Further, it has been established that the model can be constructed from 25 s of prescan data, which makes it feasible to perform a short prescan to construct the model, so that subject-specific prospective motion correction of the heart can be integrated into structural cardiac MRI sequences. Magn Reson Med 70:722-731, 2013. © 2012 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: 89944565 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Elliptical subject-specific model of respiratory motion for cardiac MRI. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Burger%2C+Ian%22">Burger, Ian</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Meintjes%2C+Ernesta+M%2E%22">Meintjes, Ernesta M.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Magnetic+Resonance+in+Medicine%22">Magnetic Resonance in Medicine</searchLink>. Sep2013, Vol. 70 Issue 3, p722-731. 10p. – Name: Abstract Label: Abstract Group: Ab Data: Respiratory motion is a major problem in cardiac MRI. In this work, the displacement of the heart relative to the diaphragm was investigated. A subject-specific nonlinear elliptical affine model has been developed to incorporate the effect of hysteresis in motion correction. Nine healthy volunteers participated in a study in which the diaphragm position and an image of the heart were acquired during each cardiac cycle, while breathing freely. The elliptical model was compared to a linear affine model, and the results show that the elliptical model performed significantly ( P < 0.05) better than the linear model. Further, it has been established that the model can be constructed from 25 s of prescan data, which makes it feasible to perform a short prescan to construct the model, so that subject-specific prospective motion correction of the heart can be integrated into structural cardiac MRI sequences. Magn Reson Med 70:722-731, 2013. © 2012 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.24502 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 722 Titles: – TitleFull: Elliptical subject-specific model of respiratory motion for cardiac MRI. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Burger, Ian – PersonEntity: Name: NameFull: Meintjes, Ernesta M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2013 Type: published Y: 2013 Identifiers: – Type: issn-print Value: 07403194 Numbering: – Type: volume Value: 70 – Type: issue Value: 3 Titles: – TitleFull: Magnetic Resonance in Medicine Type: main |
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