Abstract:
:Magnetic resonance elastography (MRE) uses a phase-contrast MRI technique to image shear wave propagation in tissue followed by the mathematical inversion of the equations of motion governing tissue mechanics to noninvasively image tissue stiffness. This work investigates the impact of various MR sampling strategies designed to reduce acquisition times on the accuracy of MRE inversions. The results indicate that brain MRE data can be significantly truncated while maintaining a mean global stiffness error less than 10%. The results also indicate that brain MRE data can be collected in as few as eight lines of k-space. This degree of data truncation is possible due to the relatively low spatial frequency content and low amplitude of the shear waves observed during brain MRE exams and will facilitate the design of rapid brain MRE protocols for future clinical investigations.
journal_name
Magn Reson Imagingjournal_title
Magnetic resonance imagingauthors
Murphy MC,Glaser KJ,Manduca A,Felmlee JP,Huston J 3rd,Ehman RLdoi
10.1016/j.mri.2010.06.016subject
Has Abstractpub_date
2010-12-01 00:00:00pages
1514-24issue
10eissn
0730-725Xissn
1873-5894pii
S0730-725X(10)00173-6journal_volume
28pub_type
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journal_title:Magnetic resonance imaging
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doi:10.1016/0730-725x(94)91238-r
更新日期:1994-01-01 00:00:00
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journal_title:Magnetic resonance imaging
pub_type: 杂志文章,评审
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journal_title:Magnetic resonance imaging
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doi:10.1016/j.mri.2014.08.041
更新日期:2015-02-01 00:00:00
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journal_title:Magnetic resonance imaging
pub_type: 杂志文章
doi:10.1016/j.mri.2007.06.008
更新日期:2008-02-01 00:00:00
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doi:10.1016/j.mri.2019.03.004
更新日期:2019-06-01 00:00:00
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pub_type: 杂志文章
doi:10.1016/j.mri.2013.03.024
更新日期:2013-09-01 00:00:00
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pub_type: 杂志文章
doi:10.1016/j.mri.2006.07.005
更新日期:2006-11-01 00:00:00
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pub_type: 杂志文章
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