Abstract:
:Due to a delayed echo-formation, echo-shifted gradient echo sequences (ES-GRE) allow for an enhanced T(2)*-weighting at short repetition times. While they are in use with and without RF spoiling, analytical solutions are only known for the latter. The signal formation in the former could only be assessed in approximative form, so far. In this article an exact analytical solution is presented for TR-periodic ES-GRE sequences with RF phase cycling. Besides providing a better numerical performance, it should be useful for systematic sequence development. The relation to recent approximative solutions is discussed.
journal_name
Magn Reson Medjournal_title
Magnetic resonance in medicineauthors
Ganter Cdoi
10.1002/mrm.21010subject
Has Abstractpub_date
2006-10-01 00:00:00pages
923-6issue
4eissn
0740-3194issn
1522-2594journal_volume
56pub_type
杂志文章abstract::Head motion is a fundamental problem in functional magnetic resonance imaging and is often a limiting factor in its clinical implementation. This work presents a rigid-body motion correction strategy for echo-planar imaging sequences that uses micro radiofrequency coil "active markers" for real-time, slice-by-slice pr...
journal_title:Magnetic resonance in medicine
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更新日期:2020-03-01 00:00:00
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journal_title:Magnetic resonance in medicine
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更新日期:2004-09-01 00:00:00
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abstract::Ferumoxytol is an ultrasmall superparamagnetic iron oxide agent marketed for the treatment of anemia. There has been increasing interest in its properties as an MRI contrast agent as well as greater awareness of its adverse event profile. This mini-review summarizes the current state of knowledge of the risks of ferum...
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更新日期:2016-05-01 00:00:00
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journal_title:Magnetic resonance in medicine
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更新日期:2015-06-01 00:00:00
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更新日期:2011-09-01 00:00:00
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更新日期:1988-12-01 00:00:00
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更新日期:2015-02-01 00:00:00
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更新日期:2014-01-01 00:00:00
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更新日期:2014-02-01 00:00:00
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更新日期:1986-06-01 00:00:00
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