Abstract:
:A method is suggested whereby the shifted extracellular triple quantum filtered 23Na signal of an isolated organ is completely eliminated. The method is based on the long relaxation time of the triple quantum coherence and on its fast evolution rate. When the carrier frequency is set on top of the intracellular sodium signal and the time interval between the last two pulses to (12 delta nu)-1 (delta nu is the frequency difference between the intracellular and the extracellular signals), a complete elimination of the extracellular 23Na signal is achieved. The method is demonstrated for isolated rat hearts and the quantification of intracellular sodium using triple quantum filtered spectroscopy is discussed.
journal_name
Magn Reson Medjournal_title
Magnetic resonance in medicineauthors
Navon Gdoi
10.1002/mrm.1910300415subject
Has Abstractpub_date
1993-10-01 00:00:00pages
503-6issue
4eissn
0740-3194issn
1522-2594journal_volume
30pub_type
杂志文章abstract::It is demonstrated that a high-resolution (1)H NMR spectrum of excised rat liver can be obtained using the technique of magic angle turning (MAT) at a sample spinning rate of 1 Hz. A variant of the phase-corrected MAT (PHORMAT) pulse sequence that includes a water suppression segment was developed for the investigatio...
journal_title:Magnetic resonance in medicine
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journal_title:Magnetic resonance in medicine
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journal_title:Magnetic resonance in medicine
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journal_title:Magnetic resonance in medicine
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journal_title:Magnetic resonance in medicine
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journal_title:Magnetic resonance in medicine
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journal_title:Magnetic resonance in medicine
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journal_title:Magnetic resonance in medicine
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journal_title:Magnetic resonance in medicine
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journal_title:Magnetic resonance in medicine
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journal_title:Magnetic resonance in medicine
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更新日期:2021-04-01 00:00:00
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journal_title:Magnetic resonance in medicine
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更新日期:2009-10-01 00:00:00
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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:2009-09-01 00:00:00
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journal_title:Magnetic resonance in medicine
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更新日期:2003-05-01 00:00:00
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journal_title:Magnetic resonance in medicine
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journal_title:Magnetic resonance in medicine
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更新日期:2011-09-01 00:00:00
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journal_title:Magnetic resonance in medicine
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