B0 insensitive multiple-quantum resolved sodium imaging using a phase-rotation scheme

Fiege, Daniel P., Romanzetti, Sandro, Tse, Desmond H. Y., Brenner, Daniel, Celik, Avdo, Felder, Joerg and Shah, N. Jon (2013) B0 insensitive multiple-quantum resolved sodium imaging using a phase-rotation scheme. Journal of Magnetic Resonance, 228 32-36. doi:10.1016/j.jmr.2012.12.001


Author Fiege, Daniel P.
Romanzetti, Sandro
Tse, Desmond H. Y.
Brenner, Daniel
Celik, Avdo
Felder, Joerg
Shah, N. Jon
Title B0 insensitive multiple-quantum resolved sodium imaging using a phase-rotation scheme
Journal name Journal of Magnetic Resonance   Check publisher's open access policy
ISSN 1090-7807
Publication date 2013-03-01
Sub-type Article (original research)
DOI 10.1016/j.jmr.2012.12.001
Open Access Status Not yet assessed
Volume 228
Start page 32
End page 36
Total pages 5
Place of publication Maryland Heights, MO, United States
Publisher Academic Press
Language eng
Formatted abstract
Triple-quantum filtering has been suggested as a mechanism to differentiate signals from different physiological compartments. However, the filtering method is sensitive to static field inhomogeneities because different coherence pathways may interfere destructively. Previously suggested methods employed additional phase-cycles to separately acquire pathways. Whilst this removes the signal dropouts, it reduces the signal-to-noise per unit time. In this work we suggest the use of a phase-rotation scheme to simultaneously acquire all coherence pathways and then separate them via Fourier transform. Hence the method yields single-, double- and triple-quantum filtered images. The phase-rotation requires a minimum of 36 instead of six cycling steps. However, destructive interference is circumvented whilst maintaining full signal-to-noise efficiency for all coherences.

Keyword B0 inhomogeneity
Multiple-quantum filter
Phase-rotation
Sodium MRI
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Advanced Imaging Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 6 times in Thomson Reuters Web of Science Article | Citations
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