Wavelet-encoding gradient-echo imaging sequence using real-time de-noising method for acquisition time reduction

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DOIResolve DOI: http://doi.org/10.1007/s10334-010-0223-x
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TypeArticle
Journal titleMagnetic Resonace Materials in Physics, Biology and Medicine
Volume23
Issue4
Pages197201; # of pages: 5
SubjectWavelet encoding; Dynamic MRI; De-noising; Small FOV imaging
AbstractObject: To reduce acquisition time and increase signal-to-noise ratio (SNR) of the wavelet encoding gradient echo (GE-WE) sequence used in small Field Of View (FOV) dynamic magnetic resonance imaging (MRI). Materials and Methods: A GE-WE imaging sequence acquires wavelet lines from a 3 Tesla scanner. Those with intensity below a given threshold are skipped in real-time, improving SNR and reducing acquisition time. esults: The SNR of GE-WE images increases by approximately three times in simulation, while the acquisition time reduction ranges from 5-10% on phantom tests. Conclusion: This technique improves the SNR of GE-WE images, while reducing acquisition time.
Publication date
LanguageEnglish
AffiliationNRC Institute for Biodiagnostics; National Research Council Canada
Peer reviewedYes
NPARC number17652974
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Record identifier7eedb630-5dcd-44bd-9580-c0dbf620f9f2
Record created2011-04-03
Record modified2016-05-09
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