title: Wavelet-encoding gradient-echo imaging sequence using real-time de-noising method for acquisition time reduction.
abstract: OBJECTIVE
  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 dynamic magnetic resonance imaging.
  
  
  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.
  
  
  RESULTS
  The SNR of GE-WE images increases by approximately three times in simulation, while the acquisition time reduction ranges from 5 to 10% on phantom tests.
  
  
  CONCLUSIONS
  This technique improves the SNR of GE-WE images, while reducing acquisition time.
authors.affiliation: National Research Council of Canada, Institute for Biodiagnostics, Winnipeg, Canada. Hacene.Serrai@cnrc-nrc.gc.ca
authors.forename: Hacene
authors.initials: H
authors.lastname: Serrai
authors.forename: Richard
authors.initials: R
authors.lastname: Young
mesh_terms: D016477:Artifacts; D017352:Echo-Planar Imaging / Q000295:instrumentation / Q000379:methods*; D009716:Numerical Analysis, Computer-Assisted; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013997:Time Factors