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Data acquisition and postprocessing strategies for fast quantitative sodium imaging
Author(s) -
Boada Fernando E.,
Gillen Joseph S.,
Noll Douglas C.,
Shen Gary X.,
Thulborn Keith R.
Publication year - 1997
Publication title -
international journal of imaging systems and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.359
H-Index - 47
eISSN - 1098-1098
pISSN - 0899-9457
DOI - 10.1002/(sici)1098-1098(1997)8:6<544::aid-ima6>3.0.co;2-a
Subject(s) - computer science , data acquisition , signal (programming language) , algorithm , k space , artificial intelligence , magnetic resonance imaging , computer vision , nuclear magnetic resonance , physics , medicine , radiology , programming language , operating system
Abstract An efficient scheme for quantitatively mapping the three‐dimensional distribution of the sodium ion in vivo using magnetic resonance imaging is described. To make the methodology totally quantitative, the data acquisition scheme is performed with very short echo times and negligible T 1 saturation. Removal of signal variation due to imperfect radiofrequency (RF) response is accomplished using RF inhomogeneity maps acquired during each study. The high efficiency of the k‐space trajectories allows the entire data collection process to be performed in under 10 min. The theory underlying the data collection and processing scheme is described along with representative examples acquired at 1.5 and 3.0 T. © 1997 John Wiley & Sons, Inc. Int J Imaging Syst Technol, 8, 544–550, 1997