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PRESTO‐SENSE: An ultrafast whole‐brain fMRI technique
Author(s) -
Golay Xavier,
Pruessmann Klaas P.,
Weiger Markus,
Crelier Gérard R.,
Folkers Paul J.M.,
Kollias Spyros S.,
Boesiger Peter
Publication year - 2000
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/1522-2594(200006)43:6<779::aid-mrm1>3.0.co;2-4
Subject(s) - ultrashort pulse , computer science , block (permutation group theory) , pulse (music) , functional magnetic resonance imaging , set (abstract data type) , sense (electronics) , pulse sequence , image quality , physics , artificial intelligence , nuclear magnetic resonance , optics , image (mathematics) , neuroscience , psychology , chemistry , mathematics , telecommunications , laser , geometry , detector , programming language
A new ultrafast MR imaging method is proposed and tested, which enables whole‐brain fMRI with a true temporal resolution of 1 sec. The method combines a 3D PRESTO pulse sequence with the concept of sensitivity‐encoding with multiple receiver coils (SENSE). The so‐called PRESTO‐SENSE technique is demonstrated on a set of functional block‐type motor and visual experiments and compared with conventional functional imaging techniques, such as PRESTO and EPI. Comparable image quality and activation areas are found with all sequences. The noise characteristics of the proposed method are analyzed in detail and their implications for ultrafast fMRI studies are discussed. Magn Reson Med 43:779–786, 2000. © 2000 Wiley‐Liss, Inc.