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Continuously moving table SENSE imaging
Author(s) -
Keupp Jochen,
Aldefeld Bernd,
Börnert Peter
Publication year - 2005
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/mrm.20313
Subject(s) - sense (electronics) , computer science , sensitivity (control systems) , table (database) , range (aeronautics) , computer vision , encoding (memory) , field (mathematics) , head (geology) , artificial intelligence , reduction (mathematics) , algorithm , mathematics , geometry , data mining , materials science , geomorphology , electronic engineering , geology , pure mathematics , electrical engineering , composite material , engineering
A combination of continuously moving table imaging and parallel imaging based on sensitivity encoding (SENSE) is presented. One specific geometry is considered, where the receiver array is fixed to the MR magnet and does not move with the table, which allows for head‐to‐toe imaging with a small total number of coils. Sensitivity maps are defined for the enlarged virtual field of view and are composed according to the k ‐space sampling scheme such that established parallel reconstruction techniques are applicable to good approximation. In vivo experiments show the feasibility of this approach, and simulations determine the application range. Three‐dimensional head‐to‐toe imaging of volunteers is performed in 77 s with a SENSE reduction factor of 2 in a virtual field of view of 1800 × 460 × 100 mm 3 . Magn Reson Med 53:217–220, 2005. © 2004 Wiley‐Liss, Inc.