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Reduction of blurring in view angle tilting MRI
Author(s) -
Butts Kim,
Pauly John M.,
Gold Garry E.
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.20375
Subject(s) - computer science , bandwidth (computing) , magnetic resonance imaging , computer vision , physics , signal to noise ratio (imaging) , image quality , plane (geometry) , artificial intelligence , signal (programming language) , optics , reduction (mathematics) , image (mathematics) , mathematics , telecommunications , medicine , radiology , geometry , programming language
Magnetic resonance imaging (MRI) in the presence of metallic objects suffers from slice‐selection errors and in‐plane distortions. View angle tilting (VAT) corrects for in‐plane distortions by adding a gradient on the slice‐select axis during readout, but can suffer from image blurring. This work demonstrates that the major source of blurring is a slice profile modulation of the data, and proposes several solutions to prevent such blurring. Multiple high‐bandwidth readouts are demonstrated to reduce the blurring while improving the signal‐to‐noise ratio (SNR) over a single high‐bandwidth readout. Magn Reson Med 53:418–424, 2005. © 2005 Wiley‐Liss, Inc.