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Magnetic resonance imaging near metal implants
Author(s) -
Koch K.M.,
Hargreaves B.A.,
Pauly K. Butts,
Chen W.,
Gold G.E.,
King K.F.
Publication year - 2010
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.22313
Subject(s) - magnetic resonance imaging , computer science , encoding (memory) , focus (optics) , fast spin echo , real time mri , clinical imaging , biomedical engineering , medical physics , artificial intelligence , radiology , medicine , physics , optics
The desire to apply magnetic resonance imaging (MRI) techniques in the vicinity of embedded metallic hardware is increasing. The soft‐tissue contrast available with MR techniques is advantageous in diagnosing complications near an increasing variety of MR‐safe metallic hardware. Near such hardware, the spatial encoding mechanisms utilized in conventional MRI methods are often severely compromised. Mitigating these encoding difficulties has been the focus of numerous research investigations over the past two decades. Such approaches include view‐angle tilting, short echo‐time projection reconstruction acquisitions, single‐point imaging, prepolarized MRI, and postprocessing image correction. Various technical advances have also enabled the recent development of two alternative approaches that have shown promising clinical potential. Here, the physical principals and proposed solutions to the problem of MRI near embedded metal are discussed. J. Magn. Reson. Imaging 2010;32:773–787. © 2010 Wiley‐Liss, Inc.