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Ultrasound‐guided MRI: Preliminary results using a motion phantom
Author(s) -
Günther Matthias,
Feinberg David A.
Publication year - 2004
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.20140
Subject(s) - imaging phantom , real time mri , orientation (vector space) , ultrasound , scanner , computer science , magnetic resonance imaging , interventional magnetic resonance imaging , motion compensation , position (finance) , computer vision , biomedical engineering , medicine , nuclear medicine , radiology , artificial intelligence , mathematics , geometry , finance , economics
In principal, both ultrasound (US) imaging and MRI can be performed simultaneously within the magnetic field of the scanner due to their different physical natures (i.e., sound waves vs. electromagnetic radiation). One potential application is to use US information for dynamic spatial organ localization to improve MR imaging, similar to MR navigator echoes. In this work, preliminary results are presented for US‐guided MRI using position and orientation information extracted from US data to update the image slice position of an SSFP sequence in real time. Effective prospective motion compensation is shown for a phantom whose sinusoidal displacement can be fully corrected. Possible applications of simultaneous US‐MRI acquisitions include real‐time US‐guided cardiac MRI or interventional procedures. Magn Reson Med 52:27–32, 2004. © 2004 Wiley‐Liss, Inc.