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The impact of navigator timing parameters and navigator spatial resolution on 3D coronary magnetic resonance angiography
Author(s) -
Spuentrup Elmar,
Stuber Matthias,
Botnar René M.,
Manning Warren J.
Publication year - 2001
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.1188
Subject(s) - image quality , magnetic resonance imaging , image resolution , imaging phantom , magnetic resonance angiography , computer science , medicine , nuclear medicine , radiology , computer vision , image (mathematics)
The impact of navigator spatial resolution and navigator evaluation time on image quality in free‐breathing navigator‐gated 3D coronary magnetic resonance angiography (MRA), including real‐time motion correction, was investigated in a moving phantom. Objective image quality parameters signal‐to‐noise ratio (SNR) and vessel sharpness were compared. It was found that for improved mage quality a short navigator evaluation time is of crucial importance. Navigator spatial resolution showed minimal influence on image quality. J. Magn. Reson. Imaging 2001;14:311–318. © 2001 Wiley‐Liss, Inc.