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Improved 3D spiral imaging for coronary MR angiography
Author(s) -
Börnert Peter,
Aldefeld Bernd,
Nehrke Kay
Publication year - 2001
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 - 10.1002/1522-2594(200101)45:1<172::aid-mrm1024>3.0.co;2-l
Subject(s) - spiral (railway) , medicine , angiography , coronary angiography , conventional angiography , steady state free precession imaging , coronary arteries , nuclear medicine , artery , radiology , magnetic resonance imaging , cardiology , mathematics , mathematical analysis , myocardial infarction
Thin‐slab 3D spiral imaging has been used for MR angiography to image selected coronary arteries. Improved scan efficiency was achieved using a train of multiple spiral interleaves within each single R‐R interval acquired in the late diastole. Data acquisition was performed during free breathing, using navigator gating. Additionally, prospective slice tracking was applied to further reduce the sensitivity to motion. The application of a T 2 ‐preparation pulse and fat suppression increased the contrast between blood and myocardium. Experiments performed on healthy volunteers are presented to show the feasibility of this approach, which allows coronary artery imaging of selected vessels within a few minutes. Magn Reson Med 45:172–175, 2001. © 2001 Wiley‐Liss, Inc.