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Accelerated coronary MRA by simultaneous acquisition of multiple 3D stacks
Author(s) -
Manke Dirk,
Böornert Peter,
Nehrke Kay,
Nagel Eike,
Döossel Olaf
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.1210
Subject(s) - stack (abstract data type) , image quality , magnetic resonance imaging , coronary angiography , magnetic resonance angiography , computer science , medicine , radiology , biomedical engineering , nuclear medicine , computer vision , image (mathematics) , cardiology , myocardial infarction , programming language
The implementation and first in vivo results of a novel coronary magnetic resonance angiography (MRA) protocol allowing simultaneous acquisition of multiple geometrically independent 3D imaging stacks are presented. Each imaging stack is acquired in a separate cardiac phase using an individual magnetization preparation and navigator‐based gating and prospective motion correction. Each stack covers one of the main coronary vessels. Thus, an improvement of scan efficiency was achieved, which was used in this study to reduce total scan time at standard image quality. Experiments performed in healthy volunteers and in patients using a two‐stack approach yielded a total scan time reduction of 50% with an image quality equivalent to standard single‐stack coronary MRA. J. Magn. Reson. Imaging 2001;14:478–483. © 2001 Wiley‐Liss, Inc.