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Whole-heart 4D flow can be acquired with preserved quality without respiratory gating facilitating clinical use
© Kanski et al; licensee BioMed Central Ltd. 2015
- Published: 3 February 2015
- Kinetic Energy
- Research Council
- Stroke Volume
- Motion Artifact
- Respiratory Gating
Respiratory gating is often used in 4D-flow acquisition to reduce motion artifacts. However, gating increases scan time. The aim of this study was to investigate if respiratory gating can be excluded from 4D flow acquisitions without affecting quantitative intracardiac parameters.
Eight volunteers underwent CMR at 1.5T with a 5-channel coil (5ch). Imaging included 2D flows, and whole-heart 4D flow with and without respiratory gating (Resp(+), Resp(-)). Stroke volume (SV), particle-trace volumes, kinetic energy, and vortex-ring volume were obtained from 4D flow-data. These parameters were compared between 5ch Resp(+) and 5ch Resp(-).
Whole-heart 4D flow can be acquired with preserved quality without respiratory gating, facilitating clinical use.
This study was supported by the Swedish Research Council (2011-3916, 2012-4944); the Swedish Heart-Lung Foundation; Lund University Faculty of Medicine; Lund University Hospital, Lund, Sweden; and Region Skåne.
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.