Radial self-navigated native magnetic resonance angiography in comparison to navigator-gated contrast-enhanced MRA of the entire thoracic aorta in an aortic patient collective.

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License: CC BY 4.0
Serval ID
serval:BIB_CE01B5C0A475
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Radial self-navigated native magnetic resonance angiography in comparison to navigator-gated contrast-enhanced MRA of the entire thoracic aorta in an aortic patient collective.
Journal
Journal of cardiovascular magnetic resonance
Author(s)
Correa Londono M., Trussardi N., Obmann V.C., Piccini D., Ith M., von Tengg-Kobligk H., Jung B.
ISSN
1532-429X (Electronic)
ISSN-L
1097-6647
Publication state
Published
Issued date
12/07/2021
Peer-reviewed
Oui
Volume
23
Number
1
Pages
94
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
The native balanced steady state with free precession (bSSFP) magnetic resonance angiography (MRA) technique has been shown to provide high diagnostic image quality for thoracic aortic disease. This study compares a 3D radial respiratory self-navigated native MRA (native-SN-MRA) based on a bSSFP sequence with conventional Cartesian, 3D, contrast-enhanced MRA (CE-MRA) with navigator-gated respiration control for image quality of the entire thoracic aorta.
Thirty-one aortic native-SN-MRA were compared retrospectively (63.9 ± 10.3 years) to 61 CE-MRA (63.1 ± 11.7 years) serving as a reference standard. Image quality was evaluated at the aortic root/ascending aorta, aortic arch and descending aorta. Scan time was recorded. In 10 patients with both MRA sequences, aortic pathologies were evaluated and normal and pathologic aortic diameters were measured. The influence of artifacts on image quality was analyzed.
Compared to the overall image quality of CE-MRA, the overall image quality of native-SN-MRA was superior for all segments analyzed (aortic root/ascending, p < 0.001; arch, p < 0.001, and descending, p = 0.005). Regarding artifacts, the image quality of native-SN-MRA remained superior at the aortic root/ascending aorta and aortic arch before and after correction for confounders of surgical material (i.e., susceptibility-related artifacts) (p = 0.008 both) suggesting a benefit in terms of motion artifacts. Native-SN-MRA showed a trend towards superior intraindividual image quality, but without statistical significance. Intraindividually, the sensitivity and specificity for the detection of aortic disease were 100% for native-SN-MRA. Aortic diameters did not show a significant difference (p = 0.899). The scan time of the native-SN-MRA was significantly reduced, with a mean of 05:56 ± 01:32 min vs. 08:51 ± 02:57 min in the CE-MRA (p < 0.001).
Superior image quality of the entire thoracic aorta, also regarding artifacts, can be achieved with native-SN-MRA, especially in motion prone segments, in addition to a shorter acquisition time.
Keywords
Aorta, Thoracic/diagnostic imaging, Aortic Diseases/diagnostic imaging, Contrast Media, Humans, Imaging, Three-Dimensional, Magnetic Resonance Angiography, Predictive Value of Tests, Reproducibility of Results, Retrospective Studies, Aortic diseases, MRI angiography, Steady-state free precession MRA, Thoracic aorta
Pubmed
Web of science
Open Access
Yes
Create date
30/07/2021 16:59
Last modification date
08/08/2024 7:40
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