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European Radiology
Published in: European Radiology 10/2003

01-10-2003 | Experimental

Toward comparability of coronary magnetic resonance angiography: proposal for a standardized quantitative assessment

Authors: Martijn S. Dirksen, Hildo J. Lamb, Rob van der Geest, Albert de Roos

Published in: European Radiology | Issue 10/2003

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Abstract

A method is proposed for the quantitative assessment of coronary magnetic resonance angiography (MRA) acquisitions. The method is based on four parameters: signal-to-noise ratio (SNR); contrast-to-noise ratio (CNR); vessel length; and vessel-edge definition. A pig model (n=7) was used to illustrate the proposed quantitative analysis method. Three-dimensional gradient-echo coronary MRA was performed with and without exogenous contrast enhancement using a gadolinium-based blood-pool contrast agent (Vistarem, Guerbet, Aulnay-Sous-Bois, France). The acquired images could be well differentiated based on the four parameters. The SNR was calculated as 9.0±1.4 vs 10.4±2.1, the CNR as 6.2±0.8 vs 8.2±0.9, the vessel length as 48.2±11.6 vs 86.5±13.8 mm, and the vessel-edge definition as 4.9±1.5 vs 7.7±3.4. Different coronary MRA techniques can be evaluated objectively with the combined use of SNR, CNR, vessel length, and vessel-edge parameters.
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Metadata
Title
Toward comparability of coronary magnetic resonance angiography: proposal for a standardized quantitative assessment
Authors
Martijn S. Dirksen
Hildo J. Lamb
Rob van der Geest
Albert de Roos
Publication date
01-10-2003
Publisher
Springer-Verlag
Published in
European Radiology / Issue 10/2003
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-003-2007-4

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