Myocardial infarct: Depiction with contrast-enhanced MR imaging - Comparison of gadopentetate and gadobenate

Thomas Schlosser, Peter Hunold, Christoph U. Herborn, Heidrun Lehmkuhl, Alexander Lind, Sandra Massing, Jörg Barkhausen*

*Corresponding author for this work
39 Citations (Scopus)

Abstract

Institutional review board approval and patient written informed consent were obtained. On two separate occasions, 24 hours apart, contrast-enhanced cardiac magnetic resonance (MR) imaging was performed prospectively at 1, 3, 5, 10, and 20 minutes after injection of gadopentetate dimeglumine and gadobenate dimeglumine in 15 patients (11 men, four women) with history of myocardial infarction. Both agents allowed detection of infarcted myocardium. T1 values at all times were significantly (P < .05) lower for gadobenate, compared with values for gadopentetate, in both infarcted and noninfarcted myocardium. At 1 minute after administration of both agents, T1 values in left ventricular cavity (LVC) were not different; at 3-20 minutes after injection, values were significantly (P < .05) lower for gadobenate. Differences between contrast-to-noise ratio (CNR) values of infarcted and noninfarcted myocardium were significantly higher on gadobenate-enhanced images (P < .05). CNR values between infarcted myocardium and LVC were significantly higher on gadopentetate-enhanced images (P < .05). Gadopentetate might permit better delineation of infarcts, especially subendocardial infarcts.

Original languageEnglish
JournalRadiology
Volume236
Issue number3
Pages (from-to)1041-1046
Number of pages6
ISSN0033-8419
DOIs
Publication statusPublished - 01.09.2005

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