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European Radiology
Published in: European Radiology 2/2017

01-02-2017 | Cardiac

The number of unrecognized myocardial infarction scars detected at DE-MRI increases during a 5-year follow-up

Authors: Raquel Themudo, Lars Johansson, Charlotte Ebeling-Barbier, Lars Lind, Håkan Ahlström, Tomas Bjerner

Published in: European Radiology | Issue 2/2017

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Abstract

Objectives

In an elderly population, the prevalence of unrecognized myocardial infarction (UMI) scars found via late gadolinium enhancement (LGE) cardiac magnetic resonance (CMR) imaging was more frequent than expected. This study investigated whether UMI scars detected with LGE-CMR at age 70 would be detectable at age 75 and whether the scar size changed over time.

Methods

From 248 participants that underwent LGE-CMR at age 70, 185 subjects underwent a follow-up scan at age 75. A myocardial infarction (MI) scar was defined as late enhancement involving the subendocardium.

Results

In the 185 subjects that underwent follow-up, 42 subjects had a UMI scar at age 70 and 61 subjects had a UMI scar at age 75. Thirty-seven (88 %) of the 42 UMI scars seen at age 70 were seen in the same myocardial segment at age 75. The size of UMI scars did not differ between age 70 and 75.

Conclusions

The prevalence of UMI scars detected at LGE-CMR increases with age. During a 5-year follow-up, 88 % (37/42) of the UMI scars were visible in the same myocardial segment, reassuring that UMI scars are a consistent finding. The size of UMI scars detected during LGE-CMR did not change over time.

Key Points

• UMI scars detected by LGE-CMR are frequent in elderly.
• The prevalence of UMI scars detected with LGE-CMR increases with age.
• UMI scar size does not change over time.
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Metadata
Title
The number of unrecognized myocardial infarction scars detected at DE-MRI increases during a 5-year follow-up
Authors
Raquel Themudo
Lars Johansson
Charlotte Ebeling-Barbier
Lars Lind
Håkan Ahlström
Tomas Bjerner
Publication date
01-02-2017
Publisher
Springer Berlin Heidelberg
Published in
European Radiology / Issue 2/2017
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-016-4439-7

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