CTICasesType 2 Non-ST Elevation Myocardial Infarction
Imaging findings
CT scan of the abdomen and pelvis in one patient and chest CT in another demonstrate localized, decreased subendocardial enhancement in the left ventricular myocardium, specifically in the distribution of the left anterior descending coronary artery. There is apical ballooning of the left ventricle.
Key takeaways
Myocardial infarction can be incidentally identified on chest or abdominal CT scans as areas of hypoenhancing myocardium, especially when scans are acquired with a slight delay. A type 2 myocardial infarction results from a mismatch between oxygen supply and demand, often precipitated by systemic stressors like severe sepsis or acute anemia rather than acute plaque rupture.
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