How are complications of myocardial infarction (MI, heart attack) diagnosed, and how is pseudoaneurysm differentiated from a true aneurysm on imaging?

Updated: May 07, 2019
  • Author: A Maziar Zafari, MD, PhD, FACC, FAHA; Chief Editor: Eric H Yang, MD  more...
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Answer

Complications of MI, such as ventricular pseudoaneurysms, are confirmed by means of echocardiography,magnetic resonance imaging (MRI), or contrast-enhanced computed tomography (CT) scanning. Imaging of a pseudoaneurysm typically shows a relatively narrow neck and a complete absence of muscle in the wall of the pseudoaneurysm—unlike a true aneurysm, which has a rim of myocardial wall that may be identified on angiography by the presence of mural vessels.


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