ArticleJACC. Case reports2026
Characterizing a Left Ventricular Pseudoaneurysm With Photon-Counting Detector CT.
Article in JACC. Case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
backgroundVentricular pseudoaneurysms are a rare but potentially fatal complication of myocardial infarction. Accurate differentiation from true aneurysms is crucial given the risk of rupture. CASE SUMMARY: A 57-year-old woman presented with acute chest pain and progressive dyspnea. Electrocardiography showed signs of chronic infarction, while echocardiography revealed an aneurysmal structure and pericardial effusion. Photon-counting detector computed tomography (PCD-CT) was able to identify a large inferoseptal pseudoaneurysm with mural thrombus, occlusion of the right coronary artery, myocardial fibrosis consistent with infarction, and pericardial thickening suggesting concomitant pericarditis. Cardiac magnetic resonance imaging confirmed the PCD-CT findings and showed no signs of edema, indicating that the infarction was chronic. The patient subsequently underwent successful surgical aneurysmectomy. DISCUSSION: This case highlights the diagnostic capabilities of PCD-CT in cardiac imaging, including late iodine enhancement and extracellular volume measurements to detect myocardial fibrosis. TAKE-HOME MESSAGE: PCD-CT allows evaluation of cardiac anatomy, coronary arteries, cardiac function, and myocardial tissue as a one-stop shop, even in a complex surgical case.
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