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Updated: Apr 29, 2026

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
Suspected coronary ostium calcification identified as a protruding stent by epiaortic echography
Jun Hyun Kim1, Kyung Woo Kim, Won Joo Choe
1Inje University Ilsan Paik Hospital, Anesthesiology and Pain Medicine, 2240 Daehwa-dong, IlsanSeo-gu, Goyang-si, Gyeonggi-do, Korea.
Insights
A protruding coronary stent was unexpectedly found during mitral valvuloplasty, mimicking a cardiac mass. Epiaortic ultrasonography clarified the diagnosis, avoiding unnecessary surgical intervention.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Diagnostic Imaging
Background:
- A 76-year-old male presented for mitral valvuloplasty with a history of myocardial infarction and coronary artery stenting.
- Intraoperative transesophageal echocardiography identified a suspicious echogenic mass at the left main coronary artery ostium.
Observation:
- The mass, measuring 10x8 mm, was initially suspected to be severe atheromatous calcification requiring aortotomy.
- An epiaortic ultrasonographic scan was performed for better imaging and reevaluation of the coronary ostium lesion.
Findings:
- Epiaortic scanning definitively identified the echogenic mass as a protruding coronary stent.
- This finding altered the initial diagnostic suspicion and planned surgical approach.
Implications:
- Highlights the importance of advanced imaging techniques like epiaortic ultrasonography in complex cardiac cases.
- Demonstrates the potential for implanted devices to present as unexpected findings during cardiac procedures.
- Emphasizes the need for accurate pre-procedural diagnosis to guide appropriate surgical or interventional strategies.
Abstract:
A 76-year-old male patient was admitted for mitral valvuloplasty. He had suffered a myocardial infarction 7 months earlier, and two stents had been inserted in the left main coronary artery and left circumflex artery. Intraoperative transesophageal echocardiography revealed a 10 × 8 mm echogenic mass at the ostium of the left main coronary artery. We initially suspected severe atheromatous calcification at the coronary ostium, which might require aortotomy and removal, but we decided to perform an epiaortic ultrasonographic scan first to obtain better images and reevaluate. Epiaortic scanning with a linear sonographic probe identified the mass as a protruding coronary stent.
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