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Updated: Jul 10, 2025

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
Echo HALT: do we really need a cardiac CT?
Giulia Passaniti1,2, Francesca Romana Prandi1,3, Samin Sharma1
1Mount Sinai Fuster Heart Hospital, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
Insights
Transcatheter aortic valve thrombosis can be diagnosed using echocardiography, avoiding the need for cardiac CT. This case highlights successful diagnosis and treatment solely through echocardiographic evaluation.
Area of Science:
- Cardiology
- Medical Imaging
Background:
- Leaflet thrombosis is often an incidental finding during cardiac imaging.
- Cardiac CT is the gold standard for diagnosing leaflet thrombosis.
- Hypoattenuation leaflet thickening (HALT) and hypoattenuation affecting motion (HAM) are classic CT findings.
Observation:
- This case study focuses on transcatheter aortic valve thrombosis.
- Diagnosis and treatment were based exclusively on echocardiographic evaluation.
- Transesophageal echocardiography was specifically utilized.
Findings:
- Echocardiography successfully identified transcatheter aortic valve thrombosis.
- Cardiac CT was not required for diagnosis in this case.
- The patient experienced a good outcome following treatment.
Implications:
- Echocardiography can be a reliable tool for diagnosing leaflet thrombosis.
- This approach may reduce the need for cardiac CT in select cases.
- Further research into echocardiography's role in diagnosing valve thrombosis is warranted.
Abstract:
Leaflet thrombosis is usually an incidental finding and Cardiac CT is the gold standard for its diagnosis, but the classic features of hypoattenuation leaflet thickening (HALT) and hypoattenuation affecting motion (HAM) can also be seen on echocardiography and more specifically on trans-esophageal echocardiography. We describe a case of transcatheter aortic valve thrombosis where both the diagnosis and treatment were based exclusively on the echocardiographic evaluation, without the need of cardiac CT, with good outcome for the patient.
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