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Updated: Aug 24, 2026

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
Published on: February 8, 2022
Coronary collaterals by transthoracic echocardiography in coronary artery disease
Anne Anjaneyulu1, Christopher Johann, Raju P Raghava
1Division of Cardiology, CARE Hospital, Banjara Hills, Hyderabad, India. anjan_anne@yahoo.com
Insights
Transthoracic echocardiography successfully demonstrated coronary collaterals in three patients with coronary artery disease before conventional angiography. This novel approach offers a potential non-invasive method for visualizing coronary collateral circulation.
Area of Science:
- Cardiology
- Medical Imaging
- Vascular Biology
Background:
- Coronary collaterals are typically visualized using coronary angiography.
- Transthoracic echocardiography has shown utility in demonstrating collaterals in specific congenital anomalies.
- Myocardial contrast echocardiography provides indirect assessment of collateral flow to infarct-related arteries.
Observation:
- This study reports on three patients with coronary artery disease (CAD).
- Coronary collaterals were visualized using transthoracic echocardiography prior to coronary angiography.
- This represents a novel application of TTE for collateral demonstration in general CAD.
Findings:
- Transthoracic echocardiography effectively demonstrated coronary collaterals in all three patients.
- The echocardiographic findings correlated with the subsequent angiographic results.
- This non-invasive method provides valuable anatomical and functional information about collateral pathways.
Implications:
- Transthoracic echocardiography may offer a non-invasive alternative or adjunct for assessing coronary collaterals in CAD patients.
- This technique could improve pre-angiography risk stratification and treatment planning.
- Further research is warranted to validate TTE's role in routine clinical practice for CAD.
Abstract:
Demonstration of coronary collaterals has been mostly done by coronary angiographic techniques. Coronary collaterals have been demonstrated by transthoracic echocardiography for patients with anomalous origin of coronary arteries from pulmonary artery. Indirect assessment of collaterals to an infarct-related artery has been done using myocardial contrast echocardiography. We describe in this article 3 patients with coronary artery disease in whom coronary collaterals were demonstrated by transthoracic echocardiography before angiography. To our knowledge, coronary collateral demonstration by transthoracic echocardiography before angiography in patients with coronary artery disease has not been previously reported.
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