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Transthoracic Echocardiography in Mice
Published on: May 28, 2010
Echocardiographic examination of the posterior atrioventricular groove
1Icahn School of Medicine at Mount Sinai, New York, New York.
Insights
Echocardiography can miss posterior atrioventricular (AV) groove abnormalities. This review details vascular issues, calcification, fat, masses, and left ventricular abnormalities in the AV groove, aiding diagnosis.
Area of Science:
- Cardiology
- Medical Imaging
Background:
- The posterior atrioventricular (AV) groove is prone to various abnormalities.
- These conditions can be overlooked during routine echocardiography.
Purpose of the Study:
- To discuss echocardiographic features of posterior AV groove abnormalities.
- To provide differential diagnoses and highlight clinical significance.
Main Methods:
- Review of echocardiographic findings related to the posterior AV groove.
- Discussion of differential diagnoses for masses and vascular abnormalities in this region.
Main Results:
- Identified abnormalities include coronary sinus plethora, circumflex artery ectasia, mitral annular calcification, lipomatosis, masses (tumors, thrombus), hiatal hernias, lymph nodes, and left ventricular aneurysms/pseudoaneurysms.
- Echocardiography is crucial for characterizing these diverse findings.
Conclusions:
- Recognizing diverse posterior AV groove abnormalities on echocardiography is essential for accurate diagnosis and patient management.
- Understanding these features improves diagnostic accuracy and clinical decision-making.
Abstract:
Abnormalities of the posterior atrioventricular (AV) groove may be mischaracterized or overlooked in the course of routine echocardiographic imaging. Vascular abnormalities in this location include plethora of the coronary sinus and ectasia of the circumflex coronary artery. Excess accumulation of calcium (mitral annular calcification) and of fat (lipomatosis of the posterior AV groove) may also occur in this region. Masses (tumors or thrombus) arising from the floor of the left atrium or extrinsic to it (hiatal hernia, lymph nodes) may occupy the posterior AV groove. Abnormalities of the left ventricle, including aneurysms and pseudoaneurysms may present as masses in the posterior AV groove. This article discusses the echocardiographic features, differential diagnosis, and clinical significance of these abnormalities.
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