Anatomical and echocardiographic correlations in the normal heart

Area of Science:

• Cardiology
• Medical Imaging
• Anatomy

Background:

• Accurate interpretation of two-dimensional echocardiography relies on a thorough understanding of normal intracardiac structures.
• Familiarity with anatomical variations is crucial for distinguishing normal findings from pathology.

Purpose of the Study:

• To demonstrate the anatomical features of normal heart specimens as seen in standard echocardiographic views.
• To provide guidance on identifying cardiac chambers, connections, and major vessels using echocardiography.
• To highlight common anatomical variants visualized in echocardiograms.

Main Methods:

• Correlation of anatomical features in normal heart specimens with standard two-dimensional echocardiographic views.
• Systematic identification of cardiac chambers (atria and ventricles) and their connections.
• Recognition of characteristic features for differentiating major vessels (pulmonary artery and aorta).

Main Results:

• Identification of cardiac chambers is facilitated by visualizing inferior vena cava drainage to the right atrium.
• The right ventricle is distinguished by the tricuspid valve's distal attachment and the moderator band.
• The pulmonary artery is recognized by its bifurcation; the aorta is identified by the origin of brachiocephalic or coronary arteries.

Conclusions:

• Standard echocardiographic views allow for the identification of normal intracardiac structures.
• Key anatomical landmarks aid in differentiating cardiac chambers and major vessels.
• Common anatomical variants, such as prominent Eustachian valves and fibromuscular strands, are frequently visualized.