Normal Cardiac Anatomy
These findings indicate a completely normal cardiac anatomy with no structural heart defects. The report describes the standard anatomical arrangement that is present in the vast majority of healthy individuals.
What These Terms Mean
The imaging findings describe three fundamental aspects of cardiac anatomy using the segmental approach 1, 2:
Situs Solitus
- Normal positioning of thoracic and abdominal organs on their expected sides
- Stomach and spleen on the left, liver on the right
- This is the normal arrangement seen in approximately 95% of the population 1
- The opposite would be situs inversus (mirror-image reversal) or situs ambiguus (abnormal lateralization)
Levocardia
- The heart apex points to the left side of the chest, which is the normal position
- The heart is located in the left hemithorax as expected
- This contrasts with dextrocardia (apex pointing right) or mesocardia (midline position) 1
Atrioventricular and Ventriculoarterial Concordance
- Normal connections between cardiac chambers and vessels 2, 3
- Atrioventricular concordance: The right atrium connects to the right ventricle, and the left atrium connects to the left ventricle (as it should)
- Ventriculoarterial concordance: The right ventricle gives rise to the pulmonary artery, and the left ventricle gives rise to the aorta (as it should)
Clinical Significance
This combination of findings essentially rules out major congenital heart defects involving abnormal cardiac positioning or connections 1, 2. The segmental approach described here is the first critical step in evaluating for complex congenital heart disease, and when all three components are normal (as in this case), it indicates proper cardiac development.
What This Does NOT Rule Out
While the basic cardiac organization is normal, this description alone does not exclude:
- Septal defects (ASD, VSD)
- Valve abnormalities (stenosis or regurgitation)
- Coronary artery anomalies
- Cardiomyopathies
- Acquired heart disease
These would require additional detailed evaluation of individual cardiac structures, which would typically be included in other sections of the imaging report 1.
Context for Complex Cases
The terminology used here becomes particularly important when evaluating complex congenital heart disease. For example, in congenitally corrected transposition of the great arteries (CCTGA), you would see atrioventricular and ventriculoarterial discordance rather than concordance 1. In heterotaxy syndromes, you might see situs ambiguus rather than situs solitus 4, 2.
The fact that this report explicitly states these findings as normal suggests the imaging was performed to evaluate for congenital heart disease, and the radiologist is confirming the absence of these fundamental structural abnormalities.