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The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
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Updated: May 14, 2026

Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography

Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography

Published on: October 28, 2020

Double outlet right ventricle versus aortic dextroposition: morphologically distinct defects.

Angelo Restivo¹, Marta Unolt, Carolina Putotto

¹Department of Pediatrics, Pediatric Cardiology, University of Rome La Sapienza, Rome, Italy.

Anatomical Record (Hoboken, N.J. : 2007)

|February 13, 2013

Summary

Double outlet right ventricle (DORV) and aortic dextroposition (AD) are distinct congenital heart defects. Morphological differences, including septal insertion and great artery arrangement, differentiate these conditions, aiding in accurate clinical diagnosis.

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Area of Science:

Cardiovascular Morphology
Congenital Heart Disease Research
Pediatric Cardiology

Background:

Double outlet right ventricle (DORV) and aortic dextroposition (AD) share similarities in ventriculo-arterial connections.
Accurate differentiation between DORV and AD is crucial for effective clinical diagnosis and management.

Purpose of the Study:

To delineate the distinct morphological features differentiating DORV from AD.
To identify key anatomical landmarks that distinguish these congenital heart defects.

Main Methods:

Comparative morphological analysis of DORV and AD cases.
Detailed examination of septal insertion patterns and great artery arrangements.

Main Results:

A specific infundibular septum insertion into the septomarginal trabeculation characterizes AD, absent in DORV.
Spiraliform versus straight parallel arrangement of great arteries serves as a distinguishing feature.
Association of straight parallel great arteries with DORV and transposition of the great arteries in asplenia heterotaxy defects was noted.

Conclusions:

DORV and AD represent distinct morphological entities, not to be collectively grouped in clinico-pathological diagnoses.
Morphological differentiation based on septal insertion and great artery arrangement is vital.
Findings support the exclusion of subaortic ventricular septal defects and spiraliform great arteries in the asplenia group of heterotaxy anomalies.