Related Experiment Video

Updated: Jun 18, 2026

Echocardiographic Assessment of the Right Heart in Mice
09:29

Echocardiographic Assessment of the Right Heart in Mice

Published on: November 28, 2013

Variability of echocardiographic discontinuity in double outlet right ventricle and truncus arteriosus

J W French, R Popp

    Circulation
    |May 1, 1975
    PubMed

    Insights

    Echocardiography is key for diagnosing congenital heart disease, but "echocardiographic discontinuity" can be tricky due to technical factors. Careful diagnosis is needed to distinguish conditions like tetralogy of Fallot.

    Area of Science:

    • Cardiology
    • Medical Imaging
    • Pediatric Medicine

    Background:

    • Echocardiography is widely used for congenital heart disease (CHD).
    • The concept of "echocardiographic discontinuity" aids in diagnosing certain CHD conditions.
    • Technical factors can complicate the recognition of echocardiographic discontinuity.

    Purpose of the Study:

    • To explore the diagnostic utility of "echocardiographic discontinuity" in congenital heart disease.
    • To highlight challenges and differential diagnoses associated with echocardiographic discontinuity.
    • To emphasize the importance of technical considerations in echocardiographic interpretation for CHD.

    Main Methods:

    • Review of reported cases illustrating echocardiographic discontinuity in CHD.
    • Analysis of technical factors influencing echocardiographic recognition of discontinuity.
    • Comparison of echocardiographic findings with confirmed diagnoses of conditions like tetralogy of Fallot, truncus arteriosus, and double outlet right ventricle.

    Main Results:

    • Echocardiographic discontinuity is a valuable sign for differentiating specific CHD entities.
    • Technical limitations can impede accurate identification of echocardiographic discontinuity.
    • Truncus arteriosus with anterior and posterior discontinuity presents a diagnostic challenge.

    Conclusions:

    • While valuable, echocardiographic discontinuity requires careful interpretation due to potential technical complications.
    • Accurate diagnosis of CHD using echocardiography necessitates awareness of these technical factors.
    • Differential diagnosis should consider complex presentations such as truncus arteriosus with combined discontinuities.

    More Related Videos

    Echocardiographic Assessment of Cardiac Anatomy and Function in Adult Rats08:09

    Echocardiographic Assessment of Cardiac Anatomy and Function in Adult Rats

    Published on: December 13, 2019

    Image Acquisition Method for the Sonographic Assessment of the Inferior Vena Cava06:59

    Image Acquisition Method for the Sonographic Assessment of the Inferior Vena Cava

    Published on: January 13, 2023

    Related Concept Videos

    The Cardiac Cycle01:13

    The Cardiac Cycle

    The heart beats rhythmically in a sequence called the cardiac cycle—a rapid coordination of contraction (systole) and relaxation (diastole).
    The Process
    Electrical signals—sent from the sinoatrial (SA) node in the right atrial wall to the atrioventricular (AV) node between the right atrium and right ventricle—cause both atria to simultaneously contract. When the signal reaches the AV node, it pauses for approximately a tenth of a second, allowing the atria to contract and empty blood into the...
    Chambers of the Heart01:16

    Chambers of the Heart

    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.
    Deoxygenated blood from the body is received in the right...
    Heart Valves01:16

    Heart Valves

    The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
    The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
    Heart Sounds01:15

    Heart Sounds

    Heart sounds are generated by the turbulence in blood flow due to the closing of heart valves. These sounds are best perceived slightly away from the valves, where the blood flow disseminates the sound.
    Auscultation is the process of listening to these internal body sounds using a stethoscope. The heart produces four types of sounds, but only two—S1 and S2—can usually be heard with a stethoscope.
    S1, also known as the "lub" sound, is caused by the closure of atrioventricular (A-V) valves at the...
    Cardiovascular System Abnormal Findings II: Auscultation01:25

    Cardiovascular System Abnormal Findings II: Auscultation

    Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
    Abnormal Heart Sounds
    Gallops:
    Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

    Aortic Regurgitation II: Clinical Features and Diagnostic Tests

    Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...