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Related Concept Videos

Imaging Studies for Cardiovascular System I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

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Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
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Heart Failure II: Pathophysiology01:29

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Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
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Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies01:22

Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies

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The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...
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Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

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Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for...
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

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Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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Related Experiment Video

Updated: Apr 15, 2026

Echocardiographic Assessment of Cardiac Anatomy and Function in Adult Rats
08:09

Echocardiographic Assessment of Cardiac Anatomy and Function in Adult Rats

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Left ventricular diastolic function and dysfunction: Central role of echocardiography.

Hisham Dokainish

    Global Cardiology Science & Practice
    |April 2, 2015
    PubMed
    Summary

    Echocardiography precisely assesses left ventricular diastolic function for diagnosing heart failure, utilizing Doppler and Tissue Doppler imaging. A comprehensive approach combining multiple parameters ensures accurate evaluation in patients with preserved or depressed ejection fraction.

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    Last Updated: Apr 15, 2026

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    Echocardiographic Approaches and Protocols for Comprehensive Phenotypic Characterization of Valvular Heart Disease in Mice
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    Evaluation of Left Ventricular Structure and Function using 3D Echocardiography
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    Evaluation of Left Ventricular Structure and Function using 3D Echocardiography

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    Area of Science:

    • Cardiology
    • Medical Imaging
    • Physiology

    Background:

    • Accurate assessment of left ventricular (LV) function is crucial for diagnosing heart failure, a common cause of dyspnea.
    • Echocardiography with Doppler offers a non-invasive, rapid, and accessible method for evaluating LV systolic and diastolic function.

    Purpose of the Study:

    • To highlight the importance of precise LV diastolic function assessment in patients presenting with dyspnea.
    • To delineate the utility of echocardiography, including Tissue Doppler imaging, in evaluating diastolic function across different LV ejection fraction (EF) statuses.

    Main Methods:

    • Utilizing echocardiography with conventional and Tissue Doppler (TD) imaging to assess LV diastolic function.
    • Analyzing transmitral flow velocities, deceleration time, pulmonary venous Doppler, left atrial volume, and pulmonary artery pressures.

    Main Results:

    • Tissue Doppler imaging is particularly useful for detecting impaired LV relaxation in preserved LVEF, indicating diastolic heart failure.
    • In depressed LVEF, standard Doppler parameters and other variables are sufficient for assessing LV filling pressures, as impaired relaxation is inherent.

    Conclusions:

    • A comprehensive diastolic assessment integrating multiple echocardiographic parameters is superior to relying on single variables for accurate diagnosis.
    • Echocardiography provides a robust, non-invasive tool for evaluating diastolic heart failure in both preserved and depressed LV ejection fraction patients.