Related Experiment Video
Updated: May 26, 2026
08:09
Echocardiographic Assessment of Cardiac Anatomy and Function in Adult Rats
Published on: December 13, 2019
Aortic root motion: a marker of left ventricular diastolic dysfunction using M-mode echocardiography? An
Himanshu Tandon1, Matthew Nwosu, Anthony F LaSala
1University of Connecticut Internal Medicine Residency, Farmington, USA.
Connecticut Medicine
|January 6, 2012
Summary
M-mode aortic root motion (M-MARM) effectively assesses left ventricular diastolic dysfunction (LVDD), offering an accurate and simpler alternative to Doppler tissue imaging (DTI). This method aids in identifying diastolic impairment in hypertensive and normal subjects.
Area of Science:
- Cardiology
- Medical Imaging
- Diagnostic Tools
Background:
- Echocardiography is crucial for non-invasive assessment of left ventricular diastolic dysfunction (LVDD).
- Doppler tissue imaging (DTI) and strain imaging are advanced echocardiographic methods for evaluating diastolic function.
- DTI, while accurate, is complex and user-intensive.
Purpose of the Study:
- To evaluate M-mode aortic root motion (M-MARM) as a simpler, accurate method for assessing LVDD.
- To compare the diagnostic accuracy of M-MARM with DTI and mitral inflow velocities (MIF).
Main Methods:
- Screening of hypertensive patients and normal subjects for LVDD.
- Utilizing DTI, MIF, and M-MARM for diastolic function assessment.
- Analyzing the motion of the aortic root in diastole via M-mode.
Main Results:
- M-mode aortic root motion (M-MARM) demonstrated comparable accuracy to DTI in detecting LVDD.
- The M-MARM technique proved to be easily obtainable and less complex than DTI.
- M-MARM effectively ruled out regional diastolic impairment.
Conclusions:
- M-mode aortic root motion (M-MARM) is a reliable and user-friendly echocardiographic tool for assessing left ventricular diastolic function.
- M-MARM offers a valuable alternative to DTI for diagnosing diastolic dysfunction, particularly in clinical settings.
- The study validates M-MARM as an accurate method for identifying and excluding LVDD.
Related Concept Videos
01:22Aortic 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...
01:23Mitral Stenosis II: Clinical features and Diagnostic Tests
Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
01:15Aortic Regurgitation I: Introduction
IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
01:23Mitral Regurgitation II: Clinical Features and Diagnostic Tests
Mitral regurgitation (MR) is a valvular heart disorder in which the mitral valve fails to close tightly, allowing blood to leak backward into the heart. Understanding the clinical manifestations, assessment, diagnostic findings, and medical management of MR is crucial to effectively managing affected patients.Clinical Manifestations of Mitral RegurgitationMitral regurgitation can be acute or chronic, each presenting differently and requiring different approaches:1. Acute Mitral...
01:20Mitral Regurgitation I: Introduction
Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...