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Related Concept Videos

Electrocardiogram01:29

Electrocardiogram

An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...
Exercise Stress Test01:26

Exercise Stress Test

Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Imaging Studies for Cardiovascular System I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

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, evaluates...
Imaging Studies for Cardiovascular System II:Types of Echocardiography01:20

Imaging Studies for Cardiovascular System II:Types of Echocardiography

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 diagnosing...
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies01:22

Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies

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...
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...

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Related Experiment Video

Updated: Jun 13, 2026

Assessment of Right Ventricular Structure and Function in Mouse Model of Pulmonary Artery Constriction by Transthoracic Echocardiography
10:33

Assessment of Right Ventricular Structure and Function in Mouse Model of Pulmonary Artery Constriction by Transthoracic Echocardiography

Published on: February 3, 2014

[Assessment of cardiac function by TEE].

Kenta Okamura1, Yasuhiro Koide

  • 1Department of Anesthesiology, Yokohama City University Medical Center, Yokohama 232-0024.

Masui. the Japanese Journal of Anesthesiology
|July 22, 2009
PubMed
Summary

Transesophageal echocardiography (TEE) offers valuable insights into cardiac function, utilizing various parameters to assess systolic and diastolic performance. Advanced techniques and 3D imaging provide objective data for improved patient management.

Area of Science:

  • Cardiology
  • Echocardiography
  • Cardiac Physiology

Context:

  • Transesophageal echocardiography (TEE) is crucial for evaluating cardiac function in surgical patients.
  • Left ventricular (LV) function encompasses systolic function, diastolic function, preload, and afterload.
  • Accurate assessment requires understanding the properties and load dependency of various echocardiographic parameters.

Purpose:

  • To review methods for assessing LV systolic and diastolic function using TEE.
  • To highlight parameters less sensitive to loading conditions, such as mitral annular velocity and Vp.
  • To discuss load-independent indices like LV dP/dt and Tei index for comprehensive RV and LV function assessment.

Summary:

  • Ejection fraction (EF) is a common systolic function measure.

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Primary Outcome Assessment in a Pig Model of Acute Myocardial Infarction

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Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
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Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

Published on: February 8, 2022

Related Experiment Videos

Last Updated: Jun 13, 2026

Assessment of Right Ventricular Structure and Function in Mouse Model of Pulmonary Artery Constriction by Transthoracic Echocardiography
10:33

Assessment of Right Ventricular Structure and Function in Mouse Model of Pulmonary Artery Constriction by Transthoracic Echocardiography

Published on: February 3, 2014

Primary Outcome Assessment in a Pig Model of Acute Myocardial Infarction
14:19

Primary Outcome Assessment in a Pig Model of Acute Myocardial Infarction

Published on: October 14, 2016

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
07:41

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

Published on: February 8, 2022

  • Transmitral flow (TMF) and pulmonary vein flow assess diastolic function.
  • Mitral annular velocity, Vp, LV dP/dt, and Tei index offer load-independent assessments.
  • Real-time 3D TEE provides objective data on LV volumetry, wall motion, dyssynchrony, and valvular pathology.

    • Impact:

    • Improved understanding of TEE applications in cardiac and non-cardiac surgery.
    • Guidance on selecting appropriate echocardiographic parameters for accurate cardiac function assessment.
    • Highlights the utility of advanced TEE techniques and 3D imaging for objective evaluation.