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Related Concept Videos

Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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...
Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
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...
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...

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Related Experiment Video

Updated: Jun 19, 2026

Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism
11:04

Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism

Published on: September 1, 2014

Past, Present, and Future of Evaluating Diastolic Function.

Sherif F Nagueh1

  • 1Methodist DeBakey Heart and Vascular Center, Houston, TX.

Circulation. Cardiovascular Imaging
|June 18, 2026
PubMed
Summary

Diagnosing diastolic dysfunction and heart failure with preserved ejection fraction is evolving. New echocardiography methods and artificial intelligence show promise for more accurate assessments beyond current guidelines.

Keywords:
artificial intelligenceatrial pressureheart failurepulmonary arterypulmonary veins

Related Experiment Videos

Last Updated: Jun 19, 2026

Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism
11:04

Quantification of Global Diastolic Function by Kinematic Modeling-based Analysis of Transmitral Flow via the Parametrized Diastolic Filling Formalism

Published on: September 1, 2014

Area of Science:

  • Cardiology
  • Medical Imaging
  • Artificial Intelligence in Medicine

Background:

  • Left ventricular diastolic function assessment has transitioned from invasive pressure measurements to primarily echocardiography.
  • Current diagnostic methods involve mitral inflow, tissue Doppler, tricuspid regurgitation, pulmonary vein flow, left atrial size/function, and estimated right atrial pressure.
  • The 2025 American Society of Echocardiography guidelines offer an algorithm for mean left atrial pressure estimation, validated in a large multicenter study.

Purpose of the Study:

  • To review current and emerging methods for assessing left ventricular diastolic function.
  • To evaluate the diagnostic value of updated echocardiographic algorithms for heart failure with preserved ejection fraction.
  • To explore the role of artificial intelligence in diagnosing diastolic dysfunction and heart failure with preserved ejection fraction.

Main Methods:

  • Review of current echocardiographic parameters for diastolic function assessment.
  • Validation of a new algorithm for mean left atrial pressure estimation against invasive methods and clinical scores.
  • Exploration of novel techniques like shear wave propagation velocity, left atrial conduit volume, and valve opening timing.
  • Application of artificial intelligence, including rule-based algorithms and deep learning neural networks.

Main Results:

  • The validated algorithm for mean left atrial pressure estimation demonstrated incremental value in diagnosing heart failure with preserved ejection fraction.
  • Newer echocardiographic approaches show promise for studying diastolic function.
  • Artificial intelligence models are being developed for diagnosing and grading diastolic dysfunction and heart failure with preserved ejection fraction.

Conclusions:

  • Echocardiography remains central to diastolic function assessment, with ongoing advancements improving accuracy.
  • Validated algorithms and novel imaging techniques enhance the diagnosis of diastolic dysfunction and heart failure with preserved ejection fraction.
  • Artificial intelligence holds significant potential to further refine the diagnosis and management of these conditions.