Related Experiment Video

Updated: Sep 28, 2026

Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery
08:17

Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery

Published on: February 20, 2017

Comparison of two different methods for the evaluation of left ventricular ejection fraction in patients with

Daniele Pontillo1, Nicolino Patruno, Aldo Capezzuto

  • 1Division of Cardiology, Belcolle Hospital, Viterbo, Italy. dpontillo@libero.it

Angiology
|December 5, 2002
PubMed

Insights

Assessing left ventricular ejection fraction (LVEF) in coronary artery disease (CAD) patients is challenging. The myocardial performance index (MPI-LVEF) showed poor reliability for systolic function evaluation in CAD.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Echocardiography

Background:

  • Left ventricular ejection fraction (LVEF) assessment can be difficult in patients with coronary artery disease (CAD) due to technical limitations.
  • Accurate LVEF evaluation is crucial for managing CAD patients.

Purpose of the Study:

  • To compare two simple methods, geometrical (Wyatt formula, W-LVEF) and non-geometrical (myocardial performance index, MPI-LVEF), for LVEF evaluation in CAD patients.
  • To assess the reliability and accuracy of MPI-LVEF compared to contrast angiography and W-LVEF.

Main Methods:

  • Study included 26 patients with confirmed CAD undergoing cardiac catheterization and coronary angiography.
  • Left ventricular (LV) function was assessed using 2D-Doppler echocardiography, W-LVEF, and MPI-LVEF.
  • Statistical analysis included correlation and Bland-Altman analysis to compare methods.

Main Results:

  • MPI-LVEF (41±8%) was significantly lower than contrast angiography (52±14%) and W-LVEF (49±13%).
  • No significant correlation was found between MPI-LVEF and geometric LVEF methods (angiographic or ultrasound).
  • Bland-Altman analysis indicated a lack of agreement between MPI-LVEF and other evaluated methods.

Conclusions:

  • MPI-LVEF may not be a reliable or accurate method for evaluating systolic function in CAD patients.
  • Despite limitations, MPI can be a valuable, affordable alternative for global LV function assessment in challenging echocardiographic settings.

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

Related Concept Videos

Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

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...
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...
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...