Related Experiment Video

Updated: Aug 17, 2026

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging
11:13

Quantification of Mouse Heart Left Ventricular Function, Myocardial Strain, and Hemodynamic Forces by Cardiovascular Magnetic Resonance Imaging

Published on: May 24, 2021

Left ventricular non-compaction: insights from cardiovascular magnetic resonance imaging

Steffen E Petersen1, Joseph B Selvanayagam, Frank Wiesmann

  • 1University of Oxford Centre for Clinical Magnetic Resonance Research, Oxford, United Kingdom.

Journal of the American College of Cardiology
|July 5, 2005
PubMed

Insights

Cardiovascular magnetic resonance (CMR) imaging accurately diagnoses left ventricular non-compaction (LVNC). A non-compacted to compacted myocardium (NC/C) ratio greater than 2.3 in diastole effectively distinguishes pathological LVNC from other conditions.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Diagnostic Accuracy

Background:

  • Left ventricular non-compaction (LVNC) involves an abnormal myocardial layer.
  • Cardiovascular magnetic resonance (CMR) excels at imaging the left ventricle, especially the apex where echocardiography struggles.

Purpose of the Study:

  • To evaluate CMR's accuracy in differentiating pathological LVNC from normal variants and other cardiomyopathies.
  • To test the hypothesis that the non-compacted to compacted myocardium (NC/C) ratio can distinguish pathological LVNC.

Main Methods:

  • Analysis of cine CMR images from healthy volunteers, athletes, and patients with various cardiomyopathies and hypertrophic conditions.
  • Inclusion of patients with pre-existing LVNC diagnoses confirmed by additional features.

Main Results:

  • Non-compaction patterns were frequently observed across all groups, predominantly in apical and lateral segments.
  • A NC/C ratio exceeding 2.3 in diastole demonstrated high diagnostic performance: 86% sensitivity, 99% specificity.

Conclusions:

  • CMR imaging, utilizing the NC/C ratio in diastole, provides accurate diagnosis of left ventricular non-compaction.
  • This method effectively distinguishes pathological LVNC from other cardiac conditions.
Abstract

Related Concept Videos

Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic 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...